The Effect of Manufactured Sand in Concrete

Abstract

Concrete is the most popular building material worldwide. Concrete is produced with conventional building materials like cement, sand and blue metals. Cement is used as binding material. Sand is used as filler material and the blue metals are used as coarse aggregate. Natural river sand, which is used as filler material in preparing mortar and concrete possess acute shortage in many areas. To solve this problem the natural river sand is replaced by the manufactured sand. In this paper the mix design has been prepared for M20 grade concrete using river sand and manufactured sand as fine aggregate. The fresh and hardened properties of concrete are determined experimentally. The slump cone test and compaction factor test are used to evaluate the workability of the concrete. The compressive strength, split tensile strength and flexural strength values are determined and the relationships between these mechanical properties are found out. The mechanical properties of the concrete are improved while using the manufactured sand as filler material. So, it can be used for the replacement of natural river sand, which solves the problem of environmental burden.