Utilisation, comme additif de contrôle du seuil d'écoulement et/ou de la viscosité, d'une silice précipitée dans les pâtes cimentaires .

摘要

The use of 0.5-5 wt %, based on the weight of cement, of precipitated silica as the viscosity and/or flow point controlling additive in mixed compositions consisting of cement and water, is disclosed. Cement pastes containing 0.5-5 wt %, based on the weight of cement, of such an additive, and the corresponding compositions after setting, are also disclosed.