Chapter: Civil : Construction Materials: Concrete

Self Compacting Concrete

Fresh concrete that can flow around reinforcement and consolidate within formwork under its own weight that exhibits no defects due to segregation or bleeding.

Self Compacting Concrete

� Fresh concrete that can flow around reinforcement and consolidate within formwork under its own weight that exhibits no defects due to segregation or bleeding.

� The guiding principle for this type of concrete is that the sedimentation velocity of a particle is inversely proportional to the viscosity of the floating medium in which the particle exists.

Benefits of SCC

� Faster construction

� Reduction in site manpower

� Safer working environment

� Improved aesthetics

� Easier placing

� Improved durability

Applications

� Two anchorages of Akashi-Kaikyo (Straits) Bridge, Japan. The volume of the cast concrete in the two anchorages amounted to 290,000 m3

� The highest use of SCC in India was done at Delhi metro project. About 10000 m3 of SCC has been Used.

� At Kaiga nuclear power plant, SCC of Characteristic strength 30 MPa was used.

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Civil : Construction Materials: Concrete : Self Compacting Concrete |