The Fnfluence of Fluorspar on Portland Cement Manufacture

The Addition of below 1% Fluorspar to the Raw Mixture

Abstract

In continuing the previous study, the author reports in present paper on the influence of the fluorspar content, varied 0.0%, 0.2%, 0.4%, 0.6%, 0.8% and 1.0%, in a raw mixture.
Results are: (1) This substance, when added in quantities from 0.2%, to 1.0%, decreased the consumption of the heavy oil, increased the output of the clinker and retarded the set of the cement. (2) That containing 0.2%, 0.4% or 0.6% flourspar gave the high-strength cement. (3) 0.4%-0.6% fluorspar are suitable contents for the consumption of the heavy oil and the quality of the cement.