Elevated Temperature and Durability Studies on High Strength Concrete

Abstract

In this paper, an attempt was made to study the effect of elevated temperatures and durability studies on fifty one numbers of ten centimeter high strength concrete cubes prepared with ultrafine mineral admixture, Alccofine 1203. Trials were made with 0%, 5%, 10% and 15% replacement of cement with Alccofine. Optimum percentage of replacement of cement by Alccofine was found to be 10%. The maximum compressive strength achieved was 79.93MPa. Elevated temperature, Non-Destructive test and Durability studies were conducted. The percentage loss in weight was found to be decreased with the temperature increase from 1000C to 9000C. Similar trend was observed for Compressive strength also with the temperature increase. But compressive strength was increased at 3000C. The weight and compressive strength was increased when immersed in Sulphate solution, Chloride solution, Alkali solution and Sea water.