Experimental Investigation on Strength and Workability Properties of Concrete with Partial Replacement of Coarse Aggregate by E-Waste.
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Abstract
E-waste is a highly hazardous material with a poor recycling rate, and as such, its management and recycling are expanding quickly. E-waste is a useful resource for IT sectors. This issue has consumed a significant portion of the world's solid waste output. Utilizing e-waste will lower the cost of aggregate and give roads and buildings good strength. It saves energy and will lower the cost of landfills. The construction industry is working to substitute some of the fine or coarse particles in concrete with non-biodegradable e-waste components. The goal of this research is to improve the environment's E-waste generation by incorporating it into M30 Concrete and evaluating the concrete's workability and compressive strength both when it's fresh and after it has hardened. This work contributes to the optimization of e-waste generation and its application in the building sector. Using E-waste particles as coarse aggregates in concrete at replacement percentages of 0%,10%,20%, and 30% depending on the M30 concrete strength requirements. Three tests were used to determine the properties of fresh concrete: the vee bee, the compaction factor, and the slump cone test. Additionally, the mechanical qualities of the concrete were ascertained through the observation of its compressive strength, tensile strength, and flexural strength, both with and without the addition of e-waste aggregates. It has been demonstrated that using E-waste particles to partially replace coarse aggregate is feasible. A sufficient number of cubes, cylinders, and beams were formed for this experimental examination to examine the concrete's compressive, tensile, and flexural strengths. Our findings indicate that adding E-waste to cubes initially increases their compressive strength, but eventually causes it to decrease. The compressive strength of concrete reaches 34.1 N/mm2 when 10% E-waste is added, and thereafter it begins to decline.