Abstract
Self Compacted Concrete (SCC) is an advanced approach for the purpose of placing of concrete.It is a concrete which does not require any external force,vibration or compaction and which is highly flowable, formwork is filled without any compaction and resistance to segregation. Workability tests for SCCin fresh state are Slump-flow, L-Box, J-Box,V-Box are carried out.By using recommended EFNARC guidelines the mix proportion of concrete was prepared for M40 grade concrete is 1:1.75:1.87.Water cement ratio of 0.35 is constant.In this paper Natural Coarse Aggregate(NCA) is partially replaced upto 50% with 10% interval by Recycled Coarse Aggregate(RCA).RCA is prepared by crushing of cubes which are taken from concrete technology lab. Construction and Demolition waste is also used as RCA. RCA is submerged in water for 24 hours before using for the concrete mix,this is because RCA absorbs more waterdue to adhered cement mortar to aggregate. The various tests and their results are shown in this paper.
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