Experimental Investigations on Abrasion Resistance for Horizontal Concrete Surfaces

Abstract

The increasing demand of concrete has escalated the desire of aggregates in production newlineof concrete. Despite being commonly perceived as inert substance, it possesses newlinesignificant influence on the characteristics of fresh and hardened concrete due to their newlinephysical, chemical, and mechanical attributes. The persistent rise in the need for aggregate newlineaccelerates the exhaustion of ecological reserves. Exploration of alternative source newlineof aggregate is needed to address environmental degradation and the depletion of natural newlineresources. The requisite is huge to examine the viability of using industrial waste newlinematerials as a potential aggregate replacement in concrete. Examining the usage of nontraditional newlinematerials as coarse aggregate and researching their properties in concrete are newlinethe goals of the current study. Steel slag is a residue produced during the production of newlinepig iron and steel. Steel slag aggregates are substituted for natural stone aggregate in newlinevaried proportions (0%, 25%, 50%, 75%, and 100%). The physical characteristics of newlinethe steel slag and natural stone aggregates were examined including the water absorption, newlinespecific gravity, gradation and fineness modulus, impact value, crushing value, newlineand abrasion value. The M20, M25, M30, M35, and M40 grade of concrete mixes were newlineadopted traditional concrete and M30 grade was taken for further investigation on steel newlineslag aggregate mixed concrete. newlineThe fresh and hardened concrete properties of steel slag aggregate mixed concrete and newlinenatural stone aggregate concrete are studied whereas fresh concrete tests include slump newlinetests and compaction factor tests and mechanical strength properties such as compressive newlinestrength, flexural strength, and split-tensile strength were performed. Subsequently, newlineNDT was also conducted using ultra-sonic pulse velocity to determine the quality of the newlineconcrete. In addition, to evaluate the durability of the concrete, Rapid Chloride Penetration newlineTest (RCPT) and abrasion test are conducted using the standard guidelines (IS newline1237 and IS 9284). Moreov