A cementitious composition comprising an accelerantA source of Calcium sulfate Cement and a Trainer of ettringite; method of applying Said composition to a Surface to form a member method; concrete; concrete comprising dIcha composition.

摘要

The invention provides a cementitious composition comprising a cement component comprising (i) an accelerant, (ii) a calcium sulphate source and (iii) an ettringite forming cement; an aggregate; and optionally water; wherein the cement has a minimum unconfined compressive strength of 1500 psi when tested in accordance with ASTM C1140 and/or C1604 at 15 minutes after placement; methods for its use and concrete formed from it.