Volume 15 | Issue 2
THE CONCRETE WATERPROOFING MAGAZINE
700 WEST 8
Uncompromising quality WITH SHOTCRETE PLUS: Five Things More Important Than Price CEO Column Spotlight on China
THE ATLANTIS HOTEL BUILDERS COULD
THEY CHOSE KRYTON WATERPROOFING. Compared to membrane solutions, Kryton protects even better with time. Our self-sealing technology and comprehensive support system transform concrete into a permanent waterproof barrier. Short term, you’ll shave weeks off construction schedules, cut waterproofing costs by up to 40%, and build your footprint to the property line. Long term, you’ll avoid leaks, discoloration and costly callbacks. And have the peace of mind of an industry-best 25-year warranty. Kryton takes the risk out of concrete waterproofing.
700 West 8th in Vancouver, Canada
THINGS MORE IMPORTANT THAN PRICE Consider these points when selecting your concrete waterproofing product
Editor: Jillian Turner Art Director: Sarah Rippin Contributors: Ali Biparva Jackson So Kari Yuers Kevin Yuers Stephanie Thatcher
FEATURE ARTICLE 700 West 8th: Uncompromising quality with shotcrete
CEO COLUMN Kari Yuers asks: Can the concrete community unite to share the accumulated knowledge of the industry?
LAB & PLANT TRIALS From paper to pour - the R&D lab takes us through the Lab and Plant trials of a concrete mix design
Krystol® Magazine is printed by Kryton International Inc. 1645 East Kent Avenue Vancouver, BC, V5P 2S8 Canada www.kryton.com For information about this publication, email email@example.com or call 1.800.267.8280 or +1.604.324.8280 Copyright ©2012 Kryton International Inc. All rights reserved.
New Booth! New Distributors! New Contest! Will yours will be the next business featured on our website?
Ask a Kryton Expert
All about Ground Granulated Blast Furnace Slag
Regional Spotlight on CHINA
Five projects in China that are shining through
Volume 15 | Issue 2
CityCenter, Las Vegas used Krytonâ€™s Concrete Waterproofing System.
MORE IMPORTANT THAN PRICE Price is important. There is no getting around it. But price is seldom the most important part of a buying decision. If it was, then everyone would drive a Lada. When people purchase a vehicle, they first consider factors like carrying capacity, performance, design and reliability. For example, it makes no sense to buy a low-price car when what you really need is a truck. Price is considered only after a product is found to meet your needs. And even if you do just need an economy car, you are probably making a smarter decision by spending more to buy a Honda. This is generally the case when purchasing most products â€“ including concrete waterproofing. When selecting your concrete waterproofing product, consider these five points that are more important than price.
Probably the most important factor in your buying decision is going to be performance. The product must be capable of doing the job that you intend it to do. At the most basic level, this is not even negotiable. Spending less money to buy a product that does not do the job does not save you any money at all. In fact, it is a waste of money. At a higher level, it is usually worthwhile to choose a better performing product, even if the price is higher. Better performance will normally offset a higher price by providing other benefits, such as reliability and longer life. Sometimes you need to spend a little more to get a better product (and avoid leaks). 4
Using Kryton’s Krystol Internal Membrane saves you time on the jobsite because it combines the waterproofing and concrete pour in one step.
Products that save time are nearly always worth more than products that do not. The saying goes that Time Is Money, and that is true. In fact, on most construction projects, time can be worth a lot of money. Waiting for an old-style waterproofing installation can put your project behind the competition. You will see increased site costs, prolong project financing and possibly delay the realization of revenue from your project. Just as it is important to consider the final delivered or installed cost of any product, don’t forget to calculate the cost of waiting for installation to be completed.
No product or application can be perfect every time and there is always the possibility that you will need to ask the manufacturer to address a problem you are experiencing. This is when you find out who really stands behind their product and who does not. Anybody can say they provide a warranty, but a warranty is only as good as the actions taken by the warranty giver. A good manufacturer will be responsive and address your problem quickly and fairly. If you find yourself in this situation, you will want to be sure that you have chosen a manufacturer with an excellent history of warranty service. Someone who has been in business at least as long as their warranty period. A low-price manufacturer is very unlikely to be there for you when you really need them.
4. Service and Support
Do not overlook the value you get from a quality manufacturer who provides good service and technical support. There is an enormous difference between simply making concrete less permeable and actually building a completely waterproof concrete structure. Concrete structures are extremely complex assemblies of concrete and steel with varying degrees of consolidation, numerous joints, penetrations, and cracks. Making such structures water tight in the face of high hydrostatic pressure takes a high degree of skill, knowledge and experience. These are things that a low-price manufacturer is simply not able to provide.
Most people will only buy from someone they trust. Trust is so important that sometimes people will make a purchasing decision based on trust alone. On the other hand, if you cannot be sure of getting what you are paying for, then a purchase is not a good deal no matter how low the price. Trust touches on each of the factors mentioned above. You must trust that the product will perform and save you time as claimed by the manufacturer. Be sure to choose a reputable manufacturer that is open and forthcoming with independent proof of their performance claims. You must trust that the manufacturer will be there to stand behind their product warranty. Choose a manufacturer that has projects that have already outlived their warranty
period. You must trust that a manufacturer has the knowledge and experience to help you build a waterproof structure. Choose a manufacturer that has a dedicated staff of technical support people with plenty of experience in your type of project. Consider each of the factors above along with the price to calculate the true cost of your purchasing decision. What you are ultimately going to determine is the overall value that each of your choices would give you. Naturally, you should choose the option that gives you the best and greatest value. And it is not necessarily the one with the lowest price.
Volume 15 | Issue 2
Waterproofing was essential for 700 West 8th’s underground parking.
700 west 8th
Uncompromising quality with shotcrete
VANCOUVER, BRITISH COLUMBIA, CANADA | COMPLETED 2011
Vancouver, Canada, is often hailed as one of the most beautiful and liveable cities in the world. On the edge of the Pacific Ocean and nestled against the Rocky Mountains, there is limited space to build and it is in great demand. When it comes to developing premium residential property, developers must build quickly without compromising quality, and maximize space in tight locations. These were the challenges for one of Vancouver’s latest premium developments: 700 West 8th. Completed fall 2011, this 4,680 sq. m (52,000 sq. ft.) development was designed by Henriquez Partners Architects and has 128 units arranged over 19 floors. A mix of one, two and three bedroom units, the development features condos, townhouses and penthouses. Owner/developer Westbank Projects Corp. appointed award-winning
McFarlane Green Biggar Architecture + Design to ensure the homes at 700 West 8th feature a top quality finish, setting 700 West 8th apart from the competition. To complete the development, the team had to overcome some significant site challenges and work to a tight deadline. With quality and corporate reputation paramount, Westbank and contractor ICON Pacific turned to the experts at Kryton International Inc. to ensure high quality, leak-proof construction of the development’s below grade parking facility. Waterproofing was essential for 700 West 8th’s underground parking. From the start, waterproofing was recognized as critical because of the site’s location in the path of continuous run-off at the base of a long steep slope starting some thirty blocks to the south and ending
Using Kryton’s KIM in the shotcrete as the concrete waterproofer helped us complete the project on time with a fast paced schedule.
The homes at 700 West 8th feature a top quality finish, setting 700 West 8th apart from the competition.
in False Creek. Another significant challenge to effective waterproofing was the tight location of the site, which would make waterproofing using surface-applied methods difficult. There was no time to waste: with a demanding schedule, shotcrete was the chosen construction method and an integrated system to provide waterproofing was required. That’s where Westbank and Icon Pacific worked with Kryton to find a system to meet their needs. On the Pacific west coast, structural shotcrete is fast becoming the preferred material in the construction of foundations, building tanks, and many other structures. Shotcrete is attractive because it saves time and money, with half the forming and equipment of regular cast-inplace methods. Kryton has an impressive track record of successfully applying its expertise to other local waterproof shotcrete projects, including residential developments by White Water and Onni at Ora in Richmond, and Aragon’s The Station St John’s in Port Moody. Many commercial and industrial projects also rely on shotcrete solutions and Kryton products for below grade tanking. For example, Kryton worked with Whitewater/Conshot on shotcrete around an electrical room and pits at a new IKEA store in Richmond; a 30 ft. high, two ft. thick wall at the Mount Pleasant Power Substation; and a cistern at popular visitor attraction, Van Dusen Gardens. The Quorum Group applying shotcrete at 700 West 8th for ICON Pacific is the latest example of constructing below grade parking without cast-in-place forms and externally applied membranes. There are two levels of below grade parking facilities, and Kryton’s Krystol Waterproofing Systems were used to tank the below grade concrete that was placed. Noting that traditional membranes can be a challenge because the high speed in which the concrete is forced out of the nozzle can displace or tear conventional surface-applied systems, the team opted for Kryton’s Krystol Internal Membrane (KIM) to ensure a leak-proof, high quality, waterproofing solution. KIM Admixture is integrated with the concrete mix at the ready-mix facility. This provided several clear cost and time advantages to the project team: • Eliminated on-site preparation for applying external waterproofing membranes • Increased jobsite productivity by having the waterproofing already in the shotcrete mix
Volume 15 | Issue 2
Features of 700 West 8th:
pails of Krystol Waterstop Treatment
pails of Krystol Waterstop Grout
700 A tight building footprint made waterproofing with surface-applied membranes difficult.
• Mitigated concerns over damaging external waterproofing membranes during the shotcrete application • Eliminated the need for detailing around soil nails KIM was used to tank over 700 cubic meters of concrete perimeter walls. In addition, Kryton’s Krystol Waterstop System was used on the vertical and horizontal construction joints to keep them as water tight as the shotcrete itself. For complete peace of mind, ICON Pacific and Westbank chose to use Kryton’s Krystol Assurance Program (KAP) to mitigate risk and provide a better end product for their shareholders. While all Kryton products are covered by a standard material warranty, the KAP is a performance-based guarantee with a robust, all-inclusive material and labor warranty combined with a comprehensive quality control service. The KAP guarantees Krystol-treated areas remain watertight for 10 years from the day the system is completed and dry. It also provided the team at 700 West 8th the enhanced quality control and supervision they were looking for: • Mix Design review • Construction detail review • Supervision during placement of KIM treated concrete • On-site training for Kryton’s Krystol 8
Shotcrete was the method used to construct the foundation at 700 West 8th.
Waterstop Joint System • Quality Assurance Vancouver’s housing market is dominated by condo-style developments and developers will continue to face the challenge of building quality product in a fast, efficient way to stay ahead of the competition. 700 West 8th is the latest development to show how opting for shotcrete and a best-in-class waterproofing solution can deliver the desired results. Bryan Tucker, VP of Construction for ICON Pacific, notes “Using Kryton’s KIM in the shotcrete as the concrete waterproofer helped us complete the project on time with a fast paced schedule. Due to our success on 700 West 8th, we have been using Kryton’s Krystol Waterproofing System on a variety of other projects in different parts of the lower mainland of BC.” ICON has since used the same shotcrete and waterproofing system for 60 West Cordova, 6th and Fir, and the Avra in White Rock, with more projects to come in the future.
cubic meters of perimeter walls
kilograms of KIM Admixture
DID YOU KNOW?
While Vancouver enjoys the mildest climate in Canada, it receives an average of over 125 cm (49.5 in.) of rain per year and December is typically the rainiest month. Vancouver’s sea breezes and mountainous terrain creates a series of microclimates with significant differences in rainfall measured within just a few kilometres. Some of Vancouver’s most torrential rains are caused by a meteorological phenomenon known as the Pineapple Express. This weather system carries a strong and persistent flow of atmospheric moisture and associated heavy rain from the waters around the Hawaiian Islands up to locations along the Pacific coast of the US and Canada.
KARI YUERS, PRESIDENT & CEO | KRYTON INTERNATIONAL INC.
It seems like every-other week you hear about the state of our failing infrastructure, the crumbled aftermath from a recent earthquake or litigation for shoddy construction. Concrete has been around for thousands of years, but over the last few decades, we have seen significant improvements and technologies that are changing how we build and what we build with concrete. While I write this, I am spending some significant time in Europe with my family. I can’t help but be amazed by the design and age of the infrastructure surrounding me. And although you see stone everywhere you look, there are exceptional concrete structures created by the artisans of the region today. Artisans are engineers and architects, and they have harnessed the knowledge past down over the centuries including an appreciation of art, beauty, form and design and fused it with cutting edge contemporary science and engineering to create outstanding structures. Somehow they seem to blend these
together to create new masterpieces for the 21st Century.
construction practices that saved thousands of lives in Chile.
Europe is home to internationally renowned bridge designers such as Professor Michel Virlogeux who has designed more than 100 bridges including the record breaking Normandy Bridge, the pre-stressed concrete Avignon Viaducts for the French High Speed Train, and the celebrated cablestayed Millau Viaduct, designed with architect Sir Norman Foster which has received several awards.
With so much successful concrete construction, it makes me wonder about what we can do as a concrete community to help developing nations and share the accumulated knowledge of the industry.
Looking back a couple years to 2010, within two months both Haiti and Chile were rocked by earthquakes. The earthquake in Haiti devastated much of the country’s buildings and infrastructure and killed more than 200,000; while the 500 times more powerful earthquake in Chile killed 800 people and left most of the country’s buildings standing. There were many reasons for the greater damage in Haiti but a couple of the contributing factors were better implementation of building codes and the execution of more disciplined
I’m new in the role of Chair of the American Concrete Institute’s International Advisory Committee, but I can see a great opportunity for the Institute to continue to foster relationships in the global concrete community that helps to add value. Our part in this will be to seek out and listen to what is needed and to find meaningful ways to deliver and connect this message. The concrete community has many global challenges, but there are passionate concrete professionals who are making a difference and would like to continue to contribute and give back to the global concrete community. This is an exciting time for the concrete industry. Kari Yuers, FACI Krystol® Magazine
Volume 15 | Issue 2
Kryton International Inc.’s Concrete Laboratory at Kryton’s Technical Headquarters, Vancouver B.C.
R&D: LAB AND PLANT TRIALS Concrete is made up of cement, water, aggregate, SCMs and admixtures. Before you can pour your concrete and build your structure you need to determine the quantities of the aforementioned components for your mix, this is your mix design. The mix design process starts on paper then moves to the lab for trial batches followed by field trials.
• Confirm components of mix • Determine the quantities
• Test for compatibility and make adjustments
The Lab Trial
The purpose of a lab trial is to test for compatibility and make adjustments to the mix design. Lab trials are beneficial because you can make adjustments to the mix design without being restricted by the number of trials you can perform; in the lab setting you can perform hundreds of trials if needed while in the plant you are usually restricted to one or two trials.
• Test in uncontrolled conditions, and adjust accordingly to wind and humidity variences
• Using all the data collected, the mix design is ready to be batched and used in the field
Measuring the compressive strength of a concrete cylinder in a lab trial
Lab trials are not the time for mix design experimentation or development, this work happens long before lab trials. Trials are performed to verify the properties of fresh concrete such as workability and finishing and adjust the mix design in order to obtain the best combination of fresh concrete properties. If possible it is best to use the same materials that will be used in the real world pour for the lab trial.
Lab Trials Versus Plant Trials
Even if you are able to use the same raw materials in your lab trial that will be used on-site there are still variables that cannot be duplicated from the field. These differences include: • Air temperature in the lab is always controlled (23° +/- 2° C) • The wind and humidity are controlled • Materials are used when ready – there is no delay in driving the concrete to the site • Timing is controlled – you can add materials when you want • Time of day variance is not present – on the jobsite properties such as temperature and moisture content of materials can change from morning to night Because of the above differences it is always good practice to perform a plant trial following a lab trial.
Plant trials verify that a concrete mixture meets design requirements prior to use in construction
Between lab and plant trials the types of testing are similar; most commonly slump, air content and compressive strength tests are performed on each batch of concrete over three days. The sampling frequency for some tests in plant trials is different than lab trials due to the volume of concrete produced. For example, samples of concrete are taken at the beginning, middle, and end point of the discharge from the mixer for testing. At a plant where concrete is batched in a central mixer and mixed in a truck mixer, testing should be performed on several different truck mixers to evaluate consistency.
Trials can prevent future problems on-site.
One of the main performance requirements in determining a suitable mix design is compressive strength. When a ready-mix company submits a mix design for engineering approval, strength test results from previous projects can be used in place of trial data, provided that the ready-mix company has a standard mix design and consistent material source that meets the project specifications. There are guidelines published by the American Concrete Institute (ACI) that engineers and concrete producers can use to determine appropriate concrete mixtures using statistical analysis of past field data or conducting laboratory trials. However, for new mix designs that require validation of mix proportioning, there is no substitute for trials either in a laboratory or in a plant. Testing will determine the compatibility of materials and can mitigate potential other problems. Krystol® Magazine
Volume 15 | Issue 2
KRYTON NEWS WELCOME TO OUR NEW DISTRIBUTORS
Al Jaber Structural Protection Co. Qatar 00974 5588 2371
JIT (Cambodia) Co., Ltd Cambodia www.jit.com.kh Kryton attended World of Concrete 2012 in January. We debuted our new booth complete with a simulated concrete column with a working leak.
Fernco Environmental UK & Ireland www.ferncoenvironmental.com
Organizarte, S.A Guatemala www.duratop.net
Al-HanDsya for Construction and Real Estate Egypt 002 02330 4664
tO FIND A DISTRIBUTOR NEAR YOU, PLEASE VISIT:
KRYTON.COM Kryton representatives at the International Concrete Repair Institute’s Spring Convention in Quebec City.
Upload Your Video and you could receive a FREE Kryton Technical Jacket, PLUS a chance to win a Kryton branded iPad! • It only takes 10 minutes! • Upload your short video • If your video is selected for our site, you will receive a Kryton Technical Jacket, perfect for the jobsite • PLUS One lucky video will win a new iPad, preloaded with all our Kryton Technical Information.
LATEST VIDEOS Visit www.kryton.com/reel for contest information or to submit your video. 12
CYPRESS MOUNTAIN CONCRETE PHILOSOPHER CENTRAL COAST WATERPROOFING Visit www.kryton.com/reel to view.
ASK A KRYTON EXPERT INSIGHTS FROM THE LARGEST CONCRETE PERMEABILITY TESTING LABRATORY IN NORTH AMERICA.
US E OF GG B FS (G ROU N D G RAN U LATE D B LAST FU R NACE S LAG) I N CONCR ETE M IXE S Supplementary cementitious materials (SCM) are commonly added to today’s concrete mixes. One common SCM is Ground Granulated Blast Furnace Slag.
Q: What is Ground Granulated Blast Furnace Slag (GGBFS)? A: Blast Furnace Slag is a waste product of iron and steel production and is used in the construction industry in a variety of ways. When granulated blast furnace slag is ground to an appropriate fineness, it is called Ground Granulated Blast Furnace Slag (GGBFS). It can replace between 20 and 80 per cent of Ordinary Portland Cement needed in concrete. Q: Why use GGBFS? A: The construction industry’s desire for cost savings, greener practices, and enhanced structural durability are driving factors in the adoption of GGBFS into more concrete mixtures. Based on the availability and grade of GGBFS, its price is approximately 85 to
100 per cent of the price of cement. As a rule of thumb, the production of one ton of Portland cement will produce about one ton of carbon dioxide emissions. Using GGBFS can lead to significant reduction in those emissions. More importantly, a key premise of green building is extending the long term performance and health of structures. Q: Does GGBFS always make concrete more durable? A: As long as the correct proportions are used when replacing Portland cement with GGBFS and the concrete is cured properly, the durability of the structure will be enhanced, leading to a longer life for the concrete. Nevertheless, studies found that properly designed and cured concrete containing GGBFS has lower permeability than Ordinary Portland Cement concrete. However, studies by Toronto University have shown that if
Alireza Biparva Research & Development Manager / Concrete Specialist at Kryton International Inc.
concrete is not adequately cured, adding GGBFS can increase the permeability. While GGBFS reduces permeability when used in the correct proportion, it is not the equivalent of a waterproofer. Under hydrostatic pressure, other Permeability Reducing Admixtures for Hydrostatic Conditions (PRAHs) are required to make concrete less permeable and more durable. Ask Kryton your concrete related questions! Email: firstname.lastname@example.org Krystol® Magazine
Volume 15 | Issue 2
KRYTON IN CHINA China’s construction industry saw significant growth, going from $0.7 trillion USD in 2007 to $1.8 trillion USD in 2011, and these numbers are expected to rise. China’s central government is planning to invest $160 billion USD in economy housing, that coupled with $1.03 trillion USD earmarked for infrastructure during 2011-2015 has the China construction market poised for continued growth. China’s concrete and cement products grew over 30% from 2006-2010 and is one of the building material industry’s fastest growing sectors. Kryton has maintained a consistent presence in China since 1980 and in 2000 the first Kryton China office was opened. As China’s construction industry has grown significantly over the past decade the need for concrete and related waterproofing and repair products has grown exponentially. Kryton continues to invest heavily in this market with two new hires for the Beijing office in 2011.
Shanghai Songjiang Villa
Sonjiang Villa is an upscale private residence located in Shanghai. The sprawling 1500 square meter (16,000 square foot) home sits on 0.6 hectares (1.5 acres) of land. Kryton’s Krystol Internal Membrane (KIM) and Krystol T1 & T2 Waterproofing System were used to waterproof multiple elements of the estate including the washrooms, balcony, exterior walls, swimming pool and sauna. Then the entire villa received an application of Hydrostop Sealer to protect the stone and maintain the original appearance of the high-end home. To date this was the largest application of Hydrostop Sealer in China.
Vancouver Forest is a unique 900-unit residential development designed to replicate a mini-Vancouver neighborhood complete with Vancouver-style housing, natural landscaping and lots of trees.
The project was won with collaboration between our Beijing office, our head office in Vancouver, and Canada Mortgage and Housing Corp (CMHC). In addition to the Kryton BC connection the project was designed by Vancouver based architects, Ekistics and features BC wood in the framing. Krystol Internal Membrane (KIM) admixture was used to waterproof the below grade areas of the homes. The team also used Kryton’s Krystol Waterstop System for joints to ensure a fully tanked basement. The homes are being built in phases with an estimated completion date of 2015.
CHINA DISTRIBUTORS Kryton has exclusive distributors throughout China. Contact the distributor in your region to find out more about Kryton’s waterproofing products or contact the Kryton Beijing office at www.krytonchina.com or by phone at 010-51285665. Shanghai Supers Industrial Co. Ltd (Anhui) www.sps100.com
Vancouver Pavilion The Vancouver Pavilion was constructed for the 2010 Shanghai Expo. The three-story pavilion was designed with green materials and showcased Vancouver’s transformation from Expo 1986 into one of the world’s most desirable cities today. Kryton’s Krystol T1 & T2 and Krystol Bari-Cote products were selected to waterproof the foundation and elevator pits of the Vancouver Pavilion. 73 million people visited the 2010 Shanghai Expo.
Beijing Haichuan Jincheng Science and Technology Ltd Co. (Beijing) 86 1051285658 Dongguan Caili Building Maintenance Technique Ltd. (Dongguan) www.cai-li.com Hunan Kaidun Waterproof Engineering Co. Ltd (Hunan) 86 73185862858 Suzhou GIFT Energy-Conservation Technology Co. Ltd. (Suzhou) 86 5126515758 Nanjing Yunlv Building Materials Co. Ltd (Nanjing) 86 02586562973 Dalian Kryton Waterproof System Co. Ltd. (Liaoning) 86 41183895657 Dynamic New Style Waterproof Building Materials Co. Ltd (Yantai) 86 5356649347 Shanghai Beiyuan Industrial Co. Ltd. (Shanghai) 86 2165256529
Guandi Hydropower Station The Guandi Dam is part of the large Guandi Hydropower Station on the Yalong River (a tributary of the Yangtze River) in Sichuan Province. The Guandi Dam has a generating capacity of 2400 MW and will generate power for the Sichuan Province area. The 168 m (551 ft.) tall dam is a gravity dam constructed using roller-compacted concrete (RCC). The entire face of the tall dam was coated with Kryton’s Krystol T1 & T2 surface-applied waterproofing system to protect the important structure from the high water pressure.
Chengdu Kaidun Underground Project Disease Prevent and Control Co. Ltd. (Sichuan) 86 2887076552 Tianjin Hong Ba Waterproofing Material Co. Ltd. (Tianjin City) 86 2228229431 Hangzhou Guo Dian Dam Safety Engineering Co. Ltd. (Zheijang) www.hzgdfs.com
Volume 15 | Issue 2
WHAT’S YOUR PLAN
WHEN THE CONCRETE AND THE ENVIRONMENT NEED PROTECTING?
ONLY KRYTON PROTECTS CONCRETE AND THE ENVIRONMENT PERMANENTLY. Kryton’s crystalline technology allows you to build right to the property line, so you have more space with which to create. Our superior products help bring even your most innovative designs to life. And our comprehensive system helps you avoid trade-offs between LEED certification and the realities of budget and schedule demands.
Kryton takes the risk out of concrete waterproofing.