STUDY ON DURABILITY PROPERTIES OF SELF COMPACTING CONCRETE WITH COPPER SLAG PARTIALLY REPLACED FOR FINE AGGREGATE

Copper slag (CS) is an industrial by-product obtained through the manufacture of copper metal, which is produced in large quantities every year. Natural aggregates are becoming more scarce and their production and consignment is becoming hard day by day. The current trend throughout the globe is to make use of the treated and untreated industrial by-products in concrete. Thus the production of concrete has become an eco-friendly construction process. Self Compacting Concrete (SCC) is a high ? performance concrete which can flow under its own weight and it can pack the entire form work and self-consolidates itself without any external vibration, and hence it accelerate the concrete placement process and reduces the labour needs. This paper deals with the study on the workability and durability properties of SCC with copper slag partially replaced for fine aggregate and containing silica fume as mineral admixture. The SCC is prepared as per the mix design procedures stipulated for SCC in the Guidelines of European Federation of National Associations Representing for Concrete (EFNARC). The SCC was prepared for various proportions of fine aggregate partially replaced by copper slag at 20%, 40%, 60% and 80%. The experimental study were carried out for Workability test on the fresh concrete by using tests like slump flow, T50, V-funnel, L-Box and J-Ring tests. The durability properties of this concrete were examined by acid resistance, sulphate attack and corrosion resistance. The results showed that by partially replacing copper slag for fine aggregate in self compacting concrete would not have any poor effects on its workability and durability properties.