Effect of Size of Aggregate and Fines on Standard And High Strength Self Compacting Concrete

Abstract

The present investigation aims at developing standard and high strength Self Compacting Concrete (SCC) with different sizes of aggregate based on Nansu’s mix design procedure. The results indicated that Self Compacting Concrete can be developed with all sizes of graded aggregate satisfying the SCC characteristics. The mechanical properties viz., compressive strength, flexural strength and split tensile strengths were studied at the end of 3, 7 and 28 days for standard and high strength SCC with different sizes of aggregate. It was noted that with 10mm size aggregate and 52% flyash in total powder the mechanical properties were superior in standard SCC, while 16 mm size aggregate with a 31% flyash in total powder improved the properties of high strength SCC.