Performance of Polyster Fibre Reinforced Concrete

Vinayak Bajirao kumbhar; V.S. Raut; S.A. Bhalchandra

doi:10.3759/jocetm.v9i2.2723

Abstract

The present work deals with the results of experimental investigations on Recron 3s Polyester fibre reinforced concrete. Effect of these fibres on various strengths of concrete are studied. Firstly 0.1% fiber content is used and after that varied from 0.2 to 1.8% at an interval of 0.2% by weight of cement. Various strengths considered for investigation are compressive strength, flexural strength, split tensile, bond strength and shear strength. Cube of size 100 mm for compressive strength, beams of size 500 mm×100 mm×100 mm for flexural strength, cylinder having 200 mm height and 100 mm diameter for split tensile test and shear specimen of 150 mm×150 mm×450 mm for shear test were cast. All the specimens were water cured for 7 and 28 days and tested subsequently. The workability is measured with the slump cone test. The wet and dry density at 7 and 28 days is calculated. Ductility of concrete is found to increase in the fibre reinforced concretes as observed from the load deflection study. The Poisson’s ratio is found to vary within the specified limits. The Static and Dynamic Modulus of concrete are studied. Relation between compressive strength and all other strengths are developed. A comparison of results of Recron 3s polyester fiber reinforced concrete with that of normal concrete showed a significant improvement in the results of various strengths.