Experimental Study on Compressive Strength of M40 Concrete by Replacing Artificial Sand and Steel Fiber against Natural Sand and Cement

For use in construction, Natural River sand is highly Natural river sand is highly valued for use in construction. Researchers found that manufactured sand (M-sand) is a good replacement for fine aggregate in concrete because current sand cannot keep up with the increased demand for concrete. In the current experiment, river sand was gradually substituted with M-sand, which was increased incrementally by 10% from 0% to 100%. For the mix classes of M40 with comparable specific gravities, mechanical and durability tests were performed. Workability was enhanced for all concrete grades in the second stage steel fibre mix in concrete that was used to boost the strength of regular concrete. The mechanical parameters of split tensile strength, flexural strength, compressive strength, and elastic modulus performed better during the 7, 21, and 28-day curing periods.