OPTIMUM PARTIAL REPLACEMENT OF CEMENT IN CONCRETE WITH WASTE MARBLE DUST IN CONJUNCTION WITH SUPER PLASTICIZERS

Efforts have been made over years to make concrete production sustainable and environment friendly.Notion of new materials as substitute for the conventional materials have supported these efforts to a large extent. In the present investigation,marble dust obtained after processing of marble waste has been used as a filler material i.e. as replacement of fine aggregate. This study investigates the optimum partial replacement of cement in concrete with marble dust in conjunction with super-plasticizers. This investigation proved the feasibility of marble dust as an economic and eco-friendly replacement of cement. The slump and compressive strength of the concrete was improved when 5%, 10% & 15% of weight of cement was replaced with marble dust in preparation of M20 concrete. This paper provides the scope for more research that if the marble dust is used as a replacement of cement in conjunction with super-plasticizers ,the problem of sustainable, economical and environment friendly concrete can be resolved.