Feasibility study of fly ash as a substitute for fine aggregates in concrete and its behavior by alternate wetting and drying Process

^1. Department of Civil Engineering, KLS Gogte Institute of Technology, Belagavi-590008, Karnataka, India
^2. Department of Civil Engineering, Government Engineering College, Haveri-581110, Karnataka, India
^3. Department of Civil Engineering, KLS Gogte Institute of Technology, Belagavi-590008, Karnataka, India

^* Corresponding author: nadeshpande@git.edu

Abstract

The lack of quality material in today's rocks has led to the search for other sources. The possibility of using ash fly, a byproduct of the commercial sector, as a substitute for good mixing has been investigated in this study. This article presents the results of a research experiment conducted to evaluate the strength of concrete with fly ash instead of natural sand for 45 alternating wet-dry cycles. Consider 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70% and 80% replacement of fine aggregate with fly ash and subject the concrete to 45 alternate wet-dry cycles. According to IS standards, various mechanical properties of strength tests such as compressive, tensile, bending, shear and impact strength are studied in this research work. Experimental results show that the strength of ordinary concrete with fly ash obtained from natural sand greatly increases in the dry-wet transition. For this reason, it is possible to use fly ash in wet and dry transitions by combining well and it can be used effectively in concrete.