Material Modeling of Wheat Straw Reinforced Concrete for Pavement Application

Abstract

In this research analytical and numerical models of already experimented compressively tested Plain and wheat straw reinforced concrete (WSRC) cylinders have been developed for pavement application. The experimental data consist of plain concrete (PC) and wheat straw reinforced concrete with 1%, 2%, and 3% wheat straw fiber by weight of wet concrete. Analytical expression based on experimental results developed by taking Carreira and Chu, 1985 [1] as a reference and parameters of it has been developed by curve fitting technique in Matlab. The result of an analytical expression is then modeled in ABAQUS which is finite element software and checks the behavior of concrete cylinder by concrete damage plasticity model (CDPM). Developed analytical expression results in resonance with that of experimental results of plain concrete and that of WSRC.Similarly, the stress-strain curve resulted from CDPM perfectly matches with the analytical stress-strain curve.