Abstract
Textile-reinforced concrete (TRC) as a novel high-performance composite material can be used as a strengthening material and component bearing load alone. The flexural performance of TRC beams strengthened with textile reinforcement such as carbon tows was experimentally examined and associated with those of steel-reinforced concrete (SRC) beams. Through four-point bending tests, this research explores the effects of textile layers and dosages of short textile fibre on the flexural strength of concrete beams. A total of 64 prism samples of size 100 mm × 100 mm × 500 mm were made, flexure-strengthened, and tested to evaluate various characteristics and the efficiency of TRC versus SRC beams. TRC beams performed exceptionally well as supporting material in enhancing concrete’s flexural capacity; in addition, TRC’s average ultimate load effectiveness was up to 56% than that of SRC specimens. Furthermore, the maximum deflection was about 37% lesser than SRC beams. The results showed that by increasing the number of layers, the TRC’s effectiveness was significantly increased, and the failure mode became more ductile.
Highlights
Crystals 2021, 11, 1178. https://Concrete is considered a brittle material due to its low energy absorption capacity and tensile strength
Various reinforcement patterns in Textile-reinforced concrete (TRC) beams were evaluated for behaviour and toughness using four-point bending tests
The findings reveal that increasing the amount of textile reinforcement in a beam increases its flexural strength and bending capacity
Summary
Crystals 2021, 11, 1178. https://Concrete is considered a brittle material due to its low energy absorption capacity and tensile strength. Structural elements made of concrete, such as beams, are primarily subjected to impacts and bending. These components must have increased resistance to deformation and impact loads. Discontinuous fibres are employed inside the concrete, mostly as secondary reinforcement. This is not a replacement technique for the main steel reinforcements [4,5]. Several types of fibres have been utilised to strengthen and rehabilitate RC structural elements for decades. These fibres are strong against corrosion and result in several structural advantages, including lower cover dimensions and, as a result, structural element thickness [6]. According to Tysmans et al [7], because textile reinforcement has high tensile strength, it might potentially replace steel as the primary reinforcement
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