Eactive powder concrete (RPC) is the type of cementitious composite materials developed by the technician division of Bouygues, in the early 1990s. The absence of coarse aggregate was considered by inventors to be key aspect for the microstructure and performance of RPC in order to reduce the heterogeneity between cement matrix and aggregate. Reactive Powder Concrete (RPC) is an high strength and high ductility composite material with advanced mechanical properties. The purpose of this

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... tion is to determine the strength variations in RPC and MRPC. MRPC is carried out with an introduction of graded aggregate (8-10mm) and deal with steel fibers as replacement of coarse aggregate. Our investigation also deals with the various applications of each mix based on cost analysis and to determine the suitable mix proportion. It is done by carrying a comparative study of RPC with cement, quartz sand, silica fume and modified RPC with cement, silica fume, quartz sand and superplasticizer partially replace with coarse aggregate and addition of steel fibre called as RPCCAF. Hot water curing is carried so that the quartz react with it and produce higher strength. So as to make this RPC more economical and feasible without much reduction in its mechanical properties.