Mix Design Procedure for Self Compacting Concrete

Abstract

This paper proposes a rational mix design procedure for Self Compacting Concrete (SCC). From the strength and workability studies conducted on SCC in the present investigation, it was noted that the parameters viz., packing factor, effective size of aggregate, fine aggregate - total aggregate ratio, fly ash content, cement content and water content influence the mix proportion to a great extent. It was hence felt that these parameters, which were assumed in case of Nan Su method of mix design, are of reasonable importance and a rational mix design methodology modifying the existing Nan Su method needs to be proposed. This rational mix design procedure can be adopted for designing any grade of self compacting concrete. In the present work a simplified and direct mix design methodology for SCC is proposed based on experimental observations.