An Experimental Study on Mechanical Properties of Bendable Concrete by Using Fly Ash and Recron 3S Fibers

Abstract

Diminishing the brittle idea of concrete has opened another universe of potential outcomes to upgrade the safety, strength and durability of the up and coming age of civil infrastructure . Small strands mostly represent its exhibition, and furthermore the materials are intended for greatest adaptability, on account of its long life, the Engineered Cement composites (ECC) is required to cost less over the long haul, too. The pliable or bendable cement is made of same fixings as in standard solid short the coarse aggregate. It looks precisely like normal concrete, yet under unreasonable strain, the ECC concrete permits, the uncommonly covered organization of fiber in the concrete to slide inside the concrete, accordingly evading the rigidity that causes weakness and breakage. The key factor is that ECC is designed, implies notwithstanding fortifying the solid with small size strands that go about as tendons to bond the solid all the more firmly. An experimental has been carried out for M25 concrete using the optimum percentage of partial replacement of cement with fly ash and incorporating with different percentages of Recron fibers. Fly ash was partially replaced as cement by 10%, 20% and 30% and Recron fiber as 0.5%, 1.0% and 1.5% respectively. Conventional concrete cubes, cylinders and beams were casted and tested for 7 days and 28 days with water cement ratio of 0.45. The results are discussed in detailed. The compressive strength 15.15%, split tensile strength 50% and flexural strength 20.63% greater for replacement of cement with fly ash 30% and 1.5% of Recron fiber when compared with conventional concrete. Compared to the conventional concrete plate specimen the deflection value is high for replacement of cement with 30% fly ash and 1.5% of Recron fiber. Bendable concrete plate 30% of Fly ash and 1.5% of Recron fiber was found to be optimum replacement of cement. Plate size (700×150×30) mm &(700×150×45)mm shows the high flexural strength compared with the normal plate