Transport

Background Air Entrained Concrete In September 2003, Calgary Transit constructed an 92,666 ft2 (8,609 m2) addition to their bus barn facility involving 1,290 cubic meters of both air and non-air entrained abrasion resistant concrete. Abrasion resistant concrete was specified to withstand heavy wear of bus traffic. The bus barn entrance aprons specified 4% to 7% … Read More

Background Different sections in the stations for the new subway line in Shanghai faced problems due to sulfate attack, chloride penetration and corrosion. An effective waterproofing system and a watertight corrosion free concrete solution were needed to overcome these problems. The system had to provide cost effective quality and low cost maintenance while performing without … Read More

Background A major concern to engineers working on the St. Kilda Beach parkade is the structure's proximity to salt water, groundwater soluble contamination and the potential for rebar corrosion in the concrete. The parkade will accomodate 460 cars on two levels and is designed to be well below grade. The top side of the parkade … Read More

Background The 27.7 km (17 mile) Beijing subway tunnel travels underground, from Songjiazhuang, in south Beijing, to Beitaipingzhuang in the north. The route lightens traffic on the city’s north-south axis along the third ring road. Many cracks in the finished concrete tunnels were actively leaking water and it was feared that the reinforcing steel, tracks, guide … Read More

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

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