Experimental Investigation On M-40 Concrete Incorporating Waste Ceramic as Partial Aggregate Replacement with Superplasticizer for Enhanced Performance

Concrete is probably the most utilised building material in the world, after water. It includes cement, sand, coarse aggregate, and water, with additions of admixtures to help improve certain attributes being optional. Over the past few years, there has been increasing interest to find alternative products to replace constituent parts of ordinary concrete partially because of sustainability, as well as waste management programmes. Of those, industrial as well as agriculture by-products have been increasingly reported as potential candidates. Concrete is renowned for its strength and versatility in taking the desired shapes. Still, its tensile strength being relatively low restricts its use in zones of tension, and thus reinforcement is required to be able to bear tensile loads. Moreover, investigating the use of alternate materials as partial substitutes of conventional constituents may result in improved concrete performance in many aspects. The aim of this research is to analyze the relative performance of M40 grade concrete mixes using various coarse aggregate types. Three different mix designs were researched: one based on 100% crushed ceramic material as coarse aggregates, one using 100% black gravels, and one mix made up of 50:50 mixes of ceramic material and black gravels. The research also looks at how adding the admixture Conplast SPG8, a superplasticizer, to these concrete mixes influences their compressive strength. The research involved identifying the compressive strength of the concrete samples after seven, fourteen, and twenty-eight days for both the admixture and the admixture-free samples. The final aim was to determine which type of aggregate, with or without inclusion of the superplasticizer, produced the best compressive strength results. This detailed analysis offers important information on the promise of alternative aggregates and admixtures in the improvement of concrete performance.