Use of polysaccharides for addition in mineral materials

摘要

the present invention is the use of specific polysaccharides for the adjuvantation mineral materials, especially for the adjuvantation for mineral binders.;these polysaccharides are typically:a weight average molecular weight (mw) at least equal to 500 g / mol and less than 9000 g / mol, in particular from 700 to 7 g / mol), and- a level of service "b" at least equal to 10%, between 10 and 40%.;the invention also relates to the combined use, mineral materials, such as polysaccharides, mineral binders, these individuals, on the one hand, and other additives, for example, on the other hand, additives, such saccharidique functionality or not, everyday fiante, superplastifiante or something.