Comparative Study on Utilization of Condensed and Volcanized Silica Fume as Partial Replacement to Cement

Due to rapid increase in the field of construction now a days due to various aspects like urbanization, Industrialization there was a great need for cementitious materials. So, a limitless research’s have been carried out from time to time to replace these the cementitious materials with waste materials. In this aspect wastes like condensed silica and volcanized silica has provided a great path for study in place of cement. In this research the effect of high temperature on the workability and mechanical properties of silica incorporated concrete specimens were analyzed. For this purpose, concrete specimens containing 0, 5, 10,15 and 20% condensed silica fume and volatized silica fume substituted for cement with different w/b ratios and cured at different ages were prepared separately. The mechanical properties before and after exposure to high temperatures of 45°C were recorded. The results were further analyzed by comparison of mechanical properties and found that 15% variation in proportion was found to be optimum.