Substitution of Cement in Concrete

Cement is a binding agent; it may bind other materials together and sets and hardens on its own. In the past, traditional binding materials such jaggery, lead, jute, rice husk, etc. were used; in the present era, cement is the primary binding material. High volume fly-ash concrete has been more and more popular lately as a resource-efficient, long-lasting, and ecological solution for a range of concrete applications. Throughout the past 20 years, a lot of research has been done on the use of fly ash in concrete at amounts between 30 and 65 percent of the total cementitious binders. We have switched out the cement for HIGH VOLUME FLY-ASH AND LIMESTONE because of some of its shortcomings. By lowering energy consumption (the energy needed to make cement), these two materials contribute to a more "green concrete" and stop the depletion of natural resources. They also cut greenhouse gas emissions correspondingly. Our goal was to replace cement with high volume fly ash and lime in accordance with the standard mix design, in order to reach the target strength of M40 grade (using 53 grade of cement). We were able to reach the M40 goal strength by substituting fly ash and lime for approximately 75% of the cement's mass. In this context, the mix design's features and cost analysis are also examined. We have lowered the cost of M40 grade concrete by up to 40% when compared to the original mix design, which called for a cent of cement. This is achieved by replacing 75% of the cement with HVFA and LIMESTONE.