Articles Search

UndergroundStructuralMount Pleasant Station, Part 1: Preconstruction Qualification for Shotcreting of Mass Concrete

Shaun Radomski; Dudley R. (Rusty) Morgan, Ph.D., F.ACI; Lloyd Keller, F.ACI; Daniel Sanchez; & Laura Di Monte

Multi-million-dollar underground stations are currently under construction on Metro and LRT lines in Toronto, Ontario, Canada. Traditionally, the thick, heavily reinforced structural concrete station walls have been constructed using the conventional form-and-pour concrete construction method. This construction method, while widely used, is not without its