SET REGULATING AGENT FOR FOAMED CONCRETE

摘要

A setting control agent for foamed concrete comprises 40-95 wt.% alumina cement compsn. and 60-5 wt.% type (II) anhydrous calcium sulphate of a specific surface 2800-6500 Cm2/g. The alumina cement compsn. comprises 100 wt.% alumina cement contg. CaO. Al2O3 as a main component and 10-400 wt.% CaO-contg. cpd. other than CaOAl2O3. The agent is esp. useful for the production of the foamed concrete from a rapid setting expanded slurry.