MECHANICAL PROPERTIES OF CONCRETE WITH FLY ASH AND MANUFACTURED SAND

Abstract

Day by day construction sector is undergoing a huge development, for developing a country there should be proper infrastructure to provide all the facilities. Concrete is most important part of the building structure. Cement is the expensive constituent of concrete and also it emits co₂ gas to environment which creates a bad impact on environment. Therefore it is necessary to replace it with suitable alternative. We used fly ash as alternative to cement in 30% as replacement .An alkali activator NaOH is used.On the other hand second expensive material in the concrete is natural sand, there also some issues regarding sand mafia and scarcity of natural sand due to limited sources as per need. Best alternative to natural sand is crush sand. A study is conducted on 100% replacement of natural sand by crush sand.