Comparative Study of Conventional Concrete and Green Concrete Made Of Fly Ash, Recycled Red Bricks and Recycled Crushed Aggregates

Abstract

Abstract: Because cement is a binding substance, it is commonly utilized in building. Cement production accounts for 8-10% of total world CO2 emissions.. This greenhouse gas is produced when lime stone and clay are smashed and heated to high temps in mills. Concrete contributes significantly to greenhouse gas emissions and complicates waste disposal. Therefore the use of recycled materials in concrete has become necessary. A Danish scientist by the name of Dr. WG made the initial discovery of green concrete in 1998, which has been a groundbreaking idea in the history of concrete. The term "green concrete" refers to a type of concrete that includes recycled components that are environmentally friendly, has greater performance, and have a longer life cycle .By utilizing industrial ecology, green chemistry, as well as the structural behaviour and organisation of cement nano-particles in the mix for higher performance, researchers have made numerous attempts to find alternatives that can significantly reduce high energy consumption and environmental impacts during the fabrication process of cement. It is also Observed that the increase in RHA to 20% i.e (Mix 2) & not changing the other two components, leads to the decrease in the strength, this is because of much replacement of Materials which effects the binding Factor of Cement & Aggregates. The Main Advantage of RHA replacement by 10% shows high strength growth by 33% when compared to conventional Concrete on 28th Day. In this assignment, we'll conduct tests on both freshly laid concrete and hardened concrete, including a compressive strength test. In this project, the typical components of concrete, such as F.A. and C.A., are substituted by powdered clay brick and crushed glass waste, respectively. Cement is also partially replaced with rice husk ash. M20 is the concrete grade that was employed