Published Paper Details:

Concrete is a common material used in the building industry. It is obtained by mixing cementitious materials, water, fine and coarse aggregates and sometimes admixtures in required proportions. Admixtures are added to concrete to modify its properties so as to make it more suitable for any situation. The aim of this research is to study the strength and durability index of concrete using mineral admixture of C30 grade concrete. The objective of this study is to investigate the effect of Mineral Admixture (Silica Fume) on the strength of concrete produced from cement (OPC). From previous studies it is observed that Silica Fume increases the strength of concrete, so this study has been conducted to know the effect of Silica Fume as an admixture on the compressive strength of concrete produced from cement (OPC). It also reflects the impact of adding admixture on the compressive strength and durability characteristics of concrete. Twelve cubes were cast in mould with dimension 150mm x 150mm x 150mm. 12 cylindrical samples were cast in mould of dimension 100mm diameter and 50mm height for testing C30 grade concrete. Silica Fume was replaced in the following proportions (5%, 10% and 15%) by weight of cement while mixing concrete and cured for 28 days in water. It is found that the optimum replacement of Silica Fume is 10% which gives the maximum compressive strength. Moreover sorpitivity tests on cylindrical sample shows that the durability index of concrete is within the acceptable range.