Cast-in-Place

Background Concrete structure is 30 meters long, 7 meters wide and 6 meters deep (89, 23 and 20 feet respectively). At first the contractor opted to use a competitor’s product for the base slab. However, considerable cracking resulted. In 1997, The Crystal Group was contracted to provide Kryton’s Krystol waterproofing materials to repair the cracked slab. Construction continued … Read More

Background The Horka Dam built in 1985 had water leakage problems in the maintenance tunnels well below grade. The maintenance tunnels required waterproofing for 1550 cubic meters (55,000 cubic feet) of existing concrete. Solution Krystol T1 & T2 Waterproofing System were used on existing below grade concrete. Since the Krystol application in 1997 no leaks or wet spots … Read More

Background A 3,250 square meter (35,000 square foot) parking deck raft slab required waterproofing and corrosion resistance. The raft slab was on grade but the property is situated below sea level. Engineers were concerned about wicking water and subsequent corrosion of reinforcing steel. As well there were virtually no joints or construction breaks to alleviate stress and … Read More

Background In the mid-1990's, the Annacis Island Wastewater Treatment Plant upgraded its largest treatment plant from primary treatment to secondary treatment. The upgrade was a significant investment valued at $470 million CDN, requiring new concrete construction and improvements to existing infrastructure. Krystol Internal Membrane (KIM) Admixture was specified for waterproofing base slabs and walls in … 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 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

Waterproofing the Largest Volume Building’s Expansion Under a Single Roof in 1983 Background The Boeing Everett Factory is the world’s largest volume building under a single roof, measuring in at over62-acres indoors. Located in Everett, Washington, the sheer magnitude of the center expressed Boeingto the world and become an icon in the aviation industry. The … Read More

Background In 1976 the City of Langley constructed 4 large reservoirs. The shear size of the water containment structures puts enormous pressure on the concrete infrastructure. Krystol was used for only one of the four tanks as three of the competitor’s product systems were used on the remaining tanks. Solution The Krystol T1 & T2 … Read More