Flexural Behavior of a Novel Textile-Reinforced Polymer Concrete.

Daniel Heras Murcia,Eslam Soliman,Bekir Çomak,Mahmoud M Reda Taha

doi:10.3390/polym14010176

Daniel Heras Murcia, Eslam Soliman + Show 2 more

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https://doi.org/10.3390/polym14010176

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Abstract

Textile reinforced concrete (TRC) has gained attention from the construction industry due to its light weight, high tensile strength, design flexibility, corrosion resistance, and remarkably long service life. Some structural applications that utilize TRC components include precast panels, structural repair, waterproofing elements, and façades. TRC is produced by incorporating textile fabrics into thin cementitious concrete panels. Premature debonding between the textile fabric and concrete due to improper cementitious matrix impregnation of the fibers was identified as a failure-governing mechanism. To overcome this performance limitation, in this study, a novel type of TRC is proposed by replacing the cement binder with a polymer resin to produce textile reinforced polymer concrete (TRPC). The new TRPC is created using a fine-graded aggregate, methyl methacrylate polymer resin, and basalt fiber textile fabric. Four different specimen configurations were manufactured by embedding 0, 1, 2, and 3 textile layers in concrete. Flexural performance was analyzed and compared with reference TRC specimens with similar compressive strength and reinforcement configurations. Furthermore, the crack pattern intensity was determined using an image processing technique to quantify the ductility of TRPC compared with conventional TRC. The new TRPC improved the moment capacity compared with TRC by 51%, 58%, 59%, and 158%, the deflection at peak load by 858%, 857%, 3264%, and 3803%, and the toughness by 1909%, 3844%, 2781%, and 4355% for 0, 1, 2, and 3 textile layers, respectively. TRPC showed significantly improved flexural capacity, superior ductility, and substantial plasticity compared with TRC.

Highlights

To overcome the above-mentioned limitations, this study examines the flexural behavior of an innovative textile reinforced polymer concrete (TRPC) that is produced using basalt fiber textile fabrics, well-graded fine aggregate, and methyl methacrylate (MMA) polymer as a binder
The above experimental investigations showed the improved flexural performance of TRPC represented by improved strength and superior ductility and plasticity compared with Textile reinforced concrete (TRC)
Further research is warranted to identify the optimal location and numufacture the specimens, PC incorporating a different number of basalt fiber textile fabric ber of the in the composite

Summary

Introduction

Textile reinforced concrete (TRC) is a cementitious composite that has been recently introduced to civil infrastructure as new precast elements and to strengthen deteriorated structures due to its lightweight, durability, design and installation flexibility, and inand out-of-plane structural performance [1,2,3,4,5]. Potential applications for TRC include architecture façade, noise/water protection panels, sandwich walls, loadbearing shell structures, storage units (e.g., tanks and silos) [1,10], and the strengthening of existing reinforced concrete structures [11,12,13,14,15,16,17,18,19,20,21]. Studies showed that TRC could replace fiber-reinforced polymer (FRP) composites for flexural and shear retrofitting with similar capacity enhancement but improved durability [22,23]

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