SUSTAINABLE AND ECONOMICAL CONCRETE BY USING MANUFACTURED SAND AND MINERAL ADMIXTURE

Concrete is one of the most widely used construction materials in the world. However, the production of Portland cement, an essential constituent of concrete, leads to the release of signi�cant amounts of CO2, a greenhouse gas GHG; production of one ton of Portland cement produces about one ton of CO2 and other GHGs. The environmental issues associated with GHGs, in addition to natural resources issues, will play a leading role in the sustainable development of the cement and concrete industry during this century.A sustainable concrete structure is constructed to ensure that the total environmental impact during its life cycle, including its use, will be minimal. Sustainable concrete should have a very low inherent energy requirement, be produced with little waste, be made from some of the most plentiful resources on earth, produce durable structures, have a very high thermal mass, and be made with recycled materials. Sustainable concrete have a small impact on the environment. Concrete must keep evolving to satisfy the increasing demands of all its users. This paper is based on experimental study carried out to obtain Sustainable Concrete by using Manufactured sand as replacement of River Sand and Mineral Admixtures (Metakeolin and Fly ash) as replacement of Cement in Concrete