A COMPARATIVE STUDY ON MECHANICAL PROPERTIES OF SCC BY PARTIAL REPLACEMENT OF CEMENT WITH FLY ASH AND GGBS WITH THE USE OF GLASS FIBERS

Abstract

Concrete is a versatile material that can be used for construction of all kinds or shapes of structural elements. Self Compacting Concrete (SCC) was developed by the Japan researchers in the year 1989. SCC is a special type of concrete that is competent or capable to flow and consolidate under its own weight without any segregation and bleeding between the reinforcing bars. SCC is one of the widely used types of concrete in the current world because it makes the work easier and it does not bleed at the joints of the moulds. In this work, an attempt has been made to prepare a high strength SCC of grade M60 by partially replacing the cement content with the untreated industrial byproducts like fly ash & ground granulated blast furnace slag (GGBS) and also by replacing 100% of natural sand with manufactured sand (M.Sand). With the use of these industrial byproducts, it results in an eco-friendly environment and also solves the problem of its disposal. The present work deals with the comparative study on mechanical properties like compressive strength, split tensile strength and flexural strength of SCC for various percentages of powder contents with the use of glass fibers at 0%, 0.1% & 0.2% to the total volume of the concrete mix. In this study two types SCC mixes were prepared namely, Conventional SCC in which cement content was replaced by 30% with fly ash and Triple blended SCC in which cement content was reduced to 50% & the rest of the cement content was replaced with fly ash & GGBS by 25% each. The specimens are casted, cured & tested for the required number of days.