Influence Of Steel Fiber Reinforced Characteristics On Mechanical Strength And Abrasion Resistance Of Cement Concrete Pavement

Abstract

Fibers are generally used as resistance of cracking and strengthening of concrete. Steel fiber is one of the most commonly used fibers. Short, discrete steel fibers provide discontinuous three-dimensional reinforcement that picks up load and transfer stresses at micro-crack level. Plain, unreinforced concrete is a brittle material, with possesses a very low tensile strength, limited ductility and little resistance to cracking. In order to improve the strength of concrete various types of fiber reinforced concrete are being used against plain concrete due to their higher flexural strength, better tensile strength, modulus of rupture and crack resistance.  The present study is to evaluate the performance of steel fiber reinforced concrete pavement with regard to compressive strength, split tensile, flexural strength, cantabro abrasion loss by varying the percentage of steel fibers from 0.5%, 1%,1.5%,2%,2.5%,3%  by weight of concrete were found out . The type of steel fiber used is of hooked end with aspect ratio 60. The obtained result shows that increase in percentage of steel fiber up to 2% gives the optimum the strength for compressive strength,flexural strength and cantabro abrasion test. And for split tensile strength 1.5% addition of steel fiber gives the maximum strength of cement concrete pavement than the plain concrete.