Influence of different chemical admixtures in achieving high early strength concrete

摘要

High early strength concrete is fundamentally developed to provide a better solution to early housing and rehabilitation projects. Investigation in this project focuses primarily upon various industrial based accelerating admixtures which are dispensed in concrete mix in various dosages to obtain a high efficient mix. The specimens were casted and subjected to chemical and moisture curing. Fresh concrete properties like slump for workability and penetration resistance to analyse very early strength were done. Compressive strength at 1, 3, 7, 28 days were observed in order to identify the optimum dosage of accelerating admixtures. The result obtained showed that the type Y accelerator and chemical curing are the most suited to achieve high early strength concrete.