An Experimental Study on Self Consolidating Concrete with Silica Fume and Glass Fibre

Abstract

Self-Consolidating Concrete (SCC) is one of "the most revolutionary developments" in construction industry. This concrete is able to flow and fill the most restricted places of the form work without vibration. The Self-Consolidating Concrete is a high performance concrete which is more consistent. To enhance the strength of Self Consolidating Concrete, Silica Fume is added, which is much finer than the cement. Alkali Resistance Glass Fibre is relatively a new construction material, which is used in SCC to increase the tensile strength of concrete. For appropriate workability, Super Plasticizer (SP) and Viscosity Modifying Agent (VMA) are added to reduce segregation of the aggregate.. Self-Consolidating concrete has identical quality, with the use of VMA and Super Plasticizer. The cost of SCC is much higher than the Conventional Concrete. The cost of materials for SCC is greater about 10-15%, when compared to materials for Conventional Concrete. But, It is economical like, savings in rate of labour, rate of pouring and rate of repair work etc., In this study 6%, 12% & 24% of Silica Fume and 0.5% of Glass Fibre by the weight of cement are added in concrete to enhance the possessions of Self Consolidating concrete. Alkali Resistant Glass Fibre with a filament length of 12 mm diameter of 14 microns, and an aspect ratio of 857 is used. In this experimental work, M30 grade of concrete is taken to determine the compressive strength, split tensile strength and flexural strength of Self Consolidating Concrete with the optimum percentage of Silica Fume, Glass Fiber, Super Plasticizer and VMA.