Flexural Performance of Prefabricated Ultra-High-Strength Textile Reinforced Concrete (UHSTRC): An Experimental and Analytical Investigation

Abstract

Textile Reinforced Concrete (TRC) is a prefabricated novel lightweight high-performance composite material that can be used as a load-bearing or non-load-bearing component of prefabricated buildings. Making TRC with Ultra-High-Strength Concrete (UHSC) (≥100 MPa) can be considered as a potential improvement method to further enhance its properties. This paper investigated the performance of Ultra-High-Strength Textile Reinforced Concrete (UHSTRC) under flexural loading. A detailed experimental program was conducted to investigate the behavior of UHSC on TRC. In the experimental program, a sudden drop in load was observed when the first crack appeared in the UHSTRC. A detailed analytical program was developed to describe and understand such behavior of UHSTRC found in experiments. The analytical program was found to be in good agreement with the experimental results and it was used to carry out an extensive parametric study covering the effects of the number of textile layers, textile material, textile mesh density, and UHSTRC thickness on the performance of UHSTRC. Using a high number of textile layers in thin UHSTRC was found to be more effective than using high-thickness UHSTRC. The high modulus textile layers effectively increase the performance of UHSTRC.

Control of Cracking in Textile Reinforced Concrete with Unresin Carbon Fibers

“…Further, four 15 × 35 × 500 mm 3 ties were cast for uniaxial tensile testing. The dimensions of the ties are within the range found in the literature [ 37 , 45 , 46 , 47 , 48 , 49 , 50 , 51 ]. The thickness is more than three times the maximum aggregate size, to avoid scale effects.…”

Tensile Behavior of Basalt-Fiber-Grid-Reinforced Mortar before and after Exposure to Elevated Temperature

“…The cementitious material reinforced by textile exhibited high tensile strength, excellent strain-hardening behavior, and a multiple-cracking characteristic, which can be applied to strengthen structural members and prefabricate thinwalled members [4,5]. In order to realize the reliable application of the textile-reinforced cementitious material in engineering, numerous studies have been conducted to evaluate the tensile and bending properties, where the stress-strain relationship, tensile/bending strength, and cracking and failure modes were discussed in detail [6][7][8][9][10]. Another kind of grid reinforcement material is a fiber-reinforced polymer (FRP) grid, whose polymer content is much higher than that of textile and which can also be used to reinforce the cementitious material.…”