EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF CEMENT BY SILICA FUME

Civil Engineering

Today, we need to look at a way to reduce the cost of building materials; particularly cement is currently so high that only rich people and governments can afford construction. Studies have been carried out to investigate the possibility of utilizing a board range of materials as partial replacement materials for cement in the production of concrete.This study investigated the strength & properties of silica fume concrete. Silica fume is very fine non crystalline material. Silica fume is generally categorized as a(One type of mineral admixtures) supplementary cementitious material. Silica fumes are generated by industries, which causes environmental as well as health problems due to dumping and disposal. Proper introduction of silica fume in concrete improves both the mechanical and durability characteristics of the concrete. Silica fume was initially view as cement replacement material and can be used as pozzolanic admixtures (mineral admixture). We are partially replacing cement with silica fume by adding 0%, 5%, 10%, 15%,20% by weight of cement in concrete and comparing the compressive strength of normal concrete with silica fume replaced concrete. This study has shown that between 5 to 10% replacement level of cement by silica fume in concrete will develop strength sufficient for construction purposes.

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