Author : Konapure C.G. and Kangiri S.D.

The use of two or more types of fibers in a suitable combination may potentially improve the overall properties of concrete and also result in performance of concrete. The combining of fibers, often called hybridization, is investigated in this paper for a M25 grade concrete. Control and two-fiber hybrid composites were cast for 0.5% & 1% total fiber volume fraction by using different fiber proportions of steel and polypropylene. Compressive strength test, flexural strength test & split tensile strength were performed and results were extensively analyzed to associate with above fiber combinations. Based on experimental studies, the paper identifies fiber combinations that demonstrate maximum compressive strength, flexural and split tensile strength of concrete.

Keywords: Steel Fiber, Polypropylene Fiber, Compressive strength, Compaction factor, Hybrid composites, Split tensile strength, Flexural strength, Workability.

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)