EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF CEMENT, FINE AGGREGATES & COARSE AGGREGATE WITH FLY ASH, STEEL SLAG & RECYCLED AGGREGATES RESPECTIVELY IN CONCRETE

Abstract

The construction sector encompasses a wide array of operations on a worldwide level. In contemporary society, there is a notable acceleration in the pace of advancement, leading to a fast depletion of naturally available building resources. Every year, a significant amount of garbage, amounting to millions of metric tons, is generated globally, with a substantial fraction of this waste being non-recyclable. Moreover, the process of recycling waste materials necessitates the use of energy resources and leads to the emission of detrimental pollutants. Furthermore, the management and elimination of garbage in suburban areas pose significant environmental hazards. The incorporation of waste materials into the manufacturing process of concrete is a viable approach to simultaneously address two objectives: waste reduction and the integration of beneficial features into the concrete mixture. This research paper talks about the results of the experiments that were done to find out the compressive strength of concrete when different amounts of cement, fine aggregate, and coarse aggregate were used instead. The concrete mixture was prepared in accordance with the specifications outlined in the IS10262-2009 standard. The mixture was composed of a grade of M-20 (1:1.8:3.16) and a water-cement ratio of 0.5. After studying the results, it was found that replacing cement, fine aggregates, and coarse aggregates with fly ash, steel slag, and recycled aggregates at 10%, 20%, and 30% ratios does not significantly lower the compressive strength of concrete. The process of individually replacing materials is being undertaken in order to assess the possible improvement in their strength. Once a particular threshold is attained, there will be a subsequent rise, resulting in the simultaneous replacement of all elements with the objective of evaluating the compressive strength of concrete.