Admixture-enhanced hydraulic composition with low carbon content - premixes and methods for obtaining them - methods using them

Abstract

The invention relates to an admixture-enhanced wet hydraulic composition (ABCD) comprising: (A) a hydraulic binder composition comprising: (.A.1.) lime and / or clinker, (.A.2.) and a mineral additive; (B) an admixture comprising: (.B.1.) a water-reducing or high-range water-reducing admixture selected from the polyalkoxylated polycarboxylates, (.B.2.) a water-reducing or high-range water-reducing admixture selected from the polyalkoxylated phosphonates, (.B.3.) a rheological agent, (.B.4.) a calcium salt, (.B.5.) an antifoaming agent and / or at least one air-entraining agent, and (.B.6.) a biocide; (C) water; (D) an aggregate. ABCD has a viscosity suitable for handling and shaping, an appropriate curing time, and satisfactory mechanical properties at all ages and satisfactory durability in its hardened state.