Optimize properties of Concrete With Silica Fume

This paper shows the results of an experimental work on concrete containing different parts of silica fume. Silica fume is a by-product of the silicon and ferrosilicon alloy production the main aim of this work is to find the optimum quantity of silica fume to reinstate cement in order to get better properties of hardened concrete. To accomplish the purpose, workability, compressive strength, flexure strength, split tensile of concrete containing silica fume were find after 7, 14 and 28 days of curing. Furthermore, judgment between normal concrete and modified concrete containing 5%, 10% and 15% of silica fume was studied. The water/binder ratio was kept constant at 0.45 throughout the mixing process. The outcomes of this investigation indicate that compressive strength and flexural strength gives the highest improvement of 10% and 15% silica fume replacement respectively. This paper can be a useful basis of information for other researchers to understand the profit and bad effects of silica fume and have a summary of its optimum percentage when dealing with concrete.