Flexural strength of concrete by sisal fiber

Abstract

The inclusion of fiber reinforcement in concrete can enhance many of the engineering properties of the basic materials. Now a days the natural fibers like sisal, coconut, jute, bamboo and wood fibers etc. are used as reinforcement in cement-based materials. In this review, sisal fiber has been used as reinforcement to check the strength property of concrete. The experimental data are provided to illustrate the performance of sisal fiber reinforced cement. Composites are described in relation to fiber content of 0%, 0.5%, 1%, 1.5 %, 2%, 2.5% and 3% in M20 grade concrete with various fiber length of 10mm, 20mm,30mm, 40mm and 50mm and the flexural strength have been investigated. The flexural strength of sisal fiber reinforced concrete carried out using 100mm x 100mm x500mm size of the beam under third-point loading method. The optimum fiber volume fraction for flexural strength was found to be at 2.5% of the 30mm length. The flexure strength improved with the increase in volume fraction of fibers. The test results indicated that the sisal fibers were effective in improving the flexural strength of concrete.