DEVELOPMENT & PERFORMANCE OF SELF-COMPACTING CONCRETE

Abstract

Traditional concrete (i.e. normal concrete) possesses some problems, such as — improper consolidation, inability to fully fill the formwork, noise level and mainly the compaction of concrete in case of congested reinforcement. For several years beginning in 1983, the problem of the durability of concrete structures was a major topic of interest in JAPAN. To make durable concrete structures, sufficient compaction by skilled workers is required. SCC is today a pretty well known technology. Japan Society of Civil Engineers (JSCE) has played very significant role in the development, mix design approach and measurement techniques of SCC. Since the development of SCC in 1988, investigations have been carried out from the viewpoint of making it a standard concrete. Fly ash based SCC has been produced in the country with water/binder (W/b) ratio by weight of about 0.3 and above so far. The present thesis report is based on water/binder ratio below 0.30.