Patent ID: 9630878
Date: 2017-04-25
CPC Classifications: C04B,Y02P,Y02W

Claim:
1. A cementitious composition comprising: a binder containing: (a) 72-94%, by weight, of ground granular blast furnace slag (GGBFS); (b) at least 0.5% calcium sulfoaluminate (CSA), by weight, said CSA having the structure 3CaO.3Al (c) 1.2-11% by weight, expressed as SO (d) a total sulfate content of at least 3%, and at most 11%, by weight, expressed as SO the cementitious composition comprising, at most, 3% natural lime; the cementitious composition comprising, at most, 3% alumina cement; the cementitious composition comprising, at most 3% of an Ordinary Portland Cement (OPC); the cementitious composition comprising, at most, 5% of said CSA; the contents of the composition being calculated on a dry, aggregateless basis.