Innovative shotcrete technologies for durable rapid underground development and infrastructure repairs exposed to severe conditions
September 3-6, 2017
Among the techniques used for ground support in underground applications and infrastructure repairs, shotcrete or sprayed concrete has been used very successfully for many years due to the flexibility, efficiency and robustness offered by the shotcrete process. In parallel, major advancements have been made to improve the mechanical performance, ease of application and durability of shotcrete materials over the past two decades. The advancements in shotcrete materials and processes to be covered in this paper include the durability properties of shotcrete materials used in North America to build and repair concrete structures exposed to severe freeze and thaw cycling and high volumes of aggressive agents such as chloride ions due to the use of de-icing salts.
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Nicolas Ginouse, Simon Reny, and William Clements, "Innovative shotcrete technologies for durable rapid underground development and infrastructure repairs exposed to severe conditions" in "Shotcrete for Underground Support XIII: New Developments in Rock Engineering, Tunneling, Underground Space and Deep Excavation", Dietmar Mähner, Institute for Underground Construction, FH Münster, Germany Matthias Beisler, ILF Consulting Engineers, Asia (Thailand) Frank Heimbecher, Institute for Underground Construction, FH Münster, Germany Eds, ECI Symposium Series, (2017). http://dc.engconfintl.org/shotcrete_xiii/1