An Experimental Study on SSC using mixture of Alccofine and GGBS as Partial Replacement of Cement

A Self Compacting Concrete (SCC) is a concrete that can flow and completely fill the formwork under its own weight, at the same time maintain its homogeneity even if congested reinforcement is present and then attains complete compaction without any need of external vibration (The Concrete Society & BRE, 2005) SCC was first developed in Japan in 1988, since then due to its advantages SCC has gained greater acceptance in United States, Japan and Europe. The major advantage of SCC is that it offers an opportunity to reduce or eliminate problems in concrete placement in complex conditions. By using SCC Construction and placing becomes easier and faster. The primary aim of this study is to investigate the strength properties of SCC mix of M40 grade self-compacting concrete made with ALCCOFINE, GGBS and a mixture of both in different proportions and compare its values with M40 grade conventional concrete. Conventional concrete is designed by using IS: 10262-2009 and SCC is designed using Modified Nan Su method. For this purpose cement is replaced by weight in four different proportions of 2.5%, 5%,7.5 and 10%% by Alccofine and 15%,30%,45% and 60% GGBS respectively. The characteristics of SCC like passing ability, flow ability and resistance to segregation have been checked using slump flow, L box test and V funnel test as per EFNARC guidelines. Specimens are tested for compressiv