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Materials for Self-Compacting ConcreteSelf compacting has material requirements same as conventional concrete, but it requires admixtures to enhance the workability. Types of materials required and their properties for self-compacting concrete is discussed. Following are the materials for self compacting concrete:
Cement for self compacting concreteAll types of cement conforming to EN 197 are suitable. Selection of the type of cement will depend on the overall requirements for the concrete, such as strength, durability etc., C3A content higher than 10% may cause problems of poor workability retention. The typical content of cement is 350-450 Kg/m3 More than 500 Kg/m3 cement can be dangerous and increase the shrinkage. Less than 350 Kg/m3 may only be suitable with the inclusion of other fine filler, such as fly ash, pozzolana, etc.
Fig: Self Compacting Concrete