专利名称：Rapid setting accelerators for cementitious
compositions
发明人：Raymond J. Schutz申请号：US06/463259申请日：19830202公开号：US04444593A公开日：19840424
摘要：A mixture comprised of an alkali metal carbonate and an inorganic salt of ferriciron, other than ferric phosphate, is an accelerator for cementitious compositions and isparticularly useful for shotcrete and hand-applied mortar. The preferred alkali metalcarbonates are sodium carbonate and potassium carbonate and the preferred ferric ironsalts are ferric sulfate, ferric chloride and ferric nitrate. The mixture achieves initial settimes of at most about 3 minutes and final set times of at most about 10 minutes. Bothinitial and final set times are shorter than predicted by simply averaging thecorresponding set times of both components when used alone.
申请人：PROTEX INDUSTRIES, INC.
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