Search

Self compacting concrete is a type of self flowable compacting concrete. It compact with its property. It is an innovative type concrete it does not requires additional vibration for compaction. It is useful for concreting in deep and narrow columns and a very congested area. It also used in high rebar structures, in bridges and deep earthwork areas. One of the limitations of SCC is high Portland cement is used for the preparation of mixtures, it increases the cost of construction. In this type of concrete chemical admixtures used for attaining designed strength and it also increases the cost. For this purpose, mineral admixtures are introduced to reduce cost and also increases the fresh concrete properties, mechanical properties, durability, and other purposes. Because mineral admixtures are mostly waste materials or industrial by-products, if it used as a proper replacement material for Portland cement, it reduces the cost and also the hydration process. Fly ash, Ash of Rice husk, Silica fume, Metakaolin, Granulated blast slag are some of the mineral admixtures frequently used partially replacement on Portland cement. Chemical admixtures such as polycarboxylate based superplasticizer are mostly used in all the test mixtures. It acts as a water reducer in concrete. It also increases the workability. Mineral admixtures also increased the strength, control segregation, and bleeding and increased the concrete properties. A review on SCC with various admixtures in both chemical and minerals, its effects on concrete with different mix proportions fresh concrete property and hardened concrete properties were discussed briefly in this paper. [ABSTRACT FROM AUTHOR]