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Title: Constructability of Mass Shotcrete

Author(s): Van Zetten

Publication: Web Session

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Appears on pages(s):

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DOI:

Date: 4/1/2021

Abstract:
This presentation will discuss the research and development towards a proposed solution to overcome constructability limitations of mass concrete structural walls for the Eglinton LRT project, in Toronto, Canada. Some of the stations are being constructed top-down, limiting the access of moving forms and in a method that will adhere to the schedule, so shooting the concrete was suggested. With very tight maximum temperature restrictions (50C) and a maximum thickness of 1.3 m, a high-volume slag replacement shotcrete mix had to be developed and tested.