Shotcrete is a method for placing concrete. Thus, the concrete placed by the shotcrete method has the same physical properties as cast concrete with the same mixture proportions. Either working stress or ultimate strength methods used for concrete design are applicable. Local building codes may require a particular design approach.
I am a structural engineer and I am supposed to design structures for shotcrete applications. Should I calculate and check its stability by the “working stress method?” Or, could I use the “ultimate limit design?” Are there regulations or specifications about the application of method on ACI? Finally, is elastic coefficient different between normal concrete and shotcrete?
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