'additives for a hydraulic binder based on a belite-calcium-sulphoaluminate-ferrite clinker'

摘要

The present invention relates to a composition comprising at least, in % expressed by mass relative to the total mass of the composition, - from 0.01 to 3 % of polycarboxylic acid or salts thereof, the said polycarboxylic acid comprising 2 to 4 carboxyl groups per molecule; and - from 97 to 99.99 % of a Belite-Calcium-Sulphoaluminate-Ferrite clinker (BCSAF clinker).