Fibre Reinforced Self Compacting Concrete
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2018-06-22T09:01:15Z
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The concept of self compacting concrete (SCC) was proposed by prof. okamura at Tokyo. He gave the first prototype by using materials existing in the market. The SSC has now took with enthusiasm across the world in both site and precast work. Practical application has been determined by research on physical and mechanical properties of SCC. Earlier SCC consist of more cementitious paste, the mix required well specialized and controlled placing method to avoid segregation, but the higher cement paste made the better shrinkage and more heat generation.
The basic principle is that it gets compacted by its own weight without entrapped air completely while flowing in the formwork. In higher reinforced structural member, it fills all the voids and gaps to maintain concrete as horizontal level when it is placed. Along with its composition, it consist of similar components like as conventionally vibrated normal concrete that is cement, aggregates, water, admixture. Due to use of more dosage of plasticizer or super-plasticizer leads to reduction in the liquid limit and giving better workability, more the powder content as lubricant for the coarse aggregates. Using viscocity modifying agent will increase the viscocity of concrete for better handling.
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Shivshankar, Rakesh S, Raju Angadi, Virupaksha, 1NH14CV107, 1NH14CV093, 1NH14CV092, 1NH14CV119