Effect of Size of Aggregate on Self Compacting Concrete of M70 Grade

Abstract

Concrete is a versatile used construction material and concrete has been accepted as a material for construction, researchers trying to improve its quality and enhance its performance. Recent changes in construction industry demand improved durability of structures. There is a methodological shift in the concrete design from a strength based concept to a performance based design. At present there is a large emphasis on performance aspect of concrete. One such thought has lead to the development of Self Compacting Concrete (SCC). SCC is a new kind of High Performance Concrete (HPC) with excellent deformability and segregation resistance. It can flow through self gravity and fill the gaps between reinforcement and corners of moulds without any need for vibration and compaction during the placing process. certain guidelines for fresh properties of SCC comes by The European Federation of Producers and Applicators of Specialist Products for Structures (EFNARC). The present investigation is aimed at developing high strength Self Compacting Concrete of M70 Grade. The parameters of study include grade of concrete and effect of size of aggregate.