OPTIMIZATION OF PARTIAL REPLACEMENT OF NATURAL SAND BY MANUFACTURED SAND WITH METAKAOLIN

Abstract

Compared with previous centuries Concrete is the mostly used in construction. The concrete is a made up of binding material (Cement and Lime etc.), fine aggregate (River Sand) and coarse aggregate (stone). Large amount of concrete is deploying by construction industry all over the world. Generally Conventional concrete is produced using natural sand from river beds as fine aggregate. Now days the availability of sand is very less, because of more utilization and less availability of sand with suitable concrete mixture aggregates. Diminishing natural assets poses the ecological trouble and thus government limitation on sand excavation resulted in shortage and noteworthy increase in its cost. This project present the exaggeration of fragmentary replacement of the natural sand (Sand stone) by manufactured sand with Met kaolin in Moderate Concrete (IS 10262-2009). Concrete mixes were assessed for compressive strength, flexural strength. The normal Portland cement was partially substituted with & Metakaolin by 5 % to 25 % with variation of 5% and natural sand was replaced with manufactured sand (Basalt Sand) by optimum proportions with variation of every 25%. The results indicated that may be there is a boost in the strength of MC nearly 10% and 20% correspondingly with the boost of manufactured sand percentage, Addition of up to 100% of 25% variation & Met kaolin by 5 % to 25 % with variation of 5% replacement yielded comparable strength with that of the control mix.