Effect of Partial Replacement of Fine Aggregate by Alternative Materials in Paver Blocks

Abstract

Abstract: The need of concrete is increasing every year as the population of humans are increasing as per their demands i.e. infrastructure developments and shifting composition etc. Due to rising demands and fight to produce good quality of concrete, construction industries have overused the natural materials used in concrete, leads us to extinction in natural materials and results in rising prices of materials. Thus, the environmental problems related with excessive extraction and mining from natural sources have been reported in many countries. Due to finite availability of natural materials, and involvement of economy, it has now become very important to look as for the alternative source for natural materials used in concrete i.e. gravels and crushed sand. Metal swarf and ceramic tile waste is a propitious material that can be used as an alternative for the crushed sand i.e. (fine aggregates) in concrete. The paper demonstrates the potential of re-use for metal swarf and ceramic tile waste i.e. industrial byproduct as a substitute of a fine aggregate in concrete. The fine aggregates i.e. (crushed sand) are replaced with fine metal swarf and ceramic tile waste in four different substitution rates i.e. (5%, 10%, 15%, and 20%). Tests were performed to examine the mechanical properties i.e. (compressive strength) as well as the durability of concrete i.e. (water absorption). The results indicate that the compressive strength after 28 days of concrete paver blocks was increased a little by replacing metal swarf by 5% weight of fine sand, compressive strength after 28 days of concrete paver blocks decreases by 7-8% for 10%, 15% and 20% replacement with metal swarf. Compressive strength after 28 days was decreased by replacing ceramic tile waste by 7-15% for 5%, 10%, 15% and 20% replacement. Water absorption increases by approximately 10% for each 5% replacement of metal swarf and water absorption increases drastically while replacing ceramic tile waste i.e. around 100% for 20% fine aggregate replacement with ceramic tile waste.