Experimental Study on Tensile Performance of Basalt TRC Plate

DU Yunxind, ZHANG Mengmeng, ZHOU Fen

Abstract

Three kinds of fine-grained concrete matrix with chopped steel fibers of 0%,0.8% and 1.6% volume ratios were used to fabricate the basalt TRC plates, and various prestressing were exerted on basalt textile layers. The stress-strain relationship and cracking patterns of TRC plate were investigated by means of uniaxial tensile tests. The obtained results indicate that, with the increase of the number of textile layers, cracking strength of TRC plate decreases, the peak load and strain capacity tend to increase, and cracking patterns are greatly improved. In addition, the increased cracking strength, reduced strain capacity and undesirable cracking patterns are observed with the increase of prestressing, while no obvious change occurs for peak load. Furthermore, the tensile performance of basalt TRC plate is correlated with volume ratios of chopped steel fibers and prestressing. When chopped steel fibers with 1.6% volume ratio are mixed in the matrix and appropriate prestress force is applied to textile layers, the basalt TRC plate exhibits relatively good tensile performance.

 

Keywords: basalt textile,  TRC plate,  tensile testing,  textile layers,  prestressed,  steel fibers


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References


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