Thursday, 15 January 2015

EXPERIMENTAL INVESTIGATION AND PROPERTIES OF REACTIVE POWDER CONCRETE




P.B.SIVA SANKAR a, B.VENKATESAN b
a Assistant professor, Department of Civil Engineering, Vickram college of Engineering, Madurai, India
b Assistant professor, Department of Civil Engineering, University College of Engineering, Ramanathapuram, India



     Reactive powder concrete (RPC) is the term has been used to describe a fibre reinforced , super plasticized, silica fume- cement mixture with reduced water-cement ratio, characterized by the presence of very fine quartz sand instead of ordinary aggregate. In this investigation the mechanical property performance of RPC has been investigated by varying the water dosage, silica fume dosage, and with addition of 1%, 2%, 3%, 4%and 5% crimped steel fibres.RPC have also been investigated under different combinations of normal water curing, hot water curing and high temperature curing, after this 7 days of curing regimes, the specimens were cured in water until the testing. Test results indicate that compressive strength of RPC increases significantly after heat treating compared to the standard water curing. Temperature, Rate of heating and Rate of curing also influenced the mechanical performance of RPC considerably.

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