Experimental Investigations On Mechanical And Durability Properties Of Blended Concrete

Abstract

Concrete is extensively used as a building material due to its low cost and versatility. We are expecting better results in the current construction scenario in a short time and to finish the work fast. So instead of using ordinary Portland cement here we use specially graded cement OPC 53-S cement which not only gives early age strength but also resists durability in addition to controlling the pollution emitted by cement manufacturing, we use GGBS as cementitious material which is a waste product from steel and iron manufacturing. Since GGBS setting time is slow, the OPC 53-S cement is used to compensate it. This project aims to know the mechanical properties such as compressive strength, size effect, flexural strength, splitting tensile strength and durability properties of concrete such as Sorpitivity, water absorption and carbonation by replacing GGBS in cement at different percentage (0%, 10%, 20%, 30%, 40%, 50%) levels by testing at different (3,7,14,28,56 and 90 days) age of concrete. And to know the micro structural and crystalline properties of (7 and 28 days) age of concrete by means of X-ray diffraction test.