Patent ID: 8728230

Claim:
A cementitious composition based on cement and water, comprising, as viscosifying agent, a liquid aqueous polysaccharide suspension in a content of between 0.1 and 5% by weight of cement, wherein said liquid aqueous polysaccharide suspension comprises: a concentration by weight of at least one polysaccharide of between 15 and 35% in the form of partially hydrated particles dispersed in an aqueous solution of a strong base salt, with the exception of ammonium salts, having an ionic strength of between 1.25 mol/l and 15 mol/l, exhibiting a pH of greater than 9, and an attapulgite in the micronized form and at least one nonphyllitic mineral powder as a filler, chemically inert in said liquid aqueous polysaccharide suspension, with a particle size of between 0.1 and 100 micrometers, conferring on said liquid aqueous polysaccharide suspension a stability at least in a temperature range extending from 5 to 30° C.