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Effect of Cement Replacement by Silica Fume on Compressive Strength of Glass Fiber Reinforced Concrete

Liaqat A. Qureshi, Arslan Janjua, and Usman Muhammad
University of Engineering & Technology, Taxila, Pakistan

Abstract—The present study focuses on the preparation of high performance concrete by employing industrial waste to preserve the natural raw ingredients of concrete. In this regard, an attempt was made to investigate the combined effects of incorporating glass fibers and silica fume on compressive strength of concrete. Glass fibers were added in ratio of 0%, 0.5%, 1.0% and 1.5%. Also, cement was partially replaced with silica fume by 0%, 5%, 10% and 15% by weight of cement. Compressive strength test was carried out on standard specimens cast by composite mixes prepared in this way. Slump test was also carried out on all mixes before casting test specimens to ascertain workability of fresh concrete. It was found that compressive strength of GFRC increased with the increase in percentage of SF replacement and glass fiber content. Maximum compressive strength of GFRC was obtained at 15% replacement of cement with SF. Furthermore, it was also found that addition of silica fume facilitated the early high strength of GFRC. 

Index Terms—Pozzolana, Replacement level, Mix ratio, GFRC, Workability, Silica fume, Water binder ratio.

Cite: Liaqat A. Qureshi, Arslan Janjua, and Usman Muhammad, "Effect of Cement Replacement by Silica Fume on Compressive Strength of Glass Fiber Reinforced Concrete," International Journal of Structural and Civil Engineering Research, Vol. 7, No. 3, pp. 177-182, August 2018. doi: 10.18178/ijscer.7.3.177-182