Accelerating agents for accelerating hardening of cement

Details Accelerating agents for accelerating hardening of cement Accelerating agents for accelerating hardening of cement

C - Chemistry, Metallurgy

04

B

31/12, 261/50

C04B 28/02 (2006.01) C04B 40/06 (2006.01)

Patent

CA 1105950

ABSTRACT An agent for accelerating hardening of cement for use in an underground mining in- stallation employing concrete-like packs in- cluding run-of-mine coal. The agent comprises by weight one and a half parts triethanolamine, five parts sodium carbonate and one part pot- assium carbonate. Too rapid setting of quick setting cement is avoided by the agent because a slurry of cement in water is mixed with a slurry of agent and run-of-mine coal in bentonite in a mixer immediately before being added to a pack so that setting cement does not occur in pipes leading to the mixer. -1-

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