concrete (SCC) was first
developed in Japan
(in the mid to late 1980s
as a means to create uniformity in the quality of concrete by
ever present problem of insufficient compaction by a workforce that was
skilled labour and by the increased complexity of designs and
details in modern structural members. Durability was the main concern
purpose was to develop a concrete mix that would reduce or eliminate
for vibration to achieve consolidation.
concrete achieves this
by its unique fresh
state properties. In the plastic state, it flows under its
own weight and maintain homogeneity while completely filling any
passing around congested reinforcement. In the hardened state, it equals
excels standard concrete with respect to strength and durability.
use of SCC concrete has been increasing in the United States
also during the last
5 years. Currently the technology is being primarily applied to the
industry. Other segments being targeted are flatwork, columns and wall
construction. The applications of SCC are many, limited only by the
knowledge of it, ability to produce it and acceptance of it.
self-compacting concretes have compressive strengths in
the range of 60-100N/mm².
However Ultra High
Performance Self-Compacting Concrete (UHPSCC) with
a strength about 150
N/mm² have also been successfully developed.