Burning Conditions and Characteristics of Alinite Rich Clinker

Abstract

In order to obtain fundamental data on practical manufacture of alinite rich clinker, the burning conditions and characteristics were investigated. Alinite steadily forms at somewhat higher temperature than that of previous papers, 1200-1300°C. Minor elements influence formation of alinite and burnability of raw meal. Especially, influences of alkali and chlorine are large. Suitable amount of calcium chloride as mineralizer's effect reduces with the increase of burning temperature. The clinker burnt at suitable condition is porous and contains small size belite like football and alinite of 5 to 30, um in size. Contents of Al₂O₃ and Fe₂O₃ in alinite become more and less, respectively, as burning temperature increases.