Process for manufacturing rapid hardening portland cement clinker

摘要

A process for manufacturing a rapid hardening portland cement clinker containing a calcium halo-aluminate having the formula; 11CaO.7Al2O3.CaX2, in which X is a halogen, characterized by adding at least one sulfur compound selected from calcium sulfate, calcium sulfite and calcium sulfide to the mixed raw materials comprising mainly an aluminous material, a calcareous material, a silicious material, an iron source and a halogen source, and burning the obtained mixture in an oxidizing temperature.