Compatibility Study of an Admixture with Different Cement Brands of Varying Chemical Composition for SCC

Abstract

Developing countries like India see a lot of infrastructural developments like metros, high rise buildings, roads, airports etc. The use of special concrete also attained faster pace with these developments. Self-compacting concrete is one such development which helps in concreting dense reinforcements. The constituent materials of making concrete conform to Indian standard specifications, but different types of cement may vary from batch to batch and brand to brand in their chemical composition. Therefore the compatibility of a chosen admixture with different brands of cement of same type for the preparation of self-compacting concrete may be a question. In this study, the suitability of a selected admixture with two brands of cement of Portland pozzolana type is determined by finding out the optimum dosage by marsh cone test. The slump retention time of the cement slurry at 0, 30 and 60 minutes is also studied.