Compositions of promoters accelerate the hydraulic setting anhydrite and 1995 for the use of these compositions

摘要

The present invention relates to a process for accelerate the setting of hydraulic, anhydrite characterizes in that it uses the means for accelerate jarosite during the formation of the mixture of anhydrite with water, said means being then constituted by ferrous sulphate and potassium nitrate, it relates in addition, as additives promoting the anhydrite, the use of said means.