World Journal of Environmental Biosciences
World Journal of Environmental Biosciences
2020 Volume 9 Issue 1

Impact Response Analysis of NNRG and RSNN Concrete Structures


Navid Mohammadnia, Hadi Mahdizad Nami
Abstract

Plain concrete is a heterogeneous material (containing fine cement to coarse sand aggregates) in which aggregates are harder than paste. Unlike plain concrete, RPC exhibits high ductility and energy absorption due to the presence of steel fibers. Due to its excellent strength properties, this study examines the impact strength (aka impact toughness) of this concrete and compares it with other types of widely used concrete. Experimental specimens include steel fiber reinforced reactive powder concrete (SFR-RPC) specimen without reinforcement and FRP coating (RSNN) and plain concrete specimen without steel fibers with reinforcement and GFRP coating (NNRG). Specimens consist of concrete beams of dimensions 120 cm × 120 cm × 120 cm. Due to their reaction to free fall of weight from a constant height, they provide information that can be considered as a good basis for comparing the impact performance of concrete. The image processing software is used to measure and compare the behavior of beams.


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