Calculation of the C3A Percentage in High Sulfur Clinker

Abstract EN

The aim of this paper is to clarify the influence of the clinker SO3 on the amount of C3A.

The calculation of the cement phases percentages is based on the research work, Calculation of the Compounds in Portland Cement, published by Bogue in 1929 .The usage of high sulphur fuels, industrial wastes, and tires changes completely the working condition of Bogue because the assumed phase compositions may change.

The results prove that increasing the amount of SO3 in the low alkali clinker decreases the percentages of C3A due to the high incorporation of alumina in the clinker phases mainly C2S and C3S.

The correlation is linear till the clinker SO3 reaches the 2%.

Over that the influence of the clinker SO3 became undetectable.

A new calculation method for the determination of the C3A in the high sulphur and low alkali clinker was proposed.