Construction Engineering Australia V5.02 May 201

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ACRS - The Australasian Certification Authority for Reinforcing and Structural Steels Ltd

Have confidence in the conformity of your steel... Wherever it’s from!

With the building products being used on construction sites now sourced globally, the importance of independent, expert technical validation of materials conformance has never been greater. It's simply not enough to think just because steel has been ordered to an Australian or New Zealand Standard that the delivered product will automatically conform with Standards and be fit for purpose - even if it comes with a test certificate. ACRS certification makes checking for steel compliance with Australian and New Zealand Standards easy. ACRS manufacturer and supplier certificates demonstrate INDEPENDENTLY and EXPERTLY that the manufacturer, processor or supplier consistently meets the Standards stated on the certificate.

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Industry News


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through Longevity - Highlighting the benefits of traditional tiled concrete

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MAY 2019 Volume 5 Number 2



Aquatic Facilities


26 Product Focus: Mobile Smart Sinks 30 Traffic Management 34 IPWEA NSW News


40 Concrete Institute News 46 Concrete Admixtures 50 National Precast Feature 56 Product Brief


About the Cover While to the untrained eye one type of 50-metre pool, dive pool or learn-to-swim pool might look the same as any other, nothing could be further from the truth. Choosing the wrong type of pool, or not getting the right specialist engineering or design advice can have serious consequences – especially in terms of longterm maintenance costs. Turn to Page 12 for the full story.


Leadership, direction and action...

Three key ingredients to a positive future Dear Readers, As we move to the end of what seems to have been yet another 'never-ending' election campaign, it would be fair to say that I may have become a little disillusioned with some aspects of the modern political process. What’s more, I feel certain that I am not alone. Now, before any of you reach for the keyboard in readiness to fire off a vitriolic email to complain about any perceived underlying political bias - positive or negative - let me assure you, the following is intended as a completely neutral, nonpartisan editorial. For the record (and yes, I unfortunately have to point this out regularly) I am not affiliated with, or a member of, any political party, interest group or lobby group, and I espouse the following opinions purely on the basis that I am, perhaps not surprisingly, somewhat opinionated! With that in mind... To say that the past decade has been 'politically challenging' at both at a Federal, State and Local Government level would not only be stating the obvious, it would also be an exercise in politically-correct understatement. From unscheduled changes of leader (including numerous changes in leadership teams) and the accompanying accusations and machinations, through to changes in, and cancellations of, major projects as a result of change of government and, most recently, threats to cancel major projects if there is a change of government, it would


Construction Engineering Australia • May 2019

be fair to say that politics in Australia is at best 'robust' and at worst 'completely chaotic'. While that in itself can make for interesting news items and provide those with a proclivity to call into talk back radio or take to social media for a good old rant with something to really get stuck into, I believe that this constant political upheaval is a major detriment to our country – at both a federal, state and local level. Particularly in terms of the 'uncertainty' that it creates across the economy and within our key industry sectors. As anyone involved in business will surely know - regardless of the size, type or complexity of the business - nothing is more damaging to business than uncertainty. Put simply, trends will come and go, demand for products and services may rise and fall, but nothing will finish your business off quicker than uncertainty. Unfortunately, the tragic side-effects of political uncertainty are being highlighted through our industries and reflected across all facets of the economy. After all, while politics may exist on a 3- or 4-year cycle, for business - large or small – major investment in equipment, facilities and personnel do not. And it's not only about the required lead times for planning, equipment purchases, staffing and general growth, it's also about long-term viability. Once again, these comments ARE NOT aimed at any particular political party or person. They are intended as a 'call to action' for those involved in all levels of the political process to consider the wider implications

of inaction and then, hopefully, work together in constructive manner to overcome whatever hurdles may be currently preventing us from achieving many outcomes. It may sound 'utopian', but we really do need to think about 'the greater good'. Sure, it may seem like an old-fashioned, outmoded way of thinking (I'll admit, after reading it back even I'm shaking my head a little and wondering if we can ever achieve this type of consensus) but there are more important things at stake than individual careers, egos or political ideologies. What we, as a nation, really need from our governments is: Leadership, Direction and Action – a genuine, realistic ‘vision for the future’ on all fronts. From public transport and transport infrastructure, though to climate change, economic development, water and waste management, public facilities and services, planning for future population growth, and so many more areas (far too many to list). It’s up to us to demand this of our governments. Be they Local, State or Federal, it is their responsibility to deliver for the good of all - regardless of political leanings or affiliations.

Anthony T Schmidt Managing Editor

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REMOVING BANNED CLADDING MATERIALS FROM BUILDINGS KEY TO REBUILDING PUBLIC CONFIDENCE Respected global building regulation and fire safety expert engineer Dame Judith Hackitt DBE has warned that banned cladding in Melbourne’s buildings needs to be remediated to reassure residents of their safety. Dame Hackitt, who visited Australia as a guest of RMIT earlier in the year, said the global building and construction industry must focus on constructing and maintaining buildings which were safe for people to live in. “Construction safety is too focused on the workforce, not those who will use the buildings,” Hackitt said. “It is not an option to simply correct the system for the future without addressing the problems which may exist within existing buildings. “With regards to cladding specifically in Victoria, provided it is clear what can and cannot be used, replacement of existing non-compliant material should be pushed as a priority. The challenge will be who pays for the remediation.” Her comments came weeks after the blaze at Neo 200, which had cladding similar to that used on London's Grenfell Tower, and almost a year after the Victorian Government banned flammable cladding on new buildings. Banned cladding remains on approximately 750 to 1,400 existing buildings in Victoria, including several hospitals, and recent reports suggest there’s little sign it is being removed with any urgency. Hackitt said there appeared to be similar problems with the Australian and UK regulatory systems.


Construction Engineering Australia • May 2019

The engineer led an independent British Government review into the regulatory system for high rise buildings in the wake of the 2017 Grenfell Tower fire where 72 people died. She said the Australian system appeared to drive “box ticking” with regulatory requirements in the National Construction code, rather than focusing on whether a building, as designed and built, was fit for purpose. “The most important thing is to consider high rise residential or multi-unit apartment buildings as complex systems, rather than separate elements,” she said. “This, in turn, requires a disciplined approach to ensure that what is proposed and approved to be built is actually what is built. “There must also be clear and unambiguous assignment of responsibility at every stage of a building’s life cycle from design, through construction and into occupation and use.” Late last year the UK government announced it intended to implement all 53 recommendations from Hackitt’s end-to-end review in full. Her final recommendations included: • The establishment of a Joint Competent Authority comprising the Health and Safety Executive, Local Authority Building Control, Fire and Rescue Authorities; • The introduction of a safety case approach and permissioning regime which will only allow buildings which are demonstrated to be safe to be constructed and occupied; • Serious penalties for those who fail to comply before an incident or tragedy occurs; • Clearer responsibilities to manage ongoing safety during occupation, including a nominated building safety manager as a day-to-day contact for residents; • Stronger testing, labelling and traceability of construction materials; • Providing residents greater access to and transparency of safety information from owners; • Analysis and follow up of dangerous occurrences through confidential reporting and whistleblowing.

NUMBER OF AUSTRALIAN HOUSEHOLDS WITH SOLAR POWER TOPS 2 MILLION... AND COUNTING The Australian solar industry has achieved another record-breaking milestone, with the number of households now enjoying the benefits of rooftop solar reaching a whopping 2 million. Clean Energy Council Chief Executive Kane Thornton said the milestone recognised the growing appeal of solar for consumers looking to harness the power of the sun to reduce their power bills. “Homes with rooftop solar installed are saving on average of about $540 per year on their electricity bills,” Mr Thornton said. “Solar is a clear way for consumers to take control of their power consumption and cut costs, and it’s growing quickly by word-of-mouth.” Queensland continues to lead the nation in rooftop solar, with four of the nation’s top five solar postcodes hailing from the Sunshine State. Bundaberg in central Queensland topped the list for the highest number of households with solar power, followed by Mandurah in Western Australia, then three other Queensland locations: Hervey Bay, Caloundra and Toowoomba. Mr Thornton said rooftop solar acts like a minipower station, helping to reduce strain on the electricity network when it is most needed – like during hot weather when air conditioners are running full tilt. “An average of six panels per minute are being installed in Australia, with the Australian Energy Market Operator estimating an average of 10-20 panels per minute if large-scale solar projects are factored in. Along the way a new industry has been created – thousands of sparkies have specialised in solar power, and it’s hard to find a group of people with as much passion for what they do,” he said. Mr Thornton also urged consumers considering solar to spend some time doing their research and not be rushed into making a purchase. “Installing solar is a big decision,” Mr Thornton said. “By choosing Clean Energy Council Accredited Installers and Approved Solar Retailers, customers can be sure their new system is installed correctly and safely and provides all the expected long-term benefits of rooftop solar.” For more information on maximising the benefits of solar, visit: www.solaraccreditation.


TURNING OLD CLOTHES INTO HIGH-END BUILDING MATERIALS Researchers at UNSW Sydney have developed an effective process to turn old clothing and textiles into high-quality building products such as flat panels. These high-end composite products can have a wood veneer look or a ceramic-style finish and were lab tested for qualities such as fire and water resistance, flexibility, acoustic and load-bearing capabilities but have not undergone any formal regulatory assessment. This follows a separate but related research exercise that converted used glass into high-quality ceramics suitable for benchtops and tiles in kitchens and bathrooms that can come in all sort of sizes, colours and finishes. Researchers led by Professor Veena Sahajwalla, Director of UNSW’s Centre for Sustainable Materials Research and Technology (SMaRT), have been scientifically reforming common waste items using prototype technology developed for a laboratory-scale ‘green microfactory’. “These newly published results of the wonderful products developed from waste come as an effort to find ways to reduce waste and address our unsustainable landfill problems, which all countries are experiencing,” she said. “It could be said that consumers and the fashion industry have a lot to answer for, given that clothing is now one of the biggest consumer waste streams, with 92 million tons estimated to be thrown out a year globally. The clothing and textiles industry is the second most polluting sector in the world, accounting for 10% of the world's total carbon emissions.” Reforming old clothing and mixed waste glass into various high-quality building products represents a new way to convert low-value waste into high-value products and materials. This new work builds on technology which can recover and reform materials from electronic waste from UNSW’s demonstration e-waste microfactory launched in April 2018. Veena said that when considering that the population growth trend is expected to jump from a current 6

Construction Engineering Australia • May 2019

world population of 7.6 billion to 9.8 billion by 2050, the earth’s resources need to be preserved and re-used rather than put in landfill or incinerated. “There is much that can be done right now given that scientifically-developed, proven methods are currently available through our green microfactory technology,” she said. “Rather than export our rubbish overseas and to create more land fill, green microfactory technology has the potential to enable small- and large-scale creation of newly manufactured products instead.” While the textiles materials tested exceptional well in labs to mechanical performance properties including strength, flexibility and resistance, further lab testing is required to explore these properties ahead of consideration of applying for any formal assessment against construction regulations. Veena said green microfactories can not only produce high performance materials and products, they eliminate the necessity of expensive machinery, save on the extraction from the environment of yet more natural materials, and reduce the waste burden. Recent UNSW consumer research showed most people did not believe the waste materials they put out in their recycle bins is actually recycled but ends up in landfill, with 91.7% of people saying is it very or somewhat important for Australia to invest in technology to ‘reform’ most common waste to reduce landfill. A major impediment to new solutions to the waste problem, Veena said, was getting the technology commercialised and into the market, and without government incentives to attract industry and change behaviour progress would be slow.

NEW HIGHTECH HOME FOR FOOTERS SA-based company Footersville, a leading manufacturer of pre-fabricated housing components and related timber products, has relocated to a new state-of-the-art, purpose-built factory in Edinburgh after 33 years in Regency Park. The third-generation family business, established in 1956, has also formally adopted the name it has commonly been referred to over this time, Footers. Footers Structural Timber specialises in the detailing and manufacture of pre-fabricated frames such as roof trusses and floor joist systems for the residential building sector. Other than having outgrown its Regency Park premises, Footers’ move to a new facility in Edinburgh was marked by the commissioning of the SF022 AutoEye Truss, the world’s most advanced automatic roof truss production system. Footers is one of only three companies in Australia, and the only one in South Australia, to introduce the Swedish technology which can assemble trusses up to twice as fast as the equipment used in most truss plants today and with unprecedented accuracy. Managing Director Mark Footer said that the new facility in Edinburgh will position the company favourably for sustainable future growth and will cement its reputation as a leading supplier of structural timber in South Australia. “The residential housing construction sector is developing an increasing reliance on pre-fabricated products and components. This technology significantly boosts our production capacity in that space” explained Mr. Footer. “Our new facility and the high-tech truss manufacturing technology it houses will enable us to reduce delivery times during peak periods from six weeks to as little as one or two weeks.” “The system is very versatile and able to adapt to production requirements and means we can manage major orders and complex jobs while maintaining output and world class manufacturing quality.” The AutoEye Truss system uses cameras and robotics to visually identify the roof truss and picks, places, positions and presses the nail plates to the roof truss automatically and perfectly every time. Not surprisingly, the technology comes with a significant price tag. “It is a major investment” explained Mr Footer, “however we are excited by its potential and our clients will be the winners.” The system will see some staff currently working on the truss assembly line redeployed into other areas of the operation. “While the AutoEye Truss system will reduce our labour requirements in the manufacturing of trusses, it will also create opportunities for our staff to learn new skills,” explained Mr Footer.

GREEN FACADES ON THE RISE Horticulturist and Founder of The Greenwall Company, Mark Paul, predicts 2019 will be the year of green facades on the exterior of high-rise buildings across the country. Large area spaces on high-rise buildings present the opportunity for greening more surface area in total in the one job. Over the past two years Mark and his team have seen a dramatic increase in demand for greening the exteriors of high-rise buildings, with a number of large projects already underway this year. “We have been working tirelessly on creating new forms of ecofriendly greenwalls for all types of spaces, including new designs for high-rise buildings,” Mark Paul said. “Not only do greenwalls look fantastic on the exteriors of the buildings, but they truly transform the aesthetics and atmosphere of the street, and surrounding areas, not to mention the health benefits.” “With the current boom in high-rise buildings around the country, we are excited to be working on some large projects and greening tall, large and prominent spaces with the use of larger ecological systems,” Mark added. Mark Paul created what is believed to be the very first greenwall in Australia over 30 years ago. Today, green design is an influential part of the public domain and design interest, so naturally if there are more high-rise building developments, other trends often follow suit. Mark’s top 3 tips for green façades on high-rise buildings: • Trailing or cascading plants with high biodiversity are best for highrise buildings in order to create habitats for many native species. Plant examples include: Ficus, Metrosideros, Brachychiton; • Greenwall & green roof systems are morphing into more passive gravity fed systems that offer opportunities for black water and grey water remediation with back-ups of solar pumping of utilities; • The more surface area to green on high-rise buildings, the better, and the more supportive the greenwall will be for the larger ecological systems. In this kind of environment many species are known to reside including over 23 species of birds, geckos, skinks and frogs amongst others. Importantly, larger scale applications can provide not just energy efficiency and amenity, but cooling and shading, while expanding biodiversity and eventually creating flora and fauna corridors / ecosystems as part of the built environment. For further information, please visit:

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ABOUT THE GREENWALL COMPANY The Greenwall Company is the premier producer of modular and custom designed greenwalls in Australia. Greenwalls can be used like cladding to produce instant ‘greenspace’ both inside and out. The system developed by Mark Paul at The Greenwall Company over some 30 years, presents an innovative system based on inorganic media and adjustable substrate depth that retains moisture and simulates conditions resembling natural soil. In addition, by using plants adapted to impoverished environments and seasonal drought, The Greenwall Company achieves water efficient planting that is resilient to inevitable short-term human and mechanical failures.

1300 240 337 Construction Engineering Australia • May 2019



Building cities for a changing climate Our cities are responsible for a large chunk of the world’s greenhouse gas emissions, so the way we plan and construct them has to adapt to the future impacts of climate change. By Dr Anna Hurlimann and Dr Georgia Warren-Myers, University of Melbourne Worldwide, buildings are responsible for 19 per cent of greenhouse gas emissions and our cities are responsible for up to 70 per cent. So, designing buildings that produce fewer greenhouse gas emissions is vital to help limit global warming and the threats it poses. But we also need to ensure buildings are designed and constructed to cope with our changing climate conditions to bolster their longevity. This means the construction sector has a significant role to play in mitigating and adapting to climate change. The urgency of rapidly reducing greenhouse gas emissions was highlighted in the bleak prognosis from the recent Intergovernmental Panel on Climate Change (IPCC) special report. The IPCC report states that “…limiting global warming to 1.5C would require rapid, far reaching and unprecedented changes in all aspects of society”. This includes changes in the way cities currently function, including land use, energy, industry, buildings, and transport. Our research identifies several barriers inhibiting the construction industry’s response to adapting to climate change.

The current regulatory framework is a key hurdle that many stakeholders within the Australian construction industry raised in our interviews. The National Construction Code doesn’t explicitly address climate change. Updating the regulations is an opportunity to set new benchmarks for the industry. The National Construction Code and its associated standards need to be reviewed and strengthened to ensure climate change adaptation and mitigation are addressed. In the absence of any updated regulations, another barrier is the lack of client demand for buildings to be designed and constructed to address climate change. This sits alongside the perceived additional cost of building and including these mitigation and adaption measures. Yet many people we interviewed say better regulation to address climate change would be beneficial. This would create a ‘level playing field’ for the industry and encourage innovation in the sector. Significant climate change impacts will happen within the lifecycle of buildings that are being constructed now - so it’s

“Significant climate change impacts will happen within the lifecycle of buildings that are being constructed now - so it’s important to design for these changes today. ”


Construction Engineering Australia • May 2019

important to design for these changes today. For example, considerations need to be made now to ensure gutters and drains are built to a size that can cope with bigger rainfall events, and to ensure that our homes stay cooler for longer during increasingly hot summers. Unless we rapidly reduce our greenhouse gas emissions, we will all face significant and catastrophic impacts including increasing drought periods, a spike in the number of extreme heat days, increasing rainfall intensity, and a rising number of extreme events like floods, cyclones, and bushfires. These changes will influence the way our economy and society function. To limit warming to 1.5 degrees (above pre-industrial levels) by 2100, and to limit climate change impacts, we need to reduce our global greenhouse gas emissions, fast – to 50 per cent by 2030 and net zero emissions by 2050. As the IPCC’s special report says, achieving this goal will require a rapid transformation of our urban infrastructure systems including transport, the layout of our cities, and the design and construction of buildings. If we construct buildings that are unable to withstand future weather conditions, we’ll need more electricity to heat and cool our homes and work places. But where we build will also be important; the further out, the more likely we’ll see more transportation-related greenhouse gas emissions, like travel modes for work and leisure. We will need to facilitate city growth on sites that aren’t vulnerable to future risks such as sea level rise. In addition, risk to operational capacity and building obsolescence will become key considerations for owners and occupiers alike, requiring forward planning and construction of buildings to withstand and cope with future challenges. Australia is going through a significant period of population growth. This translates to a large volume of construction, like dwellings and associated urban infrastructure, which is underway in many parts of the country. It’s critical the construction code is updated to ensure that new buildings going up now address the changes we know are occurring and will continue to escalate in the future. Ignoring future climate change in construction is likely to end with many buildings and infrastructure projects becoming redundant, expensive to run or maintain, or even uninhabitable. This creates a plethora of problems for current and future generations. Our research found all disciplines involved in creating a built environment have a role to play in addressing climate change – architects, urban designers, planners, engineers, builders and constructors are all integral to making a change. Understanding how these sectors integrate and influence each other, and how they operate within policy and regulatory frameworks, is crucial to reduce greenhouse gas emissions and so limit the harsh consequences of irreversible climate change.

The research was conducted by Dr Anna Hurlimann, Professor Valerie Francis, Dr Georgia Warren-Myers and Dr Geoff Browne from the University of Melbourne’s Faculty of Architecture Building and Planning. It was funded by The Multiplex Research Program Award.

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HIGHLIGHTING THE WHOLE-OF-LIFE COST AND SUSTAINABILITY BENEFITS OF TRADITIONAL TILED CONCRETE POOL CONSTRUCTION For many councils, their pools and aquatic recreation facilities are not only amongst the highest value assets on their books, they can also represent some of the most expensive line items in terms of ongoing maintenance costs. And while to the untrained eye one type of 50-metre pool, dive pool or learn-to-swim pool might look the same as any other, nothing could be further from the truth. Choosing the wrong type of pool, or not getting the right specialist engineering or design advice can have serious consequences – especially in terms of long-term maintenance costs. In this special report, we take a look at the benefits of using a Life-Cycle Cost Analysis to establish the 'true cost' of these facilities over their projected serviceable life and most importantly, how poor choices during the planning, design and construction phase can end up costing many hundreds of thousands of dollars extra in maintenance costs over the lifespan of a facility.


Construction Engineering Australia • May 2019



n these days of tight budgetary constraints where Local Governments are constantly expected to 'deliver more with less', choosing the right type of pool to meet your community’s needs is critical. Unfortunately, sometimes these choices are being dictated by the projected construction costs and initial project outlay, rather than being based on a full 'Life-Cycle Cost' assessment of the facility. Not surprisingly, the decision to save money during the construction phase can often prove to be extremely costly once the project is complete and the facility is open. In many instances, any perceived savings are rapidly eroded by the additional costs associated with ongoing cleaning and maintenance costs; a significantly shorter serviceable asset life; and in some instances – particularly in situations where specialist engineering and/or design advice has not been sought or followed – failure of the asset well before the end of the projected serviceable life.

And it’s not just about the financial costs. Choosing the wrong type of pool design, or constructing a facility using the wrong type of materials, can also have a major impact on a Council’s sustainability index and targets. Sustainability - whether it’s related to ESD (Environmentally/Ecologically Sustainable Development) goals, emissions targets, reducing water use and energy consumption, reducing waste, increasing recycling, or any number of other strategies or goals - is a major KPI (Key Performance Indicator) for councils and other organisations across Australia. Indeed, many would claim that after budgetary performance, sustainability or environmental performance, is the next item on the list of critical KPI’s, and as such, the majority of councils and Local Government Authorities have mandated extremely ambitious sustainability targets across all of their facilities, services and operations. With that in mind, when it comes to assessing the ‘sustainability’ of a structure - be it a building, road or pool - one of the

primary considerations is that of longevity. This not only relates to the overall useful/ operational life of a structure, but also the quality, performance and appearance of both the structure and its individual components, and the amount of energy, materials and effort required to keep the facility safe, clean and fully-operational over its serviceable life. Put simply, as with all things, the ‘sustainability credentials’ of a structure such as a commercial size pool extend far beyond the amount of embedded energy associated with the materials used and the energy invested in the initial construction process. In fact, for many structures particularly those with a design life of more than 25 years - the energy and effort invested in repairs and maintenance can often far outweigh the initial ‘environmental’ cost of the project. Whether it’s the building, the fixtures & fittings, the floor or the pools, the overall quality, performance and longevity of every component of an aquatic centre has a direct impact on the overall sustainability

In short, when it comes to sustainability, longevity is the goal. The longer a structure such as a pool can remain in full active service the better… it saves money, it saves energy and it keeps the ratepayers happy by providing a quality, usable facility for many years.” Construction Engineering Australia • May 2019



So, the first question is: what is the serviceable life of a commercial swimming pool? The answer is: it depends what type of pool you build. There are basically two options: • a traditional tiled concrete pool • a modular pool Importantly, while these may look very similar above the waterline (both are capable of providing a FINA Competition Standard result), there are some significant differences between the two – especially in terms of ‘whole-of-life’ asset maintenance costs over the pool’s operational life. However, before equivalent lifecycle comparisons can be made, the question of the design life and/or operational asset life of both tiled concrete and modular pools needs to be considered. In Australia, traditional tiled concrete pools ‘WHOLE-OF-LIFE’ are engineered and designed in accordance MAINTENANCE COSTING with a number of Australian Standards, While the average capital cost to including AS1170 – Loading Standards, construct a competition standard 50m x AS3735 – Concrete Structures for Retaining 20m swimming pool currently stands at Liquid, and AS3600 – Concrete Structures, around $1.6 million (structure only), as and are generally constructed with a 50-year with all structures, buildings and other design life. The oldest tiled concrete pool in assets, this is not where the spending Australia currently stands at 115 years, and ends. Indeed, even the best engineered while this is clearly well above the average, it and constructed pool will require repairs, Concrete_v_Modular_PoolGraphic_210x148_v3.pdf 1 21/05/2019 10:45:35 AM is important to note that there are many tiled maintenance and refurbishment over its concrete pools across Australia that remain serviceable life. rating of your facility. Every time that any maintenance work has to be carried out, no matter how minor, you are investing energy into that structure. From the energy required to manufacture repair or replacement materials and ship them to the site, through to the energy and effort involved with getting a maintenance crew to the site and completing the work, it all adds up – in terms of both cost and invested energy. In short, when it comes to sustainability, longevity is the goal. The longer a structure such as a pool can remain in full active service the better… it saves money, it saves energy and it keeps the ratepayers happy by providing a quality, usable facility for many years.

in full service despite the fact that they’re well over 50 years of age. What’s more, the majority of these are still structurally sound, and can expect to continue in ‘active service’ for another 20-40 years - a staggering lifespan (especially in this day and age). As for modular pools, there are a number of commercial modular pool types available in the Australian market, and while some variants claim to have a ‘virtually unlimited life-span’, most have a Structural Warranty of only 25 years. The oldest known modular pool in Australia currently stands at approximately 20 years.

COSTING FOR A 50-YEAR SERVICEABLE LIFE While this article is not trying to suggest that a modular pool will become completely unusable after 25 years simply because the structural warranty expires, due to the fact that concrete pools in Australia are constructed to Australian Standards including AS3600 with a 50-year structural design life (and in the absence of a definitive ‘design-life’ for modular pools), for the purpose of ‘whole-of-life’ cost comparison, this article assumes a 50-year operational asset life for both pool types.

Lifecycle: 50m Tiled Concrete Pool and 50m Modular Pool Tiled Concrete Pool

Approx. Total Cost $1.9M

Design Life Ends per AS3600


Repairs $30k



Renovation $200k



Oldest Known Australian Tiled Concrete Pool

Repairs $50k









Liner Replacement $300k




Structural Warranty Ends**

Liner Replacement $300k

Oldest known Australian Modular Structure



Approx. Total Cost $3.53M

Modular Vinyl Lined Pool


Lifecycle Cost Summary: 50 Years Tiled Concrete Pool - 50m(1) Capital Cost Tiling Repairs (15 yrs) Pool Renovation (30 yrs) Tiling Repairs (45 yrs) Total Cost (1)

Modular Pool - 50m(1) $1,600,000 $30,000 $200,000 $50,000 ~$1.9M

Capital Cost Replace Liner (15 yrs)


** Replace Stainless Steel Shell/Supports (& Liner) (~25 yrs) $1,325,000 Replace Liner (40 yrs) Total Cost

$300,000 ~$3.53M

Tables represent major cost milestones during a 50-year life of a commercial pool. Routine maintenance costs and one-off special requirements not included.

Lifecycle Graphic courtesy of Ross Weight, Managing Director, Hydrautech Designs, Consulting Engineers



** NOTE: Lifecycle assumes replacement of stainless steel shell and supports (and PVC liner) to achieve guaranteed 50-year design life as per tiled concrete pools.

Construction Engineering Australia • May 2019


Unfortunately, the 25-year structural warranty on a modular pool also means that in order to achieve an equivalent structural warranty to a tiled concrete pool, the modular pool’s stainless steel shell and supports would need to be replaced after 25-years. This work carries a significant cost (currently reported to be in vicinity of $1.325 million) and involves, for all intents, a total rebuild of the pool structure and replacement of the PVC liner. In addition, for the purpose of equivalency, the following 50-year serviceable lifecycle cost comparison: • assumes that both pool types (tiled concrete and modular) have been designed and constructed by suitably qualified professionals following detailed expert engineering and design recommendations for the specific prevailing site conditions; • divides the capital maintenance requirements for both pool types into 15-year operational periods; • does not include routine maintenance costs and one-off special requirements; and • assumes no increases in cost (all costs based on current estimates).

CALCULATING FUTURE COSTS FOR PROPRIETARY SYSTEMS Another major issue with modular pools is that they are all proprietary systems and designs, requiring specific structural components and liners, supplied and installed by the one manufacturer. Asset owners are effectively ‘lockedin’ to the one supplier for the life of the asset. While this is not uncommon with fleet or other equipment with a 5-10 year projected operational lifespan, it can present a number of significant challenges for assets with an extended 25+ year projected operational life span – especially when that lifespan includes substantial projected capital expenditure. Bottom line – if you have a tiled concrete pool and for whatever reason you decide to change builders, tile suppliers, maintenance contractors, etc., you simply issue a tender, assess the applicants in the usual manner and select your preferred contractors and materials suppliers. As you would for any major capital project. However, if you have a long-term asset which is a proprietary system such as a modular pool, you are lockedin for the life of the asset. There are no other alternate suppliers for structural components, liners or other parts, and often only a very limited choice of specialist contractors. In short, the only other choice would be to replace the pool in its entirety.

Australia’s draft ‘Water Quality Guidelines for Public Aquatic Facilities’ have been developed by experts based on world’s best-practice scientific evidence, and address a range of water quality issues including ‘Incident Response’. The Guidelines are particularly important in terms of responding to instances of accidental contamination by faecal matter, vomiting, blood, etc. The commonly accepted and most effective response to these types of incident is hyperchlorination (also known as super-chlorination or shock-dosing) which involves increasing chlorine levels up to 20 mg/L (ppm). This is particularly critical in eliminating contamination by Cryptosporidium. The proposed hyperchlorination rate in response to a “diarrhoeal incident” is CT (contact time) 15,300 mg/L/min which equates to 20 mg/L (ppm) chlorine for 13 hours or 10 mg/L (ppm) for 26 hours. Not surprisingly, the majority of pool operators will choose to hyperchlorinate to the maximum concentration to reduce the downtime of the pool, especially given that many pools (especially learn-to-swim and toddlers pools) will be hyperchlorinated up to 20 mg/L (ppm) on a semi-regular basis. As well as recommending that free chlorine levels should also be at the lower levels of local codes, most modular pool manufacturers recommend that chlorine concentrations do not exceed 10-15 mg/L (ppm) and that hyperchlorination is kept to a minimum. Indeed, in some instances, chlorination exceeding 15 mg/L (ppm) may even void the warranty on pool.

Construction Engineering Australia • May 2019



WATER & WASTE EMPTYING THE POOL & DISPOSING OF THE PVC LINER Average Capital Maintenance Modular Pools The reason the maintenance costs have been divided into 15-year intervals, is due to the fact that the majority of modular pool designs require the PVC liner to be replaced every 15 years. On a standard 50m x 20m pool, this replacement liner installation carries and average current reported cost of around $300,000. Even assuming absolutely no increase in the cost of the replacement PVC liner - either materials or labour - this activity alone results in a minimum capital maintenance cost of $900,000 over the 50-year operational life of a pool (assuming a new liner every 15 years). However, if at the end of the 25-year structural warranty period the stainless steel shell and structural supports are replaced (together with the PVC liner) thereby providing an equivalent 50-year structural warranty - the total capital maintenance cost over the modular pool’s 50-year operational life would be in the vicinity of $1,925,000.

Average Capital Maintenance Tiled Concrete Pools As stated previously, there are many examples across Australia of pools that have far exceeded their 50-year design life. Furthermore, some of these pools also have tile claddings that have lasted in excess of 50 years with some 16

Construction Engineering Australia • May 2019

maintenance using the original tiles and adhesion systems. The average capital maintenance over the first 15 years of a tiled concrete pool’s operational life is $30,000. The majority of the cost is usually associated with tiling repairs mostly as a result of mechanical damage. Most tiled concrete pools will undergo a major refurbishment/ renovation after around 30-years of operation. Based on current costs, this renovation work carries an average cost of $200,000 for a 50m x 20m pool and will usually include work on tiles, grout, waterproofing and waterstops in construction joints. While the old pool joints generally used waterstops made of copper that lasted at least 30 years, their modern equivalents - with rubber or PVC waterstops, either internal to the concrete or applied to the water side of the joint - have also proven themselves to be extremely effective and long lasting, and are expected to provide a similar operational lifespan. The average capital maintenance cost over the 15 years following the 30-year refurbishment works is around $50,000. Again, the majority of the cost is usually associated with tiling repairs. Tiles are generally replaced with modern DIN Standard tiles that absorb little water, have minimum growth, and

Water usage and wastage is a major sustainability consideration when it comes to choosing between a modular or tiled concrete pool – as is landfill waste disposal. From a water usage perspective, modular pool manufacturers may recommend that the pool is EMPTIED AT LEAST ONCE EVERY TWO YEARS to allow cleaning and general checks to be made on the pool’s internal surfaces. For seasonal pools, modular pool manufacturers may recommend that the pool is DRAINED AT THE START OF EVERY SEASON. Needless to say, emptying and refilling a 50m x 20m pool carries a significant financial and environmental cost, and would also no doubt not be looked upon favourably by the greater majority of ratepayers. In fact, it’s fair to assume that most would consider it a staggering waste of water especially given the importance we (as the world’s driest continent) place on not wasting this most precious resource. From a waste disposal perspective, it’s also important to remember that every 15 years, the old PVC liner from most modular pools will need to be removed and disposed of. This results in a significant amount of waste that, at present, is unable to be easily recycled, and can only be disposed of in landfill. have excellent mortar and grout systems which will generally have a lifespan in excess of thirty years. Experience with many thousands of old concrete pools in Australia has provided engineers with the experience to design very longlasting tiled concrete pools.


SlimFlor® utilises Fielders’ SlimDek 210™ flooring profile in conjunction with asymmetric steel beam sections (ASB) to provide a long spanning, cost effective integrated steel flooring system. The SlimDek 210™ profile and ASB steel sections are constructed in plane with the steel decking supported on the bottom flange of the steel beam providing a floor depth construction zone much less than conventional down-stand beam construction. The deep ribs of the SlimDek 210™ decking provide a zone for the running of services. Fielders SlimFlor® ‘in plane’ flooring system has the potential to significantly reshape steel frame and formwork construction in multi-story building applications. > REDUCED FLOOR CONSTRUCTION DEPTH > LONG SPANNING SLIMDEK 210™ DECKING > INCREASED SPEED OF CONSTRUCTION SlimFlor® not only delivers the intrinsic benefits of steel frame construction, but the optimised 290mm floor construction depth allows an additional ‘free floor’ compared to traditional steel frame design in the same building height for every 10 floors constructed. This means more tenant area for lease, reduced facade cost, reduced construction time, and less materials, labour and waste on site. The SlimFlor® system has shown to reduce construction time by up to 20% in multi-story applications. The speed of erection of the steel frame solution using SlimFlor® over the traditional concrete frame building leads to significant revenue advantages for the client through earlier tenancies. MADE FOR ENGINEERS. 1800 182 255 ///


Northern Beaches Council in Sydney is using Tsurumi SFQ series pumps made from cast 316 stainless steel in their pristine saltwater pools because of their corrosion resistance.

SALTWATER POOL PUMP When the Northern Beaches Council needed a seawater pump to fill and flush their beachside pool at Freshwater, they bought a Tsurumi cast 316 stainless steel submersible. The Council have been using Tsurumi SFQ series pumps to circulate the water in their pristine pools for many years. “There are a number of these submersibles, installed in various pools on the North Shore, circulating seawater to maintain a healthy swimming environment,” said Australian Pump’s Tsurumi product manager Neil Bennett. “These pumps don’t fail from corrosion; the last one only choked when blocked with a discarded shoe. We’ve been told by the council that these pumps generally last 8 to 10 years in the pools,” he said. Tsurumi SFQ series 316 cast stainless steel submersibles are designed to handle a range of corrosive applications including saltwater. Conventional cast iron and lower grade stainless steel pumps can be literally ‘eaten away’ by seawater. The SFQ range includes 2” and 3” three-phase pumps with heads to 44 metres and flows to 2,000 lpm. The pumps used in the pools on Sydney’s Northern Beaches have a 3” outlet and are powered by a 7.5 kW 2-pole motor. They feature a high capacity open-style impeller that will handle sand and solids to 23mm. The big difference with Tsurumi’s SFQ series, is their unique stator housings which are cast and machined 316 stainless steel. In simple terms, this means they last longer. Casings, impellers and suction covers are also cast 316 stainless steel. The grade of stainless steel used has a higher content of carbon for strength. It also has a high proportion of nickel and molybdenium for improved corrosion resistance. No welds are required, which means no pitting and reduced oxidisation. This material is also capable of withstanding abrasive liquids. On the Northern Beaches, the council also fits anodes to prevent electrolysis which occurs when two dissimilar metals come into contact. These are replaced annually as part of their winter maintenance routine.

Tsurumi incorporate a number of features that enhance the life expectancy of the pump and cut maintenance costs. These include a unique anti-wicking cable gland. Water is prevented from wicking down inside the cable. The motor is protected even if the cable is damaged or the end is accidentally immersed. All Tsurumi pumps have a double silicon carbide mechanical seal. Both seal surfaces are submerged in an oil chamber, well away from the pumped liquid. A patented oil lifter ensures the mechanical seal faces are always lubricated and cooled, even if the pump is installed horizontally. Tsurumi Pump developed the product range in response to requirements in the Japanese market for super-tough pumps for the chemical industry. Like all Tsurumi pumps, they are backed by a threeyear warranty against faulty material or workmanship. A comprehensive free literature pack, as well as application data, support and free advisory service is available from Australian Pump Industries’ engineering team. For further information, visit the Australian Pump website: or contact them on: 02 8865 3500.

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Construction Engineering Australia • May 2019

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Building owners, managers, designers and constructors have a duty of care to provide a safe environment for people occupying buildings (“patrons”). In terms of floor surfaces, this means the floor finish must have the appropriate slip resistance for the floor application. In Australia, the slip resistance recommendations and/or requirements are outlined in various Standards, Handbooks and Codes (AS 4586: 2013, AS 4663: 2013, HB 198: 2014, HB 197: 1999 and NCC 2019 Building Code of Australia).

SLIP RESISTANCE CLASSIFICATION Flooring materials can be assessed into four different classifications: • P Classifications – internal or external surfaces where there is a likelihood of the surface becoming wet or contaminated during normal use. This test is based on the pendulum test developed by the UK Transport and Roads Research Council. Results are reported in BPN (British Pendulum Number) and are compared against a table which dictates the applicable P classification. • A, B, C Classifications – surfaces that are intended for use in predominantly barefoot areas • D Classifications - internal surfaces that should remain clean and dry during normal use • R Classification - profiled and textured surfaces, or surfaces intended to be installed where heavy contamination may be encountered under normal use

TEST METHODS Differing test methods apply for new and existing flooring under different Australian standards. Test methodologies are rigorous and should be carried out by a NATA accredited testing laboratory using qualified and experienced staff. 20

Construction Engineering Australia • May 2019

All test methods are a simulation only and are used as standardised methodologies to assess and compare different flooring surface materials. Each test method has its own inherent limitations and will not necessarily be representative of a real-life situation and those potential variables.

TEST METHOD OBSERVATIONS • Internationally, the R rating is the dominant slip resistance classification methodology due to its greater use throughout Europe for many years. There is one Australian tile manufacturer remaining and as a result tiles used in Australia are manufactured in Europe or Asia • Many international tile manufacturers represent R ratings as part of their product offer, not P ratings as this relates to the Australian Standards. • Importantly due to the different test methods, there is no direct correlation between R ratings and P ratings. Whilst there may be some overlap in the test outcomes, it can never be assumed that a particular R rating correlates with a particular P rating (E.G. it cannot be assumed that an R10 will always be a P3). Historic testing shows an R10 tile may be between a P2 or P4 rated tile.

GUIDELINES FOR SPECIFIERS Tables 3A and 3B of the HB 198:2014 Handbook establishes a basis for specifying pedestrian surface materials for various applications in new buildings. It is designed to be read in conjunction with HB 197: 1999 which provides more comprehensive application examples. However, slip resistance specification is not simply a matter of looking up tables. Specifiers must also consider the intended use of the space, other related flooring standards and operational issues, including:

• • • • •

How is the space to be used: number of patrons, types of patrons? What type of footwear will patrons use if any? Is the area wet or subject to water inundation? Is the area subject to spills? Is any adjoining area a significantly different slip resistance? (under HB 197:1999 flooring slip resistance must not equal or exceed 2 levels of slip resistance ratings difference)

Elite Thermal Covers keep everyone happy.

SLIP RESISTANCE & CLEANING There is a direct link between slip resistance and cleaning practices/ costs. A higher slip resistance will require more cleaning effort and therefore an increase in cleaning costs. Cleaning practices can also alter the slip resistance of a floor material detrimentally. Case studies exist of public flooring being stripped of its slip resistance in a single night by poor cleaning practices.

PUBLIC FACILITIES Changes within the Australian Standards, the move to off-shore manufacturing and a lack of knowledge is leading to an increase in the incidence of slip resistance related issues at design, construction and operational stages of the asset life cycle. Managers and operators of public facilities benefit from a deeper understanding of slip resistance specification and testing, and operational issues associated with slip resistance in order to provide safe public spaces and assets offering public investment longevity. Recently completed projects Gurriyarra Aquatic & Wellbeing Centre in Bendigo and the Eltham Leisure Centre are examples of projects where slip resistance issues have been well considered by designers, constructors and operators alike. With more than three decades of experience, Ceramic Solutions have a team of experienced staff who are available to assist with slip resistance related matters. For further information, please contact Ceramic Solutions on: 03 9545 5322 or email:

Save your Centre thousands on the cost of: • Heating • Water & chemicals • Building Maintenance

Established 1989

1300 136 696

Construction Engineering Australia • May 2019




HIGHLIGHTING THE IMPORTANCE OF A STABLE AND LEVEL POOL STRUCTURE FOR WETDECK POOLS Brad Fong - Director, Geoff Ninnes Fong & Partners CLIENT: Ballina Shire Council / Crystal Pools HEAD CONTRACTOR: Woollam Constructions AQUATIC ENGINEER: Geoff Ninnes Fong and Partners POOL BUILDER: Crystal Pools POOL FILTRATION CONTRACTOR: Aquatic Projects In 2017 Ballina Shire Council in the NSW Northern Rivers region awarded the design and construction of two aquatic centres - Ballina and Alstonville - to Woollam Constructions. Crystal Pools was engaged by Woollam Constructions to design and construct a 50m x 20m, 25m Learn to Swim and a splash pad with water features in each of these centres. Crystal Pools engaged Geoff Ninnes Fong and Partners (GNFP) to design and document the pools including the pool water treatment. Other features of the pools included: • Use of Ultra Fine Filtration (UFF) for all pools (UFF delivers superior water quality and a reduction in water use when compared to sand filtration) • Wetdeck for all 50m and learner’s pools, with all structures formed and poured • Fully tiled using German DIN standard tiles Each site had ageing pools, particularly Ballina where the old 50m scum-gutter type pool built in the 1970’s had settled differentially due to poor ground conditions and the structure not being designed for these conditions - the result being water flowed preferentially to one end and side. Apart from being a structural issue that compromises the structure and jointing in the pool, more importantly, the fact that the pool water is not being disposed of evenly around the perimeter of the pool, means that it is also likely to leave dead spots of unfiltered water. This can result in the pool water quality being compromised, and may lead to a health issue for pool users when the pool is under heavy use. All the existing pools were demolished. The new 50m pool at Ballina was piled using steel screw piles to competent founding material. All pools featured a wetdeck on each side down the length of the 50m pool and around the perimeter of the learn to swim pool. The importance of a level wetdeck is critical to the pool water treatment system, and as such, the tolerances for structural movement required for a wetdeck pool to remain operational and remain level enough for the water to flow evenly are very stringent.


Construction Engineering Australia • May 2019

The maximum differential movement of a wet deck pool is approximately 3mm to 4mm throughout its length and across its width to maintain even flow of water over the wetdeck. Surprisingly, this requirement is often not considered by structural engineers when designing pools. Achieving these tolerances usually means wet deck pools either have to be piled to non-yielding strata like rock, or bear on non-reactive natural ground such as sand. In highly reactive clay sites, in addition to piling, void formers may also need to be used under the pool floor to negate large uplift pressures from swelling of clay soils which can be of such magnitude to lift the pool whilst it is full of water. When it comes to designing public pools incorporating wetdecks, GNFP always considers each site with expert geotechnical advice and are mindful of the critical tolerances required for a wetdeck pool. It is also important to consider pool leakage effects on the pool foundation when designing swimming pools. Old pools built in the 1960s or 70s often suffer from pool leakage, as pool joints do not usually last more than around 25-30 years. This can detrimentally affect the pool bearing or change the moisture content of reactive soils, resulting in excessive movement on the pool structure. TOP: Nestled on the banks of the Richmond River, the new Ballina Pools have been specifically engineered to cope with the poor ground conditions. BELOW: The Alstonville Aquatic Centre also features a new 50m x 20m pool, a 25m Learn to Swim pool and a splash pad with water features. The pools use Ultra Fine Filtration (UFF) and have been fully tiled using German DIN standard tiles.




Andrew Boy Charlton Aquatic Centre Manly, NSW

Geoff Ninnes Fong & Partners (GNFP) has been designing, engineering and delivering innovative aquatic and structural building solutions since 1974. > > > > > > > >

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T: (02) 9332 5100 E: Contact: Brad Fong or Gordon Smith

T: 0418 678 993 E: Contact: Geoff Ninnes

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Centenary Sports Precinct Pymble Ladies College, Sydney


COMMERCIAL POOL COVERS A CLEVER INVESTMENT IN MORE WAYS THAN ONE! When it comes to getting the most out of your aquatic facilities budget, one of the most efficient and effective ways of reducing operating costs, is to invest in a commercial pool cover. Not only will a pool cover help to significantly reduce water heating and facilities maintenance costs, it can also help to deliver a substantial reduction in evaporation when the pool isn’t in use. Bernard Schenk, Commercial Sales Manager with leading commercial pool equipment specialists Elite Pool Covers, explained: “Installing a good quality commercial pool cover can not only significantly reduce water loss through evaporation, it can also, quite literally, end up saving the facility owner tens (or even hundreds) of thousands of dollars in operating and maintenance costs.” “From reduced energy bills for water heating, through to the extended painting and maintenance intervals that can result from reducing the amount of condensation being generated in indoor aquatic facilities, a commercial pool cover really is an excellent investment – both financially and environmentally,” he added. While commercial pool covers are commonplace in privately-owned facilities, they are not as common in council-owned facilities. Worse still, there are facilities where they have a pool cover, but the operators aren’t using them. While the reasoning behind not installing or using a pool cover range from ‘extra work for no benefit,’ ‘not enough space to store a blanket’, ‘not enough time available to deploy and retrieve it each day’, ‘health

and safety concerns with its operation’, ‘cost of wages for the staff operating the pool blanket’ and, of course, ‘not having enough funds available to purchase’, the truth of the matter is, based on the savings experienced at numerous facilities across Australia over many years, one would be hard-pushed to find a better-value addition to any aquatic centre.

SAVING ON EXPENDITURE A FALSE ECONOMY The idea that a facility can reduce it’s costs by not spending the money on a pool blanket is truly one of ‘false economy’. According to Bernard, most aquatic centres could expect to fully recoup not only the capital cost of the cover, rollers and associated hardware, but also the dollar value of the additional labour required for daily operation in 18 months or less through reduced water evaporation, reduced energy costs and even reduced maintenance costs. “Put simply, these covers are a ‘no brainer’ in terms of capital investment – both for indoor and outdoor pools,” Bernard said. “First and foremost, water evaporation is immediately reduced by the percentage that the covers are on the pool. If the pool is operational for 16 hours a day and covered for 8 hours a day, water evaporation is reduced by a third so you’re immediately saving on water costs.” In addition, for indoor pools, this reduction in evaporation – which inevitably turns into condensation - can also deliver a significant reduction in maintenance costs.

Pool covers deliver significant savings in water and energy costs for both outdoor and indoor pools.


Construction Engineering Australia • May 2019

Powering a Sustainable Future Blending as part of this stunning Donovan Payne architectural design, the attractive movable bench seating actually contains the pool blanket system.

“I recently visited a facility where all the window frames had to be replaced – at a total cost of over $300,000 - due to the extensive corrosion caused by condensation,” Bernard added. “And another customer of mine in WA told me they had calculated that even after the cost of the pool cover and all the other associated costs including labour, that they will save around $1 million over the next 20 years because the interval between repainting would now be 8-10 years rather than the five-year interval before they had the pool cover. An outstanding result for an investment of under $100k – especially given the blankets themselves have an estimated lifespan of between 10 – 15 years.” Then, of course, the is savings in energy and associated costs. Regardless of the type of heating and energy source used – whether it’s gas, electricity, co-generation or even geothermal – energy use is energy use. And it has a cost – both environmentally and financially. “Heating an uncovered pool during the hours that it’s not in use is like having the heater on an leaving the window open,” Bernard said. “As with the evaporation issue, every hour that the blanket is on the pool is a reduction in the amount of energy required to maintain the optimum temperature. And the fact that the pool is generally covered at the coldest part of each day (e.g. – the middle of the night) the heating system doesn’t have to work anywhere near as hard to maintain the temperature.” While these benefits apply to all heating systems, they are particularly beneficial for traditional gas or electric-powered heating systems. In fact, with energy costs being what they are – some pools can cost upwards of $1,000 per day to heat – reducing energy consumption for 8 hours per day over the estimated 10-15 lifespan of the pool blanket can, quite literally, deliver hundreds of thousands of dollars in energy cost savings. For further information, please call Elite Pool Covers, T: 1300 136 696 or visit:

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For indoor pools, pool covers can also deliver significant savings on building maintenance.

Construction Engineering Australia • May 2019



Saving Water and Protecting Drains Australian-designed smart sinks delivers outstanding results on construction sites

The new Mobile Smart Sinks™ units have been delivering outstanding results at a number of major construction sites

Initially developed as a bench-mounted unit for use in dental and medical facilities and laboratories, the revolutionary Australiandesigned Smart Sinks™ mobile units are also delivering outstanding results on a number of major construction sites. With the first of the new Mobile Smart Sinks™ units having been delivered to a number of major construction sites throughout 2018, their performance in the field has earned them high praise indeed. And, perhaps most importantly, additional orders including repeat orders from clients who want additional units for their other sites. Speaking about the success of the mobile units, Smart Sinks™ co-founders Craig and Leslie Hanson said that they have been overwhelmed by the positive feedback from clients. “We always knew that the Smart Sinks™ technology was going to be able to help when it came to preventing waste residues from being poured or flushed into sinks or drains and reducing water use for tool washing and such, but even we have been amazed at the results in the field,” Craig Hanson said. “As is often the case when moving a product from the R&D phase into full commercial operation, you can’t really see how something is going to go ‘in the field’ until it’s actually out on site and being used on a daily basis – especially when you’re dealing with an extremely harsh operating environment such as a major building site.”


Construction Engineering Australia • May 2019

The integrated water recycling system provides filtered water for tool washing

“That said, the results have been truly amazing – even we couldn’t believe the ‘punishment’ they were able to stand up to without breaking down and the amount of sediment each unit was able to collect,” he said.

“Importantly, our customers are also extremely pleased with the performance of the units,” Craig added. “Not only have they prevented literally hundred of kilograms of waste sediments from being tipped into (and subsequently blocking) any of the drains or pipes, they’ve also saved a significant amount of water.” The key to the success of the units lies within the patented Smart Sinks™ stainless steel sink filtration system, which utilises a series of interlocking independent collection units, joined by a special valve, to collect particles, plaster and sediment from waste water. Waste sediment and suspended particles are collected via 3 disposable filtration bags, which can then be easily removed from the unit and disposed of independently of the system - preventing it from passing into the drainage system. Smart Sinks™ not only eliminate the high ongoing maintenance costs associated with traditional sediment and plaster traps, they also help to reduce water costs and wastage by recycling the filtered water for washing tools via the in-built filtration and pump system. With the primary filtration bag collecting up to 92% of waste material, the subsequent filters remove finer particulates from the wastewater prior to reuse, the recycled water is clean and clear, making ideal for washing down tools - a real environmental win-win for construction sites of any size. For further information on the Smart Sinks™ range, including full video demonstrations of Smart Sinks™ in action, please visit:

From left: The waste sediment collects in the removable filter bag ready for quick and easy disposal; Removing and replacing the filter bag is an extremely fast and easy process; With the new filter bag in place, the Mobile Smart Sinks™ unit is ready to go.









GET SMART! KEEP SEDIMENT & SUSPENDED SOLIDS OUT OF DRAINS, TRADE WASTE AND GUTTERS From plaster sediment and non-toxic laboratory sediments and residues, through to sands, soils and even concrete washout sediments, the award-winning, Australian-designed Smart Sinks™ provide a highly-effective, affordable and easy-to-use method of preventing sediments and suspended solids from being washed into drains or disposed of on-site in gutters and stormwater side entry pits.




• Prevents Blocked Drains • Reduces Drain Odours • Eliminates The Need For Traditional Plaster Traps • Easy To Use • Heavy-duty Performance • Ideal For Dental And Medical Surgeries • Mobile Smart Sinks™ Include Integrated Sink Unit And In-built Water Recycling System • A Must For Every Construction Site And Maintenance Department

Avoid costly drain blockages and the risk of penalties for non-compliant disposal of liquids and sediments with Patented Smart Sinks™ technology.

For further information on the Smart Sinks™ range, CALL US TODAY on 07 5488 4154 or visit: for a full video demonstrations of Smart Sinks™ in action.


BEWARE OF ‘FAKE NEWS’ With the move from NCHRP350 testing to MASH (Manual for Assessing Safety Hardware) as the preferred testing for Truck Mounted Attenuators (TMA’s) in Australia currently progressing there has been confusion amongst some equipment owners as to what equipment is compliant and, perhaps more importantly, what the status of their equipment will be after Australia moves to MASH as the testing standard.

The move by the Austroads Safety Barrier Assessment Panel (ASBAP) towards MASH testing and certification is a complex process that will take some time to implement. The Panel is transitioning the current suite of accepted road safety barrier systems and devices within the Australasian market to MASH guidelines over an extended timeframe, with Part 2 Products (which includes TMA’s) to be completed by 31 December 2020.

This DOES NOT by any definition mean that non-MASH tested equipment is suddenly obsolete or can no longer be used. It also DOES NOT render TMA’s that have been previously approved as tested under NCHRP350 guidelines obsolete or unusable – to suggest otherwise is simply NOT TRUE.

While there is a formal agreement on the transition to MASH testing from NCHRP350 testing, there is NO CUT-OFF DATE for using equipment that has been certified under the NCHRP350 testing while it is operational – to suggest otherwise is simply NOT TRUE.

Even if a TMA is recommended for acceptance at an Austroads level by ASBAP, it must still be approved for use in individual jurisdictions by the relevant State Authority. The State Authorities are responsible for approving the use of TMA's in their individual jurisdiction.

This situation has no doubt been inflamed by the inaccurate information and spurious claims that have surfaced over the past 12 months – including claims that some units will no longer be permitted to be used after December 31, 2020. With that in mind, the following fact sheet has been developed to provide key FACTS as to the current status of the ‘Transition to MASH Guidelines’.

The transition to MASH guidelines is a lengthy and ongoing process and lists of ‘Austroads Approved Products’ are currently a Work in Progress. If a product does not currently appear on a jurisdiction’s list, or is not currently recommended for acceptance at an Austroads level by ASBAP, it DOES NOT mean that it has not been successfully tested and certified to MASH guidelines, or that it is not acceptable for use in that jurisdiction. It may simply have not yet been assessed by ASBAP.

The Scorpion® II Truck Mounted Attenuator was the first TMA to be fully certified as Tested, Passed and Eligible to MASH 16 by the U.S. Department of Transportation Federal Highway Administration. The U.S. Department of Transportation Federal Highway Administration Safety Eligibility Letter CC-132 for the Scorpion® II TMA can be viewed online at: pdf/cc132.cfm

The Scorpion® II Trailer Attenuator is also fully certified as Tested, Passed and Eligible to MASH 16 by the U.S. Department of Transportation Federal Highway Administration. The U.S. Department of Transportation Federal Highway Administration Safety Eligibility Letter CC-138 for the Scorpion® II Trailer Attenuator can be viewed online at: pdf/cc138.cfm



For further information, contact:


P: 1300 217 623 (1300 A1 ROAD) E:



Highperformance products for reliable work site traffic control

As anyone who has ever been on a work site will tell you, having effective and reliable traffic control is not only a critical factor in ensuring safety for both workers and road users, it also plays a key role in allowing work to progress. What’s more, for larger projects – where traffic counterflow measures may need to be in place for an extended period – the traffic control devices being used, need to be robust, reliable, and capable of delivering continued performance 24/7.


Construction Engineering Australia • May 2019


ith that in mind, traffic control, linemarking and safety equipment specialists A1 Roadlines, has developed its portable traffic control and signal systems with a focus on maximum visibility, ease of use and robust reliability. Janine Bartholomew, Manager, A1 Roadlines, explained: “When it comes to portable traffic lights or flashing direction arrows, one of the key factors in improving worksite safety and worker OH&S is to ensure that road users can see them clearly – in all ambient light and weather conditions.” “Whether it’s a large worksite where there’s a lot going on and a lot of distractions, or small remote site in the middle of nowhere, the clearer and more visible the traffic control, the more warning the driver has – giving them maximum opportunity to respond and drive according.”

“Once they’re at the worksite, the units can be set up and operational within a matter of minutes...”

“The next requirement is that the units need to be easy to set up and use,” Janine added. “No one wants to spend a large portion of their day trying to get the traffic control up and running, and that’s why we’ve placed an emphasis on designing our lights and arrow boards with a focus on fast, easy and highly intuitive setup and operation.” “Once they’re at the worksite, the units can be set up and operational within a matter of minutes, allowing the crews to focus on the job at hand,” she said.

CS-400 SOLAR PORTABLE TRAFFIC SIGNAL SYSTEM The latest addition to A1 Roadlines’ range, the CS-400 Solar Portable Traffic Signal System brings to life a new generation of portable traffic light controllers. Whilst it purposely retains many of the features of its predecessor (CS-200) for familiarity and ease of use, the CS-400 also delivers an impressive list of new features that are 25 years in the making. The CS-400 system is comprised of two CS-400 controllers mounted in a trailer unit that is capable of being split, with each unit being positioned separately on the work site. The dual-trailer system design allows the trailers to be connected together so they can be safely and legally towed as one unit. This capability allows the system to be towed to the job site using one vehicle, reducing transport and logistics costs. Designed and built to Australian Standards AS 4191:2015 – Portable Traffic Signal Systems, the CS-400 Solar Portable Traffic Signal System is ISO9001 Accredited and RMS-NSW Type Approved (ITS-TAN000039). The system is capable of operating under manual or automatic control to provide either shuttle control for contra-flow or plant-crossing control. Unlimited Wireless Remotes are also available as an optional extra, enabling the CS-400 to be used for effective traffic control on haul roads, etc. No longer restricted to Master & Slave operation, all controllers are functionally identical and can be defined as any unit

in a multi-way intersection. The units’ high-performance LED lanterns provide maximum visibility and reliability. Each unit is fully self-contained and powered by eight 6V 210Ah batteries, supplied by two 80W solar panels supplying a 20AMP solar charging system. The fully lockable steel enclosure protects the controller and batteries from the elements and vandalism. BENEFITS: • Built to Australian Standards AS 4191:2015 – Portable Traffic Signal Systems • RMS-NSW Type Approved (ITS-TAN000039) ** • ISO9001 Accredited • Solar Powered with LED Lanterns • No longer restricted to Master & Slave - all controllers are functionally identical and system can be controlled by any unit • Direct keypad entry of red and green times • Operating distance – 1.0km line of sight. • No line-of-sight problems with the use of optional repeater to complete the link • Manual control available with both wired and wireless hand-held remotes • Spare Tyre supplied as standard • Backward Compatible To CS-200 Trailers ** RMS-NSW does not allow any system on the market 3-way or 4-way mode OPTIONS: • Vehicle Detectors (2) • 240V Battery Chargers (2) • TRH-4 Wireless Remote (Unlimited number of units can be added into a system) • MC-400 Wired Remote w 25m lead • RP1 Repeater

Construction Engineering Australia • May 2019




CS-400 SOLAR TEMPORARY TRAFFIC SIGNAL SYSTEM Boasting many of the feature of the CS-400 Solar Portable Traffic Signal System, CS-400 Solar Temporary Traffic Signal System, combines robust, reliable performance with compact convenience. The system comprises 2 CS-400 units, mounted in compact steel housings with two pneumatic wheels which enables them to be easily wheel around a worksite.

An optional purpose-built trailer (fits two units) is also available for easy transport to and from the worksite. As with the larger portable traffic signal system, the CS-400 temporary units are no longer restricted to Master & Slave operation, with all controllers being functionally identical and capable of being defined as any unit. The system can work in automatic mode (with direct keypad entry of red and green times) or be remote-controlled using either wired or wireless remotes. Each unit is fully self-contained and powered by one 6V 210Ah battery, supplied by a 50W solar panel supplying a 10AMP solar controller. The units also come standard with a 240V 25AMP charger with a 15AMP external inlet. OPTIONS: • TRH-4 Wireless Remote (Unlimited number of units can be added into a system) • MC-400 Wired Remote with 25m lead • RP1 Repeater • Purpose built trailer with spare tyre

Each unit is fully selfcontained and powered by one 6V 210Ah battery, supplied by a 50W solar panel supplying a 10AMP solar controller.


Construction Engineering Australia • May 2019

A1 Roadlines’ Type C LED Flashing Arrow Sign Trailer meets the requirements of AS4192:2006 Illuminated Flashing Arrow Signs and is RMS-NSW Type Approved. The trailer is a self-contained item of plant, supplied on its own trailer with back-up battery supply powered by two 80W solar panels positioned flat on top of the arrow sign to attain the optimum solar energy regardless of trailer direction. The arrow sign can be lowered, rotated and locked to reduce wind drag while the trailer is being towed behind a vehicle. Used in conjunction with other signs and devices, the Type C LED Flashing Arrow Sign Trailer provides advanced warning and directional information to assist in diverting and controlling traffic around construction or maintenance activities. As the unit is designed to be left unattended, it is fitted with stabilisers and adequate protection against interference from unauthorized persons. In addition, a lockable steel enclosure protects the controller and batteries from the elements and vandalism. FEATURES: • Easy to use on touch controller, with real time display • Arrow can be changed at the push of a button • In built LED diagnostics • Automatic dimming • Heavy duty military specification wiring connectors MODES OF OPERATION • Arrow Right • Arrow Left • Double-Headed Arrow • Non-Directional Warning

For further information on the full range of A1 Roadlines’ products and services, please visit:












In over 90% of smart cushion impacts world-wide, the only structural components requiring replacement are 2 x ¼” shear bolts (cost < $5).



Successful Regional Forums The Institute of Public Works Engineering Australasia (IPWEA) NSW Division toured the state from March through to April bringing their Regional Forums to local communities. The Regional Forums are designed to inform, engage and connect local Public Works Professionals. Beginning their journey in Evans Head the IPWEA (NSW) team visited Port Macquarie, Pokolbin, Cowra, Dubbo, Tamworth, Wagga Wagga, Canberra, Batemans Bay, Shellharbour, Warwick Farm and concluded their Forums in Cronulla. Mick Savage, Roads and Transport Directorate Manager received an award for attending and presenting at his 100th Regional Forum.

Attendees got a first-hand look into new, innovative technologies, discussed current trends within the Engineering industry and had an opportunity to network.

The program provided attendees with a first-hand look into new, innovative technologies, produced an environment to discuss current trends within the Engineering industry and facilitated numerous networking opportunities. The Forums covered a myriad of topics from roads to stormwater pipes as well as traffic management systems capturing a well-balanced look into Public Works. Mick Savage, Roads and Transport Directorate Manager received an award

for attending and presenting at his 100th Regional Forum. The following week Mr John Roydhouse, IPWEA (NSW) CEO received a similar award for having facilitated and presented his 100th Regional Forum. IPWEA (NSW) is extremely proud to have Mick and John on the team and commends them both for their dedication and hard work. Mr Geoff Metcalfe was awarded Honorary membership of IPWEA (NSW) for his outstanding contribution and loyalty to the association since 1990. Geoff has been a very active member over the years; he has organised technical tours, been an IPWEA (NSW) Board Member and Chair of the Mid North Coast as well as much more.

Mr John Roydhouse, IPWEA (NSW) CEO, Mr Geoff Metcalfe, Honorary IPWEA (NSW) Member and The Hon Leslie Williams MP, Member for Port Macquarie.

Update from Young IPWEA During the Regional Forums, the YIPWEA representatives continued the discussion around cadetships with the aim of having every Council within NSW running some form of engineering cadetship program. It has been identified on many occasions that there is a significant concern for the loss of knowledge, or commonly known as 'brain drain' within the industry due to the aging workforce retiring and a large percentage of young engineers looking at the private sector for employment opportunities. Cadetships are not a “quick fix” to the brain drain however they are a longterm solution to ensure the knowledge within the local government sector is transferred onto future engineers that will be in charge of maintaining a huge amount of civil infrastructure. Recently the NSW Government announced co-contributions to Councils for traineeships up to a Certificate 4. 34

Construction Engineering Australia • May 2019

During the Regional Forums, the YIPWEA representatives continued the discussion around cadetships with the aim of having every Council within NSW running some form of engineering cadetship program.

IPWEA (NSW) have been in discussions with the Government to have this extended to include a bachelor level qualification in order to financially assist Councils with the implementation of

engineering cadetships. Please get in touch with your YIPWEA representative to discuss how we can assist in helping your Council implement new or improve existing cadetships.


Boral Asphalt and IPWEA (NSW) renew their Partnership Boral Asphalt have renewed their Platinum Partnership with the Institute for a further three years commencing in July 2019 as announced by IPWEA (NSW) CEO John Roydhouse. Boral Staff have once again travelled the state with IPWEA (NSW) Team throughout March/April as part of the annual Regional Forums and it was during these that the announcement was made. Boral and IPWEA (NSW) have developed a strong partnership over the previous three years and are delighted to

The RTD Local Roads Congress 2019

see this relationship strengthen well into the future. Addressing the audience at the Warwick Farm Regional Forum, Mr Andy Ince, General Manager - Asphalt (NSW/ACT), said: “Boral is built on our customers. We are keen to understand from you what your challenges are. We need the wider community to engage and allow us to understand what you need”.

Don’t miss out on the 2020 Regional Forums The Regional Forums may have concluded for 2019 but IPWEA (NSW) are bringing them to a town near you in 2020 - pencil in these dates so you don’t miss out. Region

2020 Dates

North Coast

Monday 24th February

Mid North Coast

Wednesday 26th February


Friday 28th February

Central West

Monday 9th March


Wednesday 11th March

New England

Friday 13th March

South West

Monday 23rd March


Wednesday 25th March

South East

Friday 27th March


Monday 30th March

Metro West

Wednesday 1st April

Metro North/South

Friday 3rd April

IPWEA (NSW) is coming to a set of headphones near you

John Roydhouse, CEO of the Institute of Public Works Engineering Australasia NSW and Jonathan Russell, Engineers Australia joined ‘The Property Podcast’ to explore what it will take to make our apartment buildings safe. Episode 63 discusses the importance of our public infrastructure outside of residential buildings, whether or not the build quality of newly constructed housing is up to scratch and how tragedies like the Opal Tower, the Lacrosse Tower and the London Grenfell Tower could have been prevented. The podcast and full conversation can be found at: www.theelephantintheroom.

Autonomous and Electric Vehicles. Are you ready? What is going to happen to our current fuel levies and road funding? Returning to Parliament House in Sydney, this year's Local Roads Congress co-hosted by the Roads & Transport Directorate and LG NSW will be held on Monday June 3rd. The Congress will explore numerous challenges confronting NSW road authorities as they manage risks and promote safety within our community as well as preparing for future modes of transport. The Hon. Paul Toole MP will be delivering the opening keynote at the 2019 Local Roads Congress. Mr Toole brings a wealth of knowledge to the Congress as the Minster for Regional Transport & Roads and will steer the conversation towards continually improving NSW roads. The Local Roads Congress creates an opportunity to set the agenda for our road and transport networks at both a policy and technical level within Local Government with key decision makers in NSW State Government in attendance. Bring your elected Councilors and engage in panel discussions and interact with the numerous Members of NSW Parliament. The future of road management over the next decade including future funding and how this is going to evolve will be another focus of the Congress facilitated by Mr Rob Carlton. The program includes Ministers, State Agencies, Councils, Stakeholders, the NSW Police Force and many more. A draft communique will be available closer to the Congress and it is important we hear from you on the day, and the challenges you are facing in your community. The full program, together with details on how to register for the Congress, can be found at: roadstransportdirectorate/aboutrd/newitem/congress

Construction Engineering Australia • May 2019



Communicating the Engineering Message Through discussions during our recent Regional Forums, many Members suggested that engineers were not good at self-promotion. An important way in which to highlight the significant contribution our infrastructure managers make to our communities is through our Annual State Conference; either by presenting a paper or nominating for the Engineering Excellence Awards. The 2019 State Conference under the theme, ‘Unlocking the Value of Infrastructure’ will take place at the Crowne Plaza Hunter Valley on November 6th- 8th. This is your chance to make a real impact and share your knowledge amongst your public works peers.

2019 State Conference: Submit A Paper or Nominate for an Award The Conference Committee is calling for original papers to be presented in

the Hunter Valley and this is your best chance to address current technical and management issues as well as success stories whether rural, regional or metro across all areas of the industry we all work in. Be a part of shaping the program and the future of public works in NSW as we unlock the value of infrastructure. Now is also the time for you to nominate for the annual Engineering Excellence Awards - this opportunity for you and your team is not to be missed and we have no less than ten categories for you to enter projects, programs, innovative developments and outstanding colleagues into. Nominations for the annual Engineering Excellence Awards as part of the State Conference are now open and not to be missed. Our Excellence Awards may contribute towards a fellow Engineer, Works Officer or Road Safety Officer undertaking projects that might not happen otherwise.

IPWEA provides the platform to exhibit your talent and hard work. • Award Winners will automatically be nominated for the IPWEA National Excellence Awards presented at the next National Conference. • Recognition for your organisation and the Project Team • Inclusion in the Engineering Excellence Awards Booklet and on the IPWEA (NSW) website • Receipt of an Award trophy that can be displayed • Recognition of your value to your organisation in being part of an Engineering Excellence Awards Gala. To find out more about becoming part of the program or nominate for the Engineering Excellence Awards, please visit where electronic forms can be downloaded.

The Public Infrastructure Directory The easy way to be an expert. The Public Infrastructure Directory helps even the most complex infrastructure project get off to a flying start. With dozens of moving parts, The Directory will instantly shortlist the products and suppliers required to help you get building. This is the only service available where you can find every supplier you need with the click of one button. Whether you’re building a bridge, constructing a freeway, installing a pipeline or erecting a skyscraper – or something smaller – The Directory will automatically shortlist the most suitable local suppliers for you and once you’ve identified your preferred suppliers, The Directory allows you to 36

Construction Engineering Australia • May 2019

manage them from the start of your project to the finish. When a supplier is chosen, it can then be linked to a personal project that is set-up on

the user’s on-line dashboard. Once linked, the user can make notes, add specifications, attach quotes and communicate directly with one or all suppliers attached to that project. The Directory allows users to set-up multiple projects, to share projects and when completed, to archive projects for future use. This is a unique platform to assist everyone involved in the planning, designing, constructing, funding and management of infrastructure. Embracing latest technology, The Directory is poised to take local suppliers to a national stage. See for yourself at:


and nothing that you don’t! When it comes to digital subscriptions, WHAT YOU DON’T GET is as important as what you do get! When you subscribe to Construction Engineering Australia online YOU DON’T GET: • JUNK EMAIL • SPAM ADVERTISING • UNWANTED EDM’S • 3RD PARTY EMAILS

WHAT YOU DO GET: A single email notification, 6 times per year, to let you know your new issue is ready to download or view online… THAT’S ALL! What’s more, our digital subscriptions are 100% FREE! All of data is managed in-house and WE NEVER sell, rent, borrow or distribute any subscriber data - including email addresses - to anyone… EVER!













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Senator Rice Maps the Future of Electric Cars at the 3rd Emerging Technologies Conference The 3rd Annual Emerging Technologies in Public Infrastructure Conference being held over two information-packed days between 19-20th June in Sydney is shaping up as a must-attend conference. One of the topics being discussed is the future of electric cars, charging stations, and infrastructure planning arrangements. Delegates will hear first-hand from experts representing front-line

organisations including GoGet, Skedgo, NSW Transport, Low Carbon Living CRC, Geoscience Australia, and the Department of Finance, Services and Innovation. Leading councils will also be represented such as the City of Sydney, Wyndham City Council, Ku-ring-gai Council, City of Wagga Wagga, Georges River Council, City of Canterbury Bankstown, and the Wollongong City Council.

This conference offers an opportunity for industry stakeholders to assess ways to manage the cost of building charging stations and supporting infrastructure. Attendees will also gain fascinating insights into establishing national EV targets for light passenger vehicles, light commercial vehicles and metropolitan buses. The discussions also help clarify government policy and funding priorities at the federal, state, and local levels. Australian Greens Senator Janet Rice has warned that Australia lags behind international jurisdictions with the uptake of electric cars and will scrutinize this hotlydebated topic during her keynote speech. Senator Rice is joined by 25+ speakers representing subject matter experts across government, industry and academia. More broadly, these speakers will also discuss the impact of emerging technologies on public infrastructure and engineering. Find out more at: https://www. industry-conferences

2019 success assures CIVENEX will return in 2020 CIVENEX is a large-scale construction event showcasing the latest projects and opportunities within Australian building and construction. With over 7,500 guests and 250 exhibitors attending over the two days, this year’s return at the iconic Hordern Pavilion was a huge success! CIVENEX 2019 partnered with Sydney Build and took on a new look to deliver the largest Infrastructure Expo to date. Exhibitors were given the opportunity to demonstrate and meet with top decision makers and influencers from Councils, Federal and State Government departments, as well as and major contractors. Additionally, CIVENEX was of great interest to members of the public involved in innovation, technology and construction solutions.


Construction Engineering Australia • May 2019

IPWEA (NSW) will once again co-host the 63rd Annual event in 2020 with trade show experts Oliver Kinross at the ICC in Darling Harbour. Oliver Kinross has run industry trade shows throughout the world such as Sydney, Auckland, New York, London and Scotland. As a premier exhibition venue, the ICC provides an opportunity for an even bigger show in 2020. We are welcoming 300+ V.I.P guest speakers on 20 summits across 8 stages, 350+ exhibitors and forecast a huge 25,000 registered attendees. The 2-day event held on the 19th and 20th of March 2020 will showcase all the latest opportunities in infrastructure and construction across New South Wales. Contemporary Industry topics including water management, bridges and recycling will all be covered by well-known presenters who push boundaries and promote outside the box thinking as well as interactive displays using VR technology and much more. With 2020 set to be largest infrastructure exhibition in Australia, we welcome you to join us either as an exhibitor or an attendee on the 19th and 20th of March, 2020 at

the ICC, Darling Harbor, Sydney, NSW. The State Government is right now injecting 20 billion dollars a year into infrastructure to turbocharge the state and improve the communities in New South Wales, which makes it a great time to take advantage of this once in a generation opportunity. CIVENEX has earned a reputation for professionalism and excellence by knowing the market, identifying trends and delivering a showcase event of cuttingedge products and innovation. For further information, please visit:







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The Concrete Institute of Australia will celebrate 50 years in 2020. The Institute was originally formed when members of the Australia Prestressed Concrete Group proposed a change in 1968 where it was resolved to adopt the name Concrete Institute of Australia. This occurred in May 1969 and the first meeting of Council was then held in July 1969 which was chaired by Mr William (Bill) Brown who was elected as the first National President. Following this the Institute was officially registered as a company limited by guarantee with approved Memorandum and Articles of Association on 17th April 1970. To celebrate this momentous occasion the Concrete Institute of Australia is proud to announce the launch of its Golden Jubilee 50 Year Celebrations that will take place in 2020.

SAVE THE DATE A nationwide “birthday party” will be held on Friday 17th April 2020 in all the state capital cities. The date marks the occasion in which the Institute was officially registered as a company limited by guarantee and with the signing of the Memorandum of Association and Articles of Association in 1970.


Construction Engineering Australia • May 2019

NATIONAL SYMPOSIUM To help celebrate the Concrete Institute of Australia’s Golden Jubilee, a traveling roadshow will take place in September 2020. The theme of the symposium will be to look to the next 50 years and where concrete should or could go as a building material. Stay tuned to hear about some big name key note presenters from overseas and Australia, who will be joined by local presenters from the research, innovation, design, constructability, sustainability, and material sectors.

All the birthday party events will be joined together by a national video hook up. During the hook-up, each state will cut a birthday cake, and this will be followed by a sharing of their highlights and acknowledging those people and projects which over the previous 50 years have helped make the Institute the successful organisation it is today across Australia.

CONCRETE INSTITUTE OF AUSTRALIA MEDAL During the Golden Jubilee the Institute will recognise those who have made significant contribution to the formation, growth, and development of the Concrete Institute of Australia over its first 50 years with the Concrete Institute of Australia medal. The Institute has been blessed to have had so many incredible contributors over its lifetime, but some have gone over and beyond the line of duty. The recipients of this honour will be announced in early 2020, and the medallions will be officially presented at the national symposium to be held later in the year.

COMMEMORATIVE BOOK With so much history it is imperative the Institute compiles a book to mark the occasion of its 50th year. The Institute is inviting all its Members to share their stories and anecdotes, as well any old photos and documents. These memories will be used for recording in the book, as well as to retain these archives for safe keeping.

YOUNG MEMBER INVOLVEMENT Throughout the 50-year celebrations in 2020 the Institute will also include the members who will take the organisation through for the next 50 years. Our young professionals will have opportunities to be involved throughout the year with competitions, seminar participation, committee involvement, and through the National Symposium.


If you would like to contribute in any way you can contact, or send any information you may have to, CEO, David Millar, by email at, by post (or in person) at Level 4, 53 Walker Street North Sydney, NSW, 2060, or by phone on (02) 9955 1744.

Australia. The Concrete Institute of Australia has inducted 35 Life Members since Brian Hungerford was first awarded this distinction in 1978.

HONOUR ROLE – LIFE MEMBERS In each issue of the Institute’s publication ‘Concrete in Australia’ in 2019, we will honour some great servants of the Institute, starting with the Life Members. Life Membership is defined in the Institute's Constitution as - “Life Member” means any person admitted as such whom the Council considers has given long and other meritorious service to the Concrete Institute of

Pictured left: (L-R): Rob Wheen (Life Member); Mick Ryan (Honorary Member); Harold Roper (Honorary Member); and Jim Forbes (Life Member).

CONCRETE INSTITUTE OF AUSTRALIA – LIFE MEMBERS Name Year Awarded Brian Hungerford 1978 W.H. Taylor 1979 R.W. Maze 1981 Albert Fried 1988 Phillip Isaacs 1988 Don Beresford 1990 Sandor Mokos 1993 Doug Amey 1997 Kevin Campbell 1997 Stafford Gill 1997 William Hodgson 1997 Ian Orchard 1997 Philip Stevens 1997 Gordon Vogan 1997 Don Buchanan 1997 Brendan Corcoran 1999 Barry Crisp 1999 Jim Forbes 1999 Robert Wheen 2001 David Beal 2003 Bob Potter 2003 Vincent Wallis 2003 Kevin Abrams 2005 Erik Guldager-Nielsen 2007 Mark Turner 2007 Joe Wyche 2007 Steve Freeman 2009 Stephen Evans 2011 Daksh Baweja 2013 Ian Bishop 2013 John Crocker 2013 Wolfgang Merretz 2013 Fred Andrews-Phaedonos 2015 Craig Heidrich 2017 Liza O'Moore 2017

HONOUR ROLE – HONORARY MEMBERS In each issue of the Institute’s publication ‘Concrete in Australia’ in 2019, we will also honour some great servants of the Institute, including our Honorary Members. Honorary Membership is defined in the Institute's Constitution as - “Honorary Member” means any person admitted as such whom the Council considers has given long and other meritorious service to the Concrete Institute of Australia. The Concrete Institute of Australia has inducted 31 Honorary Members since the first President, Mr William (Bill) Brown, and Mr John Hill, were first awarded this distinction in 1974 for their efforts in establishing the Institute.

CONCRETE INSTITUTE OF AUSTRALIA – HONORARY MEMBERS Name Year Awarded William Brown 1974 John Hill 1974 George Feckette 1978 George Goffin 1978 Denison Campbell-Allen 1979 Jim Antill 1982 Leslie Shorter 1983 Bill Ryan 1987 Kevin Cavanagh 1991 Brian Ferguson 1993 John Ashby 1995 Jack Wynhoven 1997 John Fenwick 1999 Ken Day 2003 Alan Carse 2005 John Woodside 2005 Peter Dux 2007 Harold Roper 2007 Gil Brock 2009 W.G. (Mick) Ryan 2009 Bob Warner 2009 Ian Gilbert 2011 John Nutt 2011 Vijay Rangan 2011 John Reid 2013 Stephen Foster 2015 Norwood Harrison 2015 Claude Pincin 2015 Priyan Mendis 2017 Jay Sanjayan 2017 Tony Thomas 2017

Construction Engineering Australia • May 2019



CONCRETE IN PRACTICE – PROGRESS THROUGH KNOWLEDGE Concrete 2019, the 29th Biennial National Conference of the Concrete Institute of Australia, will be held at the state-of-the-art International Conference Centre in Darling Harbour, Sydney, from the 8th to 11th September 2019, and you are invited! The conference, which will focus on the theme Concrete in Practice – Progress through Knowledge, is aimed at delegates, presenters and key note speakers from all over Australia and the world. The conference is dedicated to bringing together global leaders in the concrete industry, covering all aspects of concrete in practice through materials, design, construction, repair, and maintenance, and learning how increased knowledge has seen the industry progress through research, innovation, and know-how. The conference will offer participants from all around the world the opportunity to connect face to face, sharing innovative and interesting ideas with a wide variety of industry experts in the world class facilities of the International Convention Centre Sydney in Darling Harbour. Concrete 2019 is co-chaired by Dr Daksh Baweja and Dr Warren South and will feature a 3-day technical program with over 200 papers and presentations, covering over 20 concrete topics. The conference will also feature a special session throughout the event, held in the exhibition hall, allowing sponsors, exhibitors, innovators, and our next generation of concrete experts to present to delegates. The multidisciplinary theme of Concrete 2019 will provide an excellent forum for networking and education, and an opportunity to meet and interact with practitioners, engineers, scientists, researchers, academics and professionals, from Australia and overseas. Whether you attend technical sessions, sit in on committee meetings, or network with friends and colleagues, this conference will provide you with ample opportunity for professional growth.


Construction Engineering Australia • May 2019

Concrete 2019 is also co-sponsored by the American Concrete Institute (ACI) and a number of notable ACI technical committee members, as well as senior board and staff, will join us in Sydney in September. The CIA has an excellent relationship with ACI and this international alliance will make an impact at Concrete 2019. Together with an impressive list of local and international sponsors and exhibitors, a social program that includes our traditional Welcome Reception and Awards for Excellence in Concrete Gala Dinner, and for the first time a dedicated Young Members program, it is an opportunity to connect with concrete experts from around the world and is a fantastic opportunity to be amongst the best of the concrete industry. Being held in the harbour city of Sydney, Concrete 2019 offers delegates and partners a magnificent opportunity to not only enjoy the vibrancy of Australia’s largest city, but to also admire some of the landmark concrete structures the city has. Three of these – the Sydney Opera House, the Anzac Bridge, and the Gladesville Bridge – form part of the Concrete 2019 logo. The Concrete Institute of Australia is, as always, honoured to be hosting our blue ribbon event, and accordingly invite members and the concrete construction industry at large to join us in Sydney for what we hope will be our biggest conference event ever. For more details read on, or please visit:

REGISTRATION DETAILS Delegate registration is well and truly open, and you can still take advantage of the early bird rates on offer. Go to www.concrete2019. but hurry as early bird closes on the 30th June 2019. Members can take advantage of the significant discounts on offer and there are various categories to register under, as well as reduced fees for students, academics and CIA life, honorary, and retired members.

YOUNG MEMBERS The Concrete Institute of Australia’s Young Members Group are being actively involved in organizing activities and events for the conference. Whilst Concrete 2019 offers all young professionals in the concrete industry a number of opportunities to present, network and learn, the Young Members Group will be: • Organising a breakfast or lunch with a guest speaker. Designed for young members of the industry it will also be open for more experienced members, however it will be focused on our industry members under the age of 35. • Arranging a social evening for informal networking, most likely after the Monday night Welcome Reception. • Providing judges for the Under 35’s Best Paper Award at the conference. For more up to date information you can refer to the Young Members site on the Concrete 2019 website.

Concrete 2019 is already being supported by a number of organisations (see below), in particular Conference Partners, Sika. CONFERENCE PARTNER





OPPORTUNITIES STILL AVAILABLE Sponsorship Chair, Malcolm Boyd, advices that there are still some excellent opportunities available for sponsors and exhibitors for Concrete 2019, but you need to hurry. It’s a fantastic chance to “cement” your brand within the Australian and international building and construction industry, and to be front and centre with those who make it happen. If you are interested in sponsoring and exhibiting at the industry’s premier conference, Concrete 2019, contact the sponsorship and exhibition team at:



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TECHNICAL PROGRAM Concrete 2019 will focus on the theme “Concrete in Practice – Progress through Knowledge”. All the papers have been received and reviewed by the technical committee and the Technical Chair, Dr Warren South, has been very impressed by the quality of papers. Following confirmation and acceptance by the authors the technical program will be developed, but it will consist of 4 parallel streams throughout the 3 days. Some of the major topics being focused on for the conference include (but are not limited to): • Alkali-activated concretes • Alternative cementitious materials • Bridge structures • Construction (infrastructure, development, innovations) and major projects • Durability (and modelling for durability) • Precast and prefabricated concrete • Reinforcing and Prestressing Materials • Repair and rehabilitation • Resilience and Seismic • Shotcrete • Standards, specifications and codes • Underground and Foundation Structures A sneak preview to the technical program shows that there will be papers on: • Case studies around West Connex, Uni SA Cancer Research Institute, & Sydney Metro Barangaroo Station. • Repurposing of major buildings such as the AMP Centre in Sydney. • A review of the history of steel reinforcement in Australia. • Reviews of Australian Standards such as AS3600, AS5100 and more, with specific reference to shear design, shrinkage and creep, serviceability, durability, use of new materials, alkali-silica reaction, and more. • A litany of research and practical application of new materials in the industry. A draft technical program will be available very soon. To stay up to date with the latest information, visit: 44

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The Change in the Concrete Design & Construction Chain The changes that are happening, and will happen, in the concrete design and construction chain are given, not a maybe. These changes are evident right through all the various sectors within the concrete industry, but what are they doing to address them? The forum will include several industry representatives from all sectors including design, construction specification, supply and owner, and will aim to provide some thought provoking discussion and ideas as we challenge the sectors to know what it is that’s changing, the impact these changes will have, and what are the knowledge gaps that need to be addressed. The panel will also include Jeffrey Coleman, ACI Vice President and well-known construction lawyer from the USA, who will take a different look at the challenges through the legal profession’s eyes.

Concrete in Practice – Progress Through Knowledge Concrete 2019’s theme “Concrete in Practice - Progress Through Knowledge” is significant as the conference is dedicated to bringing together global leaders in the concrete industry, covering all aspects of concrete in practice through materials, design, construction, repair, and maintenance, as well as learning how increased knowledge has seen the industry progress through research, innovation, and know-how. However, in a concrete industry that is rapidly changing in the way we design, build, specify, and supply - how do we address the issue of transferring the skills and knowledge to those who need it now? This session will include a panel of industry stakeholders whose role it is to collect, transfer, and use the knowledge. It will also include Ron Burg (Executive Vice President, American Concrete Institute) and David Millar (CEO, Concrete Institute of Australia) who will look at how this applies to professional associations in the industry, how changes in learning and professional development are being addressed, and what might be expected in the future. Visit for additional information..

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Formulated specifically for use in the production of ready mix, precast and prestressed concrete - particularly high strength concrete mixes that are prone to stickiness - ADVA® LS, ADVA® Cast LS or MIRA® LS admixtures makes these mixes easier to pump, place and finish.

Customizable Admixtures Reduce Stickiness of High-Strength Concrete Mixes for Improved Quality and Operational Efficiency GCP Applied Technologies Inc., a leading global provider of construction products technologies, has launched three new families of admixtures to reduce stickiness of concrete. ADVA® LS, ADVA® Cast LS and MIRA® LS admixtures are formulated specifically for use in the production of ready mix, precast and prestressed concrete, particularly high strength concrete mixes that are prone to stickiness. The trio will help companies improve the operational productivity, efficiency and quality consistency of their mixes. “With our new ADVA® LS, ADVA® Cast LS and MIRA® LS admixtures, we can reduce the stickiness of high strength and ultra-high strength concrete with a low water-tocementitious ratio,” said Hua Zhong, Asia Pacific Product Director. “For contractors and producers of ready mix or precast concrete, these admixtures improve the concrete performance, making it

easier to place, pump and finish.” The three new admixture ranges are formulated with the latest patented polycarboxylate technology and are specially designed to reduce the stickiness of concrete, as well as the associated placement difficulties. They are particularly useful in both ready mix and precast concrete with low water-to-cementitious ratios, high cementitious content and/or challenging aggregates mixes. “High strength mixes with high cement factors are increasingly common in Asia Pacific. The application of ADVA® LS, ADVA® Cast LS or MIRA® LS admixtures in these mixes make them easier to pump, place and finish, which reduces on-site labour and improves schedules. Having a mix that’s easier to pump is also kinder to equipment, reducing wear and tear and prolonging their working life,” said Robert AuYeung, Asia Pacific Marketing Director.

The three new admixture families can be customised for different project requirements. ADVA® LS and MIRA® LS admixtures create mixes with improved rheology and good slump retention, while ADVA® Cast LS admixture can be used to create quality high strength precast elements. The admixtures work well with a variety of raw materials, including stone fines, quarry dust, manufactured sand and other challenging aggregates. Using ADVA® LS, ADVA® Cast LS or MIRA® LS admixtures contribute toward sustainable construction because they enable the use of challenging and waste stream materials to produce high performing, high strength concrete that is more durable. “At GCP, we are dedicated to developing high performance technologies like ADVA® LS, ADVA® Cast LS and MIRA® LS concrete admixtures,” Zhong said. “The new admixture families enable producers and contractors to place highquality high strength concrete with enhanced productivity at the plant and ease of placement on the job site,” Dr Zhong added.


ADVA® LS, ADVA® Cast LS or MIRA® LS admixtures can reduce the stickiness of high strength and ultra-high strength concrete with a low water-to-cementitious ratio.


Construction Engineering Australia • May 2019

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UP TO 10% PRODUCTIVITY BOOST Construction that focuses on most of a structure being built from prefabricated components manufactured off-site in a factory, has been suggested to improve productivity by up to ten percent. Yet, many contractors continue to focus on maximising margins rather than improving productivity. Time, cost and quality requirements come unstuck, with a focus on lowest prices, which frequently deliver longer construction programmes and less than optimal quality outcomes.

A SOLID TRACK RECORD With the first use of precast concrete in Australia dating back to 1904 for the Sydney Harbour Bradley’s Head Lighthouse, it is one of the oldest forms of prefab. Used initially in marine and civil applications, the use of precast extended into various construction industry sectors, offering a multi-disciplinary product range. Since World War II, precast concrete has played a large part in the improvement of construction productivity and in the production of better quality structures, boasting a range of architectural finishes. Today, the smart operators are continuing to realise the diversity and productivity improvements that precast delivers, while producing sustainable outcomes for communities. They are turning to total precast structures… a win-win solution.

NEXT LEVEL PRODUCTIVITY WITH TOTAL PRECAST Total precast structures are maximising the possibilities of precast to revolutionise productivity. Being used for many types of structures including apartments, parking structures, retail developments, educational facilities, offices and industrial buildings, total precast structures can combine architectural and structural precast concrete components to create sustainable structures. Total precast design can take several forms, including precast columns and beams with panelised cladding or load-bearing precast walls, precast floors, precast service cores and precast stairs. It’s no wonder that most public buildings like schools and convention centres, as well as high-rise residential buildings now specify precast concrete. Doing so combines the benefits of rapid construction with improved on-site safety for structures that are durable and robust, fire safe, energy efficient and architecturally advanced.


41X - A sustainable Melbourne icon created with precast concrete


Construction Engineering Australia • May 2019

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41X DELIVERS ON PRODUCTIVITY AND SUSTAINABILITY Prefabricated precast concrete manufactured by National Precast member, Euro Precast allowed Lyons Architecture to design a building that is as extravagant as it is durable. Proper design detailing, combined with precast’s highquality manufacturing process, allowed Lyons to make their mark for generations to come, through what is a timeless and historic contribution to the city.

“BubbleDeck precast floor panels and precast concrete columns reduced the need for formwork and maximised construction efficiency,” he explains.

In addition to its architectural intent, precast concrete was able to deliver construction efficiencies to the project – all important in a congested city location.

Lyons’ brief employed a range of sustainability initiatives that accounted for embodied energy, base building operational energy, transport, and waste. Striving to achieve carbon neutrality, Lyons joined forces with AECOM to develop solutions that took a holistic approach the building’s carbon cycle. Designed to achieve a net zero carbon footprint over its 30-year operating cycle, 41X was one of the first strata-titled commercial office buildings in Melbourne to target carbon neutrality.

The project’s precast package comprised 7,600m² of vertical precast, including precast fins to the east and west façades and external façade panels to the north, as well as internal lift, stair and service room panels. Euro Precast also manufactured 84 horizontal sunshades, 133 columns, and 6,200m² of BubbleDeck flooring across 230 decks for the project. Euro Precast’s Director, George Spiropoulos, says the use of precast concrete minimised onsite material and labour.

“Unique external precast concrete panels of complex geometry were integrated with high performance glazing as part of a complete energy efficient facade system.”

With 5-star Green Star and 5-Star NABERS Energy ratings, 41X exemplifies how prefabricated structures can have a positive impact on the development of their cities through cutting-edge and environmentally-responsible buildings.

Construction Engineering Australia • May 2019



ADELAIDE’S NEWEST ICON BUILT WITH GRC PENTAGONS Architectural rendering of the new Christian Brothers Centre of Innovation and Learning. The building incorporates 705 GRC pentagon panels.

PROJECT: CHRISTIAN BROTHERS COLLEGE - CENTRE OF INNOVATION AND LEARNING LOCATION: ADELAIDE, SA PRECASTER: ASURCO CONTRACTING CLIENT: CHRISTIAN BROTHERS COLLEGE ARCHITECT: SWANBURY PENGLASE BUILDER: MOSSOP CONSTRUCTION + INTERIORS ENGINEER: RICKARD ENGINEERING As one of Adelaide’s oldest private Catholic Schools, Christian Brothers College (CBC) prides itself on blending history with innovation. The College is welcoming the construction of a new Centre of Innovation and Learning that will become an icon in a city that is starting to be recognised for its unique architecture. With the campus founded in 1878, the buildings located on the college are of a more traditional architectural style. The new state-of-the-art Centre will add a contemporary aspect to the school and its façade, providing an uncompromising facility which will maximise the educational opportunities for boys. The three-storey building is a multi-disciplinary facility, containing music, art and science amenities and also hosting the main entrance to 52

Construction Engineering Australia • May 2019

the CBC campus. Innovating the educational experience, it will feature an ecological roof deck classroom and a purpose-built astronomy observatory. Multiple above-ground walkways will link the Centre to adjoining buildings, making it an integral part of the Senior Campus precinct. At the same time, it will open up the Western Courtyard’s previously underutilised space, providing ample undercover leisure and breakout areas for students. Lightweight precast Glass Reinforced Concrete (GRC) cladding was used extensively for the structure’s façade. Adelaide-based National Precast member Asurco Contracting manufactured 705 pentagon façade forms and the entry canopy on the south-west corner, as well as panels that extend down to street level.

TESSELLATED GEOMETRIC DESIGN According to architect Mr Kon Michael from Swanbury Penglase, the design process was complex. The design intent was based around a crystallised form, reflecting one of the many factors within the building itself – it’s multidisciplinary function. Mr Michael started with a basic configuration of various pentagon patterns. The irregular pattern was one of only 15 irregular pentagon patterns that can be geometrically tessellated. The pentagons are aligned to create a ribbon effect around its main southern street façade, which slowly expands and rises along the western façade and around the splayed curved corner. As well as providing a striking impact, the ribbon also serves to provide added heat protection to the interior spaces.

GRC PANELS DELIVER OUTSTANDING RESULT With many years of GRC manufacturing experience under its belt, Asurco Contracting collaborated with the architect, with assistance from façade engineer, Arup, to produce the façade components. Managing Director of Asurco, Des Pawelski, says the elements were manufactured from a slightly coloured natural Brighton Light cement finish. With an average size of only 1400 x 800 mm, the pentagons - some of which incorporate 3D shaping - were able to be installed by hand onto the underlying steel structure. “Precision of manufacturing accuracy was critical to ensuring that the shaping pentagons in particular, could be placed into exact position during construction without delay,” Mr Pawelski commented. “This was no problem for us,” Mr Pawelski commented. “We’ve had plenty of experience manufacturing GRC for many applications right around the country. In this case, we are particularly proud to be involved with a project that will continue to raise the standard for the Adelaide architectural scene”, he said. Mr Michael is delighted with the result early on. “What we’re seeing is what we expected in terms of my vision for the project. The natural material looks good," he said. "The western façade, which was installed earlier in the construction programme, is already showing a slight difference in the patina of each panel. They're almost starting to fade as one, which is what we expected. Indeed, it's exactly the look we were after from day one,” he explained. The result is a stunning complex crystallised geometric 3D façade that is making its mark on Adelaide’s architecture and leading by example in educational facilities. The project is due to be finished by Term 3 later this year. The GRC ribbon on Western facade of the new Christian Brothers Centre of Innovation and Learning.

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“The design process was an evolution. It was about trying to achieve a natural result while enabling the crystallised form, including 3D shaping using irregular pentagons to complement the very angular shapes of the adjoining matching coloured precast panels.” “We contemplated using another type of concrete product early on, which uses metal fibres rather glass. This was revised to GRC, to aid local manufacturing using elements that would better connect with the proposed shaped precast that was supplied for the project,” Mr Michael explains.





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Construction Engineering Australia • May 2019



NEW BOARDING HOUSE ON SOLID GROUND PROJECT: Prince Alfred College Boarding Facility LOCATION: Kent Town, Adelaide, South Australia PRECASTER: Delta Corporation CLIENT: Prince Alfred College ARCHITECT: Hames Sharley BUILDER: Sarah Constructions ENGINEER: PT Design With one of the largest boys’ boarding programmes in Adelaide and as one of Adelaide’s most prestigious private boys’ colleges, Prince Alfred College has welcomed a new $20 million boarding facility. Clear long spans of hollowcore precast flooring used in Prince Alfred College's new boarding facility enable speedy construction and early access below by subsequent trades


Construction Engineering Australia • May 2019

Prince Alfred College educates over a thousand boys and was established in 1867. Located on the edge of the East Parklands in Kent Town, the college’s primary campus sits on 9.8 hectares of spacious grounds. The new boarding facility expands the College footprint across The Parade West. Designed by architectural firm Hames Sharley, the five-level facility is spread over three wings with a central core linking the boarding facilities with the main campus. A private footbridge across The Parade West has also been constructed for safe and easy access between the two spaces. The new boarding house includes residential rooms and units, recreation space, a health centre, housekeeping and tutorial rooms. The project’s scope also includes a car park for up to 26 cars. A brief to offer premium accommodation with a level of homely comfort, while supporting academic and social development inspired the facility’s design. Existing site constraints along with environmental considerations determined the construction methodology and choice of materials.

HOLLOWCORE SPECIFIED FOR ITS LONG OPEN SPANS Ideal for its long spans, precast prestressed hollowcore flooring was originally specified for the project. Delta Corporation was chosen to supply 4,500 square metres of their proprietary 250mm deep Deltacore, which was manufactured by the company in its Western Australian factory.

With each plank measuring on average 9 metres long and spanning up to 11 metres, planks were able to span the full length of the structure, untopped. According to project engineer Samuel Case, Director of PT Design, approximately 375 square metres of the hollowcore flooring was installed each day. While other building materials caused delays on this project, the lost time was recovered due to just-in-time delivery and the speedy construction times offered by the flooring system. “Precast flooring was chosen not only because of its speed of erection, but also for its consistent spans, and the absence of mid-span propping of the floor. This allowed the builder to start installing services and stud framing to the floor space below at the earliest opportunity and without obstructions,” he said.

WORLD CLASS FACILITY SUPPORTING WORLD CLASS EDUCATION Darren Roylett, College Director of Boarding and Boys’ Education says the new boarding facility will provide boarding students with a world-class facility, to ensure their time at the College is filled with fond memories and outstanding achievements. “Our boarding program and culture is worldclass and it is exciting that our boarding facilities will soon be up to that standard,” he commented. Once the new facility is operational, the three existing boarding houses will be demolished to make way for more green space, car parking and improved pedestrian safety.


NARVA ALS RECHARGEABLE L.E.D HEAD TORCH RANGE Narva has launched its new ‘Advanced Lighting Systems’ (ALS) Head Torch range, providing users with convenient, hands-free illumination that’s suitable for a range of workshop, trade and leisure applications. There are two models available, both of which are worn with an adjustable head strap, allowing the wearer to maintain full mobility and the use of both hands, while benefiting from brilliant white light. The 71424 model features a high efficiency COB L.E.D which provides a generous 120 Lumens. At full output the charge will deliver 2.5 hours operating time or up to 5 hours if the unit is used at 50 per cent output (60 Lumens). Despite its long operating time, this head torch’s 3.7V 800mAh Li-poly battery can be recharged in between 2-3 hours via a USB lead or 240V adaptor, both of which are included in the purchase price. The 71424 torch features a 120-degree beam angle for increased field of vision and a lightweight design that sees it tip the scales at only 163g.


Construction Engineering Australia • May 2019

If additional light output is required, the 71462 variant delivers a number of powerful options. This head torch is equipped with two COB L.E.D’s that provide a clean and crisp 250 Lumen of output in a 120 degree angle flood beam; it also includes a high power L.E.D spotlight which delivers 150 Lumens and an amazing 60m of beam penetration. A third option is an Arc beam which comes courtesy of another COB L.E.D providing 120 Lumen. Depending on the beam selected, the 71426 will provide between 2.5 and 3 hours of continuous use, with the 3.8V 1600mAh Li-poly battery taking between two to three hours to fully recharge from empty. As with the smaller head torch, the 71426 is also recharged via a USB lead or 240V adaptor included in the pack. For added convenience, the 71462 is equipped with a motion activated sensor allowing the user to turn the head torch on without using the buttons – simply place a

hand in front closely to the front of the light. Although it produces an impressive output and several lighting options, this head torch only weights 200g, so will not be a burden on the user’s head or neck. Both the head torches in the ALS range are magnetised, so the torches themselves can be removed from the head strap and securely fixed to any metal surface if required. A glow in the dark locator also allows both torches to easily be found in diminished light.

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