Encapsulation quality of reinforcement: Impact on bond strength and structural design considerations
September 3-6, 2017
Proper reinforcement encapsulation is a concern among structural engineers who must work with limited specific guidelines for shotcrete. Indeed, imperfections behind reinforcing bars (or any other obstacles) are often reported with the excessive use of set-accelerating admixtures or with unskilled nozzlemen. To address such concerns, past research has mainly focused on optimal mixture consistencies and best nozzle handling techniques to obtain perfect encapsulation [1, 2].
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Pasquale Basso and Marc JOLIN, "Encapsulation quality of reinforcement: Impact on bond strength and structural design considerations" 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). https://dc.engconfintl.org/shotcrete_xiii/3