Civil

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

Background The corrosion of reinforced concrete is a significant problem affecting concrete infrastructure, leading to deteriorating concrete structures around the world. Largely attributed to the corrosion of steel reinforcement, concrete structures built to last 50 to 100 years routinely need substantial repairs and rehabilitation during their service life. The continuous repair and rehabilitation of concrete … 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 The 500 meter (1600 feet) long outflow tunnel of the Strydom Dam developed severe leakage problems 45 meters (150 feet) below the waterline. Several attempts were made to repair the leaking concrete with repair materials from both Europe and United States. However, all attempts failed to stop the leakage due to tremendous hydrostatic water pressure. Solution In … 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