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2016SummerShotcreteEMag

Industry News HCM Innovation—Ottawa West Block Tunnels HCM is currently completing shotcrete placement for tunnels at the West Block of Parliament Hill in Ottawa, ON, Canada. Work consists of the installation of a 2 to 4 in. (50 to 100 mm) shotcrete regulating layer followed by a 6 in. (150 mm) thick waterproofing preparation layer. HCM will install regulating and waterproofing preparation shotcrete for approximately 11,500 ft2 (1068 m2) of tunnel area, including 3500 ft2 (325 m2) of overhead work. HCM is using nozzle-added accelerator to achieve high early strength and increased cohesiveness, allowing the shotcrete to be effectively applied overhead. OnLine All ASA members and subscribers have access to the electronic version of Shotcrete magazine. A link to this e-magazine is sent as an item in the “What’s in the Mix” e-newsletter. To ensure that you receive access to every issue of the electronic version of the magazine, send your e-mail information to info@shotcrete.org. Shotcrete • Summer 2016 73


2016SummerShotcreteEMag
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