Canadian Concrete Pumpers 2024

CANADIAN CONCRETE

PUMPERS

PUBLICATION MAIL AGREEMENT #40934510

2024 EDITION

Concrete: A foundation for learning Zero-emissions vehicles an important step to reaching net-zero Multi-Crystalline Enhancer (MCE) a patented, cost-effective means to improve concrete performance

CANADIAN concrete pumpers IN THIS ISSUE 2024

Message from the editor, Shayna Wiwierski........................................................................ 4

Published by: DEL Communications Inc. Suite 300, 6 Roslyn Road Winnipeg, MB R3L 0G5 Toll Free: 1.866.831.4744 President & CEO DAVID LANGSTAFF

Zero-emissions vehicles an important step to reaching net-zero................................... 5

Editor SHAYNA WIWIERSKI shayna@delcommunications.com

Concrete: A foundation for learning......................................................................................... 8

Advertising Sales Manager DAYNA OULION

CPCI roadmap to net zero: Delivering achievable targets.............................................. 10

Advertising Sales ROSS JAMES ESHAAN REVIS ANTHONY ROMEO GARY SEAMANS

Certification requirements for B.C. concrete pump operators take effect January 1..................................................................................14 Enhancing construction efficiency: The power of long-range wireless concrete sensors........................................................ 16 Multi-Crystalline Enhancer (MCE) a patented, cost-effective means to improve concrete performance................................................ 18 Revolutionizing concrete technology:

Production services provided by: S.G. Bennett Marketing Services Creative Director KATHLEEN CABLE Contributing Writer MICHAEL E. AYERS CHRIS CALVIN KRISTIN DISPENZA RAY LI SARAH PETREVAN ALEXANDRA SKINNER

Innovations for lightweight, high-flow, and environmentally-friendly solutions..... 20 Concrete pump operator certification enforcement deadline arrives for B.C. operators on January 1, 2024................................................ 22

Index to advertisers DY Concrete Pumps Inc. ...............................................................................................................3 ICC Distribution Group, LLC......................................................................................................IBC Pump Pro ........................................................................................................................................15 Putzmeister America, Inc. .........................................................................................12 & 13, 21 SuperForm Products Ltd................................................................................................................ 7 World of Concrete ....................................................................................................................OBC

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Canadian Concrete Pumpers 2024

©Copyright 2023. CPAC. All rights reserved.

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While every effort has been made to ensure the accuracy of the information contained in and the reliability of the source, the publisher­in no way guarantees nor warrants the information and is not responsible for errors, omissions or statements made by advertisers. Opinions and recommendations made by contributors or advertisers are not necessarily those of the publisher, its directors, officers or employees.

Publications mail agreement #40934510 Return undeliverable Canadian addresses to: DEL Communications Inc. Suite 300, 6 Roslyn Road Winnipeg, MB R3L 0G5 PRINTED IN CANADA | 12/2023

MESSAGE FROM THE EDITOR

Shayna Wiwierski Welcome to the 2024 edition of Canadian Concrete

Our journey through innovation doesn’t stop there. We

Pumpers, your trusted source for the latest develop-

delve into the world of cutting-edge concrete sensors

ments and innovations in the concrete industry across

provided by Giatec. Their long-range wireless concrete

our great nation. In this issue, we have assembled a

sensors are transforming the way we monitor and

collection of feature stories that exemplify the indus-

manage concrete structures. By providing real-time

try’s commitment to sustainability, safety, and cut-

data on concrete conditions, these sensors have the

ting-edge technology.

One of the central themes in this edition revolves around sustainability and environmental responsibility. We kick off with a spotlight on zero-emissions vehicles, a critical first step toward achieving net-zero emissions in the concrete sector. The Cement Association of Canada has provided us with an insightful

potential to revolutionize construction practices, ensuring long-lasting, high-quality results. The power of data-driven decisions is now at your fingertips.

In addition to these feature stories, this issue includes a wealth of information on the latest industry trends, best practices, and expert opinions. Our goal is to keep you informed and inspired as the concrete industry evolves.

piece on how this technology is making waves, reducing the carbon footprint and paving the way for a greener future in the construction industry. Discover how advancements in concrete transportation are making a significant impact on our environment.

In the quest for safer, more resilient infrastructure, we travel to Vancouver to explore a groundbreaking project undertaken by Heidelberg. A detailed profile takes

the contributors, experts, and professionals who have made this edition possible. Their dedication and innovation are shaping the future of the concrete industry in Canada.

Thank you for joining us in celebrating the progress and potential of the Canadian concrete sector. We hope this issue serves as a valuable resource and

you inside the construction of the seismically safer

source of inspiration for your own projects and en-

building for the Henry Hudson Elementary School.

deavours. We look forward to your feedback, sugges-

This project not only showcases the power of inno-

tions, and continued support as we continue to ex-

vation, but also emphasizes the importance of creat-

plore the ever-evolving world of concrete.

ing resilient structures, particularly in regions prone to seismic activity. Learn how technology and expertise come together to protect the next generation and our communities.

4

We would like to extend our heartfelt gratitude to all

Canadian Concrete Pumpers 2024

Shayna Wiwierski Shayna@DELCommunications.com

Zero-emissions vehicles an important step to reaching net-zero

By Sarah Petrevan, Vice-President of Sustainability, Cement Association of Canada Canada’s cement and concrete industry is taking significant steps to reduce its carbon emissions. In May 2023, the Cement Association of Canada and its partners launched Concrete Zero:

Lafarge deployed two all-electric trucks in British Columbia, signifying a shift towards sustainable transportation.

Canada’s cement and concrete industry action plan to net-zero. Our action plan shows that emissions reductions (based on a 2020 baseline) of 40 per cent by 2030, 59 per cent by 2040, and

net-zero by 2050 are possible using the technologies available today.

There are many levers needed to achieve net-zero cement and concrete by 2050. However, part of achieving true net-zero cement and concrete is ensuring that it can be delivered in a zero-emissions way. Currently, the transportation of cement and concrete accounts for six per cent of the industry’s emissions, for a total of 0.7 megatonnes of CO2 emissions per year. Our net-zero goal includes net-zero transportation by 2050, including targets for two percentage points each of emissions reductions by 2030 and 2040.

These may be small numbers in the A Volvo electric mixer truck used by Swerock in Sweden.

Canadian Concrete Pumpers 2024

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grand scheme of the entire industry, but without zero-emissions heavy-duty vehicles like dump trucks, concrete mixer trucks, and pump trucks, our industry will be unable to deliver on our 2050 net-zero goal.

Some manufacturers in Canada are beginning to recognize zero-emissions heavy-duty vehicles as an important signal of progress and a key step on the road to delivering net-zero concrete to customers.

Transportation is currently responsible for six per cent of the cement and concrete industry’s carbon emissions, with target for reduction in 2030 and 2040 ahead of net-zero by 2050.

For Joel Westin, president and owner of Bridgewater Ready Mix in Nova Scotia, purchasing zero-emissions vehicles is a priority as he integrates sustainability measures throughout his operations, including switching from General Use Cement (GU) to General Use Limestone Cement (GUL), but still a challenge in the North American market. One of his first purchases when he joined the company was a half-ton electric work truck, but he explained that “In Canada, right now, you cannot buy an electric mixer truck, dump truck, or pump truck.

I’m hopeful though that with the commitment by Mack Trucks North America to have 35 per cent of their sales be zero-emission vehicles by 2030, this will change.”

Originally from Sweden, Westin recently had an opportunity to tour Swerock’s operations in that country, see the work being done by Volvo with electric mixer trucks in the industry, and heard positive news on long-term costs savings.

“The upfront cost is two- to two-and-ahalf-times greater, but over the lifetime

Released in May 2023, Concrete Zero: Canada’s cement and concrete industry action plan to net-zero outlines the steps needed to achieve net-zero cement and concrete by 2050. Read the full report at ConcreteZero.ca/.

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Canadian Concrete Pumpers 2024

Joel Westin, president and owner of Bridgewater Ready Mix in Nova Scotia, with the company’s new electric work truck.

of the vehicle it’s more cost-efficient to go electric,” says Westin. “What that means though is that we need to align federal and provincial incentives and ensure they are available to businesses of all sizes so that as an industry we can reach net-zero.”

On the other coast, Lafarge Canada has also taken action deploying two all-electric Vicinity Motor Corp. (VMC) trucks in its British Columbia aggregates and ready-mix operations. Brad Kohl, president & CEO of Lafarge Canada (West), explained the benefits.

“The benefits of this electrification effort are twofold, delivering cost savings and contributing to a reduction in Scope 1 emissions on site,” says Kohl.

“Each VMC 1200 truck is estimated to reduce site emissions related to trans-

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portation by 6200kg of CO2 annually, showcasing Lafarge’s firm commitment to sustainability and its role in combating climate change.”

The transition to cleaner zero-emission heavy-duty vehicles will take time, Canada’s cement and concrete industry is demonstrating that demand for zero-emission heavy-duty vehicles is only growing. While the total emissions of transportation may be comparatively small, the opportunity for it to have a significant impact

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important step. n Canadian Concrete Pumpers 2024

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Heidelberg Materials, previously known as Ocean Concrete or Rempel Bros., delivered to the Henry Hudson school project for Heatherbrae Builders Co. Ltd.

CONCRETE: A foundation for learning

By Kristin Dispenza, AOE With a variety of low-carbon strategies rolling out simultaneously across the industry, there is a need to avoid prescriptive design and shift to performance-based design. Recently, the Vancouver Project Office (a part of the Vancouver School Board in Vancouver, British Columbia) made the decision to switch from a prescriptive to a performance-based approach on one of its projects, achieving an effective—and authentically sustainable—solution.

Construction began in October 2022 on a new, seismically safer building for the Henry Hudson Elementary School in Vancouver’s Kitsilano neighbourhood. The three-storey school is being built on the west side of the existing site. Cost for the project is $40 million.

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Canadian Concrete Pumpers 2024

Pursuing lower global warming po tential Project specifications called for a minimum portland cement reduction in the concrete mix.

“On the west coast, however, sourcing recycled content and admixtures can mean importing them. For example, we don’t produce a lot of steel to provide us with local slag,” said Jason Gartshore, project manager, Heatherbrae Builders Co. Ltd. Shane Mulligan, area technical sustainability manager at Heidelberg Materials North America, says that any time they see specifications that have the objective of obtaining a low-carbon concrete, they take that as a cue to have a conversation with designers and owners to examine the larger goal and use an equivalent—and performance

based—approach, so as to address the true target, which is lower global warming potential, or GWP. Based on recommendations from Heidelberg Materials representatives and Heatherbrae, the Vancouver Project Office reviewed and adopted a new type of concrete for use on the project: EvoBuild™ low carbon concrete, which is manufactured by Heidelberg Materials. EvoBuild exceeded the overall sustainability requirement and reduced GWP. The EvoBuild product range is divided into four levels – Bronze, Silver, Gold, and Zero. By offering this flexibility, a concrete mix can be selected that balances with other project variables, such as schedule and budget. Each category level offers a carbon reduction percentage that falls within a specified range.

EvoBuild Bronze offers 30 to 50 per cent reduction; Silver offers a 50 to 70 per cent reduction; Gold offers a 70 to 85 per cent reduction; and when using EvoBuild Zero, a Heidelberg Materials sales representative works with the building team to customize a mix design. The specified carbon savings levels for each of the four levels is measured against the Canadian Ready-Mixed Concrete Association industry-wide EPD that was released in January 2017.

For the Henry Hudson Elementary School, EvoBuild Bronze was used.

Low-carbon concretes are pumpable concretes Approximately 2,700 metres of concrete were placed in the building’s foundations and slabs, with the majority being pumped. Floor area of the building is more than 5,200 square metres.

The goal with EvoBuild low-carbon concretes is to achieve the same perfor-

PSI Concrete Pumping is shown pumping the Evobuild mixture for a suspended slab.

mance as traditional concrete in terms of strength, pumpability, and finishing.

Increased use of SCMs like fly ash can not only reduce the carbon footprint of the concrete, but also improve how the mix performs in certain applications.

“It is our intention that all EvoBuild Bronze mixes should have the same pumping, placing, finishing, and

strength characteristics as our standard mix designs,” said Byron Young, sales manager, Heidelberg Materials North America.

“Heidelberg Materials demonstrated the ability to manage supply chain and reduce global warming potential, meeting the spirit rather than the letter of the specs,” said Gartshore. n

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The Hodder Avenue Underpass in Thunder Bay, Ont. is the first structure in North America to incorporate precast Ultra High-Performance Concrete (UHPC) pier caps and pier column shells, high-performance precast concrete box girders, parapet walls and approach slabs. The precast prestressed solution used concrete efficiently to enhance the structural performance, long-term durability, and lifespan.

CPCI roadmap to net zero: Delivering achievable targets

By Ray Li, CPCI Technical Representative (Western Canada), staff liaison for the CPCI Sustainability Production and Safety Committee Decarbonization has become a top priority for the concrete industry in Canada. The Canadian Precast/Prestressed Concrete Institute (CPCI), along with the allied concrete associations, has set a goal of reaching net-zero carbon emissions by 2050. As of 2022, there are approximately three-million tonnes of precast products produced annually in Canada. Over the next 30 years, the precast concrete industry in Canada is expected to grow significantly as the demand for new prefabricated infrastructure, commercial, and residential structures continue to increase. If no action is taken now, carbon emissions will continue to increase with industry growth.

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Canadian Concrete Pumpers 2024

The CPCI is developing a net-zero roadmap in consultation with industry partners and regulators. This roadmap outlines the steps necessary for the precast concrete industry to achieve net-zero by 2050. This roadmap aligns with the net-zero roadmaps developed by the Cement Association of Canada (CAC) and the Global Concrete and Cement Association (GCCA).

The Canadian precast net-zero roadmap will have a multipronged approach to reducing carbon emissions. The goal is to examine the entire life cycle of a precast concrete structure and accurately account for its global warming potential (GWP).

The Putman Family YWCA in Hamilton, Ont. is the first mid-rise Total Precast Passive House in North America. The energy performance has received the Passive House certification, which requires 90 per cent thermal energy savings and reduces greenhouse gas emissions by 40 per cent. The project demonstrates precast concrete is the solution to create affordable, durable, and net-zero homes for Canadians.

The roadmap will focus on four key areas for carbon reduction: • Optimize Precast Concrete Production – Improve production efficiencies at the manufacturing plant level and select low-carbon input materials such as Portland Limestone Cement and other Supplementary Cementitious Materials (SCMs) to optimize the carbon reduction from cradle to gate.

• Optimize Design & Construction – Improve the design of precast concrete structures to use less concrete and energy during construction. Optimize building design to exploit the efficiencies of precast concrete elements to minimize carbon emission during the use phase of a structure.

• Quantify and Account Carbonation – Quantify the natural ability of concrete to absorb CO2 from the atmosphere throughout its lifecycle.

• Carbon Capture, Utilization and Storage (CCUS) Technology – Discover opportunities to implement existing and emerging CCUS technologies.

A steering committee will be formed that includes precast

These net-zero energy precast concrete homes were built for Habitat for Humanity in Edmonton, Alta., which is a not-for-profit organization that builds affordable houses for low-income families.

Durable, resilient, affordable, energy-efficient homes are possible through precast hollowcore floor planks and insulated precast wall panels. Combined with solar cells and geothermal systems, these homes are able to achieve net-zero energy use.

concrete manufacturers, academics, government agencies, and members of the AEC community. The steering committee will oversee the working groups in charge of the four key areas and track the industry’s progress toward net-zero milestones.

Precast concrete will be vital to Canada’s development as we strive toward a more resilient and sustainable built environment. The Canadian precast industry is committed to net-zero while still delivering quality products that governments and clients can depend on. n Canadian Concrete Pumpers 2024

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Certification requirements for B.C. concrete pump operators take effect January 1 Register for your Certified Concrete Pump Operator (CCPO) Certification to meet this deadline

By Alexandra Skinner As of January 1, 2024, all concrete pump operators in British Columbia are required to obtain certification in alignment with recent amendments to B.C.’s Occupational Health and Safety Regulation.

Michael Paine, manager of consultation and education services at WorkSafeBC, emphasizes the significance of these regulatory changes.

“Operating concrete pumps involves complex machinery and is considered a high-risk activity, capable of causing severe injuries — or even fatalities if not done correctly,” says Paine.

“Our primary goal is to ensure that concrete pump operators receive the necessary training to protect themselves and others.”

About certification The Certified Concrete Pump Operator (CCPO) certification is a professional accreditation that requires operators to demonstrate both theoretical knowledge of concrete pump operations through a written multiple-choice exam and an onsite assessment by way of a practical exam that requires the operator to demonstrate competency in the field.

The CCPO certification program currently offers certifications in five pump types:

• Truck Mounted Boom Pumps – 41 metres and under • Truck Mounted Boom Pumps – over 41 metres

Workers: How to get certified Workers have the right to be trained and the right to a safe workplace.

Certification can be obtained through the BC Construction Safety Alliance (BCCSA), which is currently the only authority issuing certifications to concrete pump operators in the province.

To obtain your certification: 1. Visit the Certified Concrete Pump Operator (CCPO) certification website 2. Read and understand the certification policies and fees 3. Take and pass your written exam 4. Within 12 months, take and pass your practical exam 5. Receive your Certified Concrete Pump Operators (CCPOs) identification card

• Tower Placing Booms

Certification identification cards must always be on hand when operating equipment. The card will be re-issued every five years upon completion of recertification requirements.

• High-Pressure Line Pumps (over 1,233 psi)

Employer obligations and benefits

• Low-Pressure Line Pumps (1,233 psi & under)

Employers are responsible for worker safety and ensuring

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Canadian Concrete Pumpers 2024

workers who operate concrete pumps are trained and certified.

Since 2012, there have been 351 injury claims at job sites around the province involving concrete pump trucks.

“Employing qualified and certified concrete pump operators will significantly lower the risk of incidents, injuries, and fatalities — ensuring that everyone on the site returns home safely at the end of the day,” Paine says.

It is important that all employers, owners, workers, and contractors who work with concrete pumps review the new reg-

ulatory requirements to ensure their work practices are compliant. As of January 1, 2024, WorkSafeBC prevention officers will inspect worksites and ask pump truck operators to provide proof of their certification documentation.

More information For more information about the CCPO certification process, policies, and exams, visit the BC Construction Safety Alliance’s certification website at www.ccpo.ca/index.php.

For more information on WorkSafeBC’s regulatory amendment, visit worksafebc.com. n

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Enhancing construction efficiency The power of long-range wireless concrete sensors

Left: Long-range wireless concrete sensors contribute to cost savings, increased productivity, and the longevity of concrete structures, marking a significant advancement in the construction industry.

Above: Giatec SR3 with WiFi.

In the rapidly evolving landscape of construction, the integra-

• Environmental factors: Varying temperatures and humidity

tion of advanced technologies has become a cornerstone for

levels can significantly impact the concrete’s curing process,

ensuring project success. Among the array of technological

affecting its overall quality and durability.

advancements, long-range wireless concrete sensors are revolutionizing the way construction professionals monitor and manage concrete on project sites of all scales. Larger project sites pose several challenges:

Solving these challenges can be as simple as implementing a long-range wireless remote monitoring system to provide comprehensive insights into the concrete’s performance across the project site. With real-time data collection, these

• Scale and accessibility: Large-scale project sites often cover

sensors streamline decision-making processes and enhance

extensive areas, making manual monitoring challenging to

project management efficiency. Their wireless technology

ensure uniformity in the concrete’s curing process.

and easy installation allow for hassle-free deployment even

• Data collection: Collecting and managing data from various points across the site can be a cumbersome task, especially when dealing with multiple sets of information and parameters.

in challenging environments. All pulled together, this system can prevent potential setbacks through early detection of issues while promoting improved quality control and mitigate risks during the concrete curing process. Simply, longrange wireless concrete sensors contribute to cost savings,

• Real-time monitoring: Ensuring real-time monitoring across

increased productivity, and the longevity of concrete struc-

the entire site is crucial for promptly identifying anomalies or

tures, marking a significant advancement in the construction

deviations from the desired concrete properties.

industry.

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Canadian Concrete Pumpers 2024

Above: Long-range SmartHub Illustration with SmartHub+SR3.

Right: Long-range SmartHub+SR3 on Rebar.

APPLICATIONS OF LONG-RANGE TECHNOLOGY Cold weather concreting Low temperatures can impede the curing and hardening process of concrete. Contractors must be vigilant when placing concrete in cold temperatures to ensure it satisfies quality control requirements. Having field personnel collect sensor data during winter is not always a sustainable procedure, especially if the elements are long distances apart. Therefore, remote real-time concrete insights are a game changer.

Highway, tunnel, and bridge structures Highways connecting cities and structures such as tunnels and bridges tend to be located remotely where there is little network infrastructure. This is challenging for real-time monitoring as bridge piers and columns are often spaced apart at significant distances. A real-time long-range system would be valuable in retrieving data from the elements while also helping DOTs, MTOs, and other agencies across the globe to make quick decisions and open roads on time.

High-rise buildings Real-time monitoring is essential in high-rise projects to guarantee structural integrity and safety, especially during post-tensioning and formwork removal. Long-range remote monitoring allows for data collection from multiple floors while also allowing customers to stress cables quickly, reducing time on the project schedule.

How to enhance efficiency?

While full-featured long-range technology is still rare in the concrete industry, one such available option is Giatec’s SmartRock® Long Range (LoRa). Equipped with the same cutting-edge wireless technology, 24/7 remote monitoring capabilities, and seamless installation as the infamous SmartRock sensors, the LoRa version has the added ability to collect data within an impressive range of up to 1,000 feet (300 metres). Paired with the SmartHub™ Long Range, this system is invaluable to teams who need real-time insights into hardto-reach places and hazardous projects. With access to accurate and timely data, these sensors help mitigate the risk of concrete-related issues and failures on large sites, ultimately reducing the potential for costly rework or project delays.

As the construction industry continues to prioritize innovation and sustainability, the adoption of long-range wireless concrete sensors is poised to play a pivotal role in shaping the future of construction practices worldwide. n Canadian Concrete Pumpers 2024

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Multi-Crystalline Enhancer (MCE) a patented, cost-effective means to improve concrete performance

By Michael E. Ayers, Ph.D.

Concrete is widely used for highways, streets and roads, tunnels, airport pavements, and numerous other infrastructure applications. With proper design, construction practices, and quality materials, these elements can, and do, achieve useful service lives exceeding 100 years. A significant amount of research has been, and continues to be, devoted to improving the engineering properties of concrete for ease of placement, strength enhancement, long-term durability, economy, and so on. Improved methods of determining the engineering properties of aggregates, cement, chemical, and mineral admixtures and concrete, as a whole, are in widespread use and continue to be developed in support of a more performance-based approach to mixture design.

The International Chem-Crete Company has developed two products that substantially improve the engineering properties of both fresh and hardened concrete. PAVIX® CCC-100 (PAVIX) is a dual-crystalline concrete sealer that can be applied to both freshly placed (green) and hardened concrete.

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Canadian Concrete Pumpers 2024

MCE® (multi-crystalline enhancer) is added to the concrete at the time of batching and is thoroughly mixed and distributed throughout the concrete mass.

PAVIX is intended to prevent surface water intrusion which has been shown to be the most critical factor in concrete scaling, spalling, freeze/thaw damage, and other moisture-induced surface distresses. PAVIX has the advantage of allowing outgassing of water vapour from the concrete surface while limiting the liquid water intrusion to negligible levels. The following photo illustrates the ability of PAVIX to repel water at the surface of the concrete.

Of particular importance in northern climates is that PAVIX has been shown to significantly reduce ice adhesion. In effect, this means that less deicing salts and brine are required for snow and ice events. A recently completed study has shown that ice adhesion for PAVIX-treated concrete is reduced approximately 94 per cent compared with untreated concrete. The following

mix is shown in the below figure.

The permeability of the overall concrete mass was reduced by five orders of magnitude essentially rendering the concrete impermeable to water and dissolved chemicals.

photo illustrates the long-term effects of PAVIX treatment on snow and ice build-up.

PAVIX has numerous certifications and endorsements worldwide and has been used in over 64 countries. Extensive testing has been conducted by independent laboratories and agencies in order to assess the performance of the material under a wide range of conditions. PAVIX can be applied to virtually all concrete surfaces to remediate moisture-related distresses and to reduce ice adhesion.

MCE is an intermixed multi-crystalline enhancer added to fresh concrete during the batching and/or mixing process to enhance the performance, durability, and sustainability of Portland Cement Concrete (PCC) including design mixes with Portland Limestone Cement (PLC). A number of studies and field trials have assessed the benefits of MCE in regards to strength enhancement, reduction in drying shrinkage, reduction in permeability, increased workability, and many other beneficial effects.

A recent large-scale field trial assessed the improvements in the engineering properties of a concrete paving mix used for a “roll-on” bridge deck. The concrete was batched by a local ready-mix plant with the MCE being introduced into each truck by a stand-alone metered pump. The concrete was delivered to the job site by ready-mix trucks and then pumped onto the deck. Extensive sampling and testing have shown the significant benefits of MCE use on the engineering properties of the mix.

A comparison of the MCE enhanced mix with the non-dosed

International Chem-Crete Company and GOMACO International Ltd. recently exhibited at the United Kingdom National Highways Conference in Birmingham, UK. Merging advancements in concrete materials and the most technologically advanced paving equipment have very significant impacts on long-term pavement performance, sustainability, and carbon footprint.

The following is an excerpt posted on LinkedIn by GOMACO International Ltd.; “International Chem-Crete introduced its most recently patented products to the UK market at the Highways UK 2023 Conference in Birmingham. Chem-Crete MCE® is a multi-crystalline water proofer for concrete pavements that provides many performance benefits to concrete and reduces common, environmental-associated distresses. International Chem-Crete and Gomaco, the worldwide leaders in concrete pavement technology, work closely together to ensure that MCE concrete design mixes with their paving technology resulting in superior concrete pavement and other concrete infrastructures (road and airport pavements, safety barrier, slot drain, water channels, bridge decks, dams, canals, runways, etc). Both companies share a booth at the Highways UK 2023 and 2024 exhibitions to allow visitors to better understand how the combination of GOMACO paving products & ChemCrete MCE multi-crystalline water proofing technology reduces maintenance and increases the life of concrete when used for surface transport!”

For more information, please contact Mike Robinson at 250-801-8046, or at 4101 10th Street, Des Moines, IA 50322.

He can be reached by email at Mike.Robinson@ICCDistributionGroup.com. n

Canadian Concrete Pumpers 2024

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Revolutionizing concrete technology Innovations for lightweight, high-flow, and environmentally-friendly solutions

By Chris Calvin, Director at Lightweight Concrete Solutions

Figure 1.

Figure 2.

It has been a year since the last story was published in the Canadian Concrete Pumpers and our technologies continue to evolve for so many applications.

Floating concrete With the right blend of our technologies, we can make our concrete float with wet/plastic density lighter than water.

That way, should the concrete get completely saturated, it will still float. This mix in Figure 1 is considered structural. However, we continue to work on it as I want our floating mix to achieve 35MPa.

High-flow concrete In Figure 2, the mix you see is a high-flow, high-strength mix design. It was developed to make precast concrete. In Figure 3, you can see that with the right combination of reinforcement it can bend under load and not break. The panels seen were made at Lafarge Precast in Winnipeg. This mix design would be an excellent choice for structures that are in earthquake zones. This panel is only 75mm in thickness and you can see how much it deflects from the piece of wood we used to show what it was when it was flat.

In July of this year, we had Ontario’s Minister of Infrastructure

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Canadian Concrete Pumpers 2024

Figure 3.

come visit us. Minister Surma was telling us that the Ontario Government is looking at new technologies like ours that will have an extended lifespan and not require as much maintenance, plus are far more environmentally friendly.

In Figure 4 I was showing Minister Surma one of our lightweight shotcrete mix designs. It has incredible bond strength, is a fraction of the weight of a conventional shotcrete mix, plus reduces CO2 emissions by a minimum of 20 per cent.

We also made a mix design that is a joint venture between us and CorTuf UHPC, which is the only UHPC in the world that is lightweight. We have been working with CorTuf UHPC now for approximately three years and have made incredible progress in blending our two global game-changing technologies with compressive strengths that easily surpass 120MPa.

CorTuf UHPC and CorTuf Lightweight UHPC Shotcrete In Figure 5, CorTuf UHPC is being shot for the first time. Other UHPC videos that are out there now do not show what is key, which is the ability to layer it in one single pass. As anyone in shotcrete knows, this is very important. Plus, the shotcrete has to be wet enough that it can be wrapped around the reinforcement.

Figure 4.

Figure 5.

We have been very busy and our technologies and combined technologies continue to evolve.

In closing, our lightweights all internally cure and achieve densities lighter than anyone has seen before.

They can also be used in any structural application, are very environmentally friendly with CO2 emission reduction of a minimum of 20 per cent, and they also do not need to be pre-soaked longer than five minutes. n

Minister Surma and the Lightweight Concrete Solutions crew.

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Concrete pump operator certification enforcement deadline arrives for B.C. operators on January 1, 2024 Effective December 1, 2021, amendments to the BC Occupational Health and Safety Regulation by WorkSafeBC required the mandatory certification of all concrete pump operators in the province. Those regulations become enforceable on January 1, 2024. On that day it will be illegal for any uncertified workers to operate a concrete pump and illegal for any company to employ them.

The BC Construction Safety Alliance (BCCSA) launched its Certified Concrete Pump Operator (CCPO) program four years ago as a voluntary certification, mindful that the province’s concrete industry supported mandatory certification.

“The fact that anyone with a Class 3 driver’s license could operate a concrete pump of any size contributed to several high-profile incidents and fatalities,” says Ammar Kavazovic, director of programs & initiatives for the BCCSA. “We requested that WorkSafeBC make the certification mandatory, knowing that the industry was fully behind the professionalization of this operating discipline.”

The BCCSA is the only WorkSafeBC-approved concrete pump operator certification program offered in the province. The certification incorporates a written exam common to all applicants and a practical proficiency exam for five specialized certifications: • Truck-mounted boom pumps (over 41 metres); • Truck-mounted boom pumps (41 metres and under); • High-pressure line pumps (>1,233 psi); • Low-pressure line pumps (1,233 psi and under); and • Tower Placing Booms.

Operators who are certified for truck-mounted boom pumps

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Canadian Concrete Pumpers 2024

(over 41 metres) are also certified to operate truck-mounted boom pumps (41 metres and under) — and both are certified to operate low-pressure line pumps. Operators who are certified for high-pressure line pumps are also certified to operate low-pressure line pumps. Only operators who are certified for tower placing booms may operate them.

CCPO certification is valid for five years, at which time an operator must write an updated written exam. A practical exam is not necessary for any operator documenting at least 1,000 hours of related experience during their certification.

As the certifying body for the program, the BCCSA offers no CCPO safety training. However, optional training is available through several partner organizations, including Concrete BC, the Operating Engineers, and the American Concrete Pump Association.

The CCPO program has achieved excellent industry traction.

Concrete BC, for example, now requires that all persons who take its Concrete Pump Operator Safety Training courses complete the CCPO written exam before receiving their Concrete BC certificate of completion. As of mid-2023, the CCPO program tally includes completion of 449 written exams and 249 practical exams, with 150 CCPO certificates awarded.

“We know there are still a number of operators in the industry who need to achieve certification before January 1 so they can continue to work in their trade,” Kavazovic says. “If you’re an employer, check with your employees to make sure they’re certified. If not, register them for the CCPO program. If you’re an operator, our recommendation is to complete the written exam as soon as possible so you can schedule a practical proficiency exam in your area of specialty before the regulatory deadline.”

For more information, or to register, visit www.ccpo.ca. n

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