In: Civil Engineering
Self compacting concrete is a advancement over the conventional concrete, in conventional concrete certain compaction methods are needed to achieve certain degree of durability denseness and compactness. By compacting methods the degree of compactness was not uniform and that to full compaction cannot be achieved due to different reasons that depend on the type of construction, so therefore researchers at the University of Tokyo, Japan, started in late 1980 to develop self compacting concrete and by the early 1990's they had developed and used the self compacting concrete that does not require vibration for full compaction. Due to this several European countries also recognized the significance and potentials of self compacting concrete developed by Japan, so they founded certain organizations like EFNARC and started to develop that concrete with their own set of guidelines. The self compacting concrete offers following benefits from conventional concrete:
1 Relative faster construction.
2 Better surface finish.
3 It gives greater freedom for designers to adopt thin sections.
4 More useful in highly reinforced sections.
5 Improved durability.
6 Easier placing.
7 No manpower required for compacting.
References:
1 Concrete technology by A.M.Neville, J.J.Brooks ELBS with longman 1987.