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UndergroundPerformance of Dry-Mix Shotcrete in Permafrost Environment

Jean-Francois Dufour

In order to achjeve the objective. it was impor­tant to develop a mix lhat would rapidly generate a high heac of hydration. The cold ambient air would cool down 1he shotcrete but the heat released dur­ing the hydration process would allow 1he hydra­tion of ccmem