Strength behaviour of HSC using Polypropylene fibers

ABSTRACT

In this present work experimental investigation has been done to observe the change in behavior of High Strength Concrete (HSC) using Polypropylene fibers  (PPF) . In this paper, comparison of conventional concrete of grade M60 has been done with High Strength Concrete containing 3%, 4% & 5% of Polypropylene fibers replacing the cement content. Sikament, the superplasticizer 0.5% by weight of cement has been added to the concrete. The experimentation resulted in improved increase in compressive strength, split tensile strength and flexural strength. It has been observed that compressive strength increases by 5.35%, 6.2% & 7.9% at 3%, 4% and 5% respectively. It has been observed that split tensile strength increases by 18.08%, 24.3% & 37.3% at 3%, 4% and 5% respectively. It has been observed that flexural strength increases by 14.4%, 21.2% & 31.4% at 3%, 4% and 5% respectively. High Strength Concrete with 5% of Polypropylene Fiber content replacing the cement showed the optimum results.

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