Paper Key : IRJ************446
Author: Subhasree Dutta Sikder
Date Published: 15 Jul 2024
Abstract
The term reactive powder concrete (RPC) has been used to described a fiber reinforced, super plasticizer, silica fume-cement mixture with very low water -cement ratio, characterized by the presence of very fine aggregates instead of ordinary aggregate. Fibers are incorporate in RPC in order to enhance the fracture properties of the composite materials. Reactive powder concrete is not yet available with the limited research in this area. Reactive powder concrete is an ultra-high-performance concrete (UHPC) developed years ago by Bouygues with the aim to build strong, durable and sustainable structure. Some differences can be underline between the RPC and high-performance concrete (HPC); that is to say RPC exhibits higher toughness, lower porosity and lower permeability compared to HPC. Microstructural observation confirm that silica fume enhances the fiber -matrix interfacial characteristics, particularly in fiber pullout energy. Reactive powder concrete (RPC) is an ultra -high strength composite material, its made of mixture of cement, quartzite powder, Nano silica, silica fume, fly ash, GGBS, super plasticizer, and steel fiber. The terms of reactive powder means that all the powder components in the RPC are chemically reactive, has been used to illustrate Fibers reinforced, super plasticized, silica fume -cement mixture with very low water cement ratio. It is having compressive strength 142Mpa.KEY WORD: - OPC, Silica fume, Quartzite powder, Compressive strength, Workability, Steel fiber, Super plasticizer, Nano particle, compressive strength.
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