Civil

Background The Toronto International Airport required waterproofing for a 855 meter (2,800 foot) long utility tunnel carrying vital electrical and communication lines 20 meters (66 feet) below grade. Solution Krystol Crack Repair System was applied against a significant hydrostatic pressure to stop inside running water penetrating through the utility tunnels cold joints. All cold joints were chiseled … Read More

Background When deciding on a product to use to waterproof your concrete, you need to look at many characteristics and aspects of the purchase, not just the price. A waterproofing company must be able to provide a product that performs in the manner intended, save you time in the construction phase, offer a superior warranty, … Read More

Background When the owners of this high-end home decided to build a swimming pool on the second floor, unique construction techniques were required. Shotcrete was chosen for design flexibility and ability to maximize the use of available space. Constructed above luxury living space, it was essential that the suspended pool be watertight and resistant to … Read More

Background The bridge chamber, situated 3 meters (10 feet) below the water table, was constructed out of high quality concrete. It started to have a problem with alkali reactions due to the aggregate in the concrete, and also had leaking problems. A new 30 centimeter (11.8 inch) slab constructed on the original slab also started leaking. Solution … Read More

Background The 126 km (78 mile) long water pipeline runs through a combination of mountainous terrain, swamps and dry desert conditions. KIM was used to waterproof and prevent corrosion of reinforcing steel. KIM was also applied to protect it against sulfate attack and guard the steel against water-soluble contaminants. Solution The pipes consist of a … Read More

Background The Revelstoke Dam on the Columbia River was one of the largest of its kind at 175 m (575 ft.) when it was constructed in the mid-80’s. To give you an idea of the enormity of the project, over two million cubic meters of concrete was used to build the dam, constructing a structure … Read More

Background In 1985 the 10.8 kilometer (7 mile) stretch of Hanzomon Subway was constructed several meters below grade. During initial construction a 1” (2.5 cm) rubberized sheet membrane was installed as specified by engineers to provide the waterproofing protection required. Within one year the membrane system had failed in several places and was allowing water to … Read More

Background The Cambie Street bridge spans an arm of the Fraser River that separates downtown Vancouver and Vancouver. Shortly after the bridge was constructed, lateral cracks developed full-depth through the deck slab. Extensive water leakage occurred through these cracks during periods of rain. Stopping the water from leaking was a concern for two reasons: the … Read More

Background At one mile long the Coatzacoalcos II Bridge was the longest single-span, cable suspension bridge in the world in 1984. The bridge spans a salt water channel of the Coatzacoalcos River in the Gulf of Mexico. Because of the high humidity, salts and very high levels of pollution in the area, the bridge required … Read More

Background Several water containment vessels on Oahu Island of Hawaii are susceptible to demanding conditions as the UV rays from the tropical sun quickly deteriorates membranes. As well, earthquakes and constant ground settling causes cracks which allow water to leak. Several waterproofing systems were previously attempted with no long-term success. Solution The Krystol T1 & T2 … Read More