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Potential Application Areas for Thermoplastic Composites
Published in R. Alagirusamy, Flexible Towpregs and Their Thermoplastic Composites, 2022
J. Krishnasamy, R. Alagirusamy, G. Thilagavathi
Some of the textile reinforced concrete structures are bridges, pillars and road guards made with Kevlar or jute reinforced concretes. The reinforced concrete is made into any form and is extremely versatile, and it can be used for developing buildings, bridges and other structures (Rajendran et al. 2020). The glass reinforced plastics with low elastic modulus can be incorporated in building construction by the application of double curvature and folded-plate structures. The alkali-resistant glass fibres are used as reinforcement in cement-based composites for mostly non-load bearing applications. Lightweight composite panels have especially been used for partitioning and similar applications. The carbon fibre reinforced plastics (CFRP) have also been used for developing lightweight structures, including a number of bridges. But the cost is the constrain factor for vast application of fibre reinforced plastics. Different fabric forms such as woven, knitted, nonwoven, stitched and 3D fabrics are used as reinforcing structures. By converting fibrous assemblies into nonwoven fabric by means of chemical, thermal and mechanical methods, different densities of fabric could be obtained ranging from 10g/cm2 to 100g/cm2 (Rajendran et al. 2020). For example, a textile reinforced pedestrian bridge is constructed in Kempten, Germany as shown in Figure 14.4. Similarly, building structures have been made up of textile reinforced concretes.
Experimental investigations of shallow mechanical and bonded anchors in textile reinforce concrete
Published in Airong Chen, Xin Ruan, Dan M. Frangopol, Life-Cycle Civil Engineering: Innovation, Theory and Practice, 2021
M. Hoepfner, P. Spyridis, M. Bessling, J. Orlowsky
The relatively new composite material Textile Reinforced Concrete (TRC) offers several advantages compared to steel reinforced concrete in terms of life-cycle of building materials. Using technical textiles produced out of glass, basalt or carbon fibres instead of steel as reinforcement leads to lighter and thinner components with similar load bearing capacity compared to steel reinforced concrete. The associated material savings can significantly reduce the CO2 footprint. In addition, the problem of steel corrosion is eliminated.
Evaluation of mean performance of cracks bridged by multi-filament yarns
Published in Günther Meschke, René de Borst, Herbert Mang, Nenad Bićanić, Computational Modelling of Concrete Structures, 2020
M. Konrad, J. Jerabek, M. Vorechovsky, R. Chudoba
Textile reinforced concrete (TRC) has emerged in the last decade as a new composite material combining the textile reinforcement with cementitious matrix. Its appealing feature is the possibility to produce filigree high-performance structural elements that are not prone to corrosion as it is the case for steel reinforced concrete. In comparison with other composite materials, textile reinforced concrete exhibits a high degree of heterogeneity and imperfections that requires special treatment in the development of numerical models.
Designing composite poly-amide cord knitted fabrics for reinforcing concrete beams
Published in The Journal of The Textile Institute, 2023
H. M. Darwish, Z. M. Abdel-Megied, Manar Y. Abd El-Aziz
According to previous research, the compressive strength of plain concrete is very high, while the tensile strength is very low. Furthermore, it has been discovered that corrosion attack problems in steel-reinforced concrete constructions lead to the loss of structural integrity after weakening the concrete’s protective layer. Using carbon fibers or fiberglass fabrics that have been reinforced with cementitious matrix or another alkali-resistant matrix, for example, textile-reinforced concrete is a brand-new, high-tech composite material. Additionally, it is more advantageous than steel in a number of ways, including corrosion risk reduction or elimination owing to its lightweight, thin, and free-form frameworks (Abd-El-Aziz, 2023).
Interfacial performance and durability of textile reinforced concrete
Published in The Journal of The Textile Institute, 2018
Hafsa Jamshaid, Rajesh Mishra, Jiří Militký, Muhammad Tayyab Noman
Conventional steel in the reinforcement of concrete is most common for construction despite some of the historical disadvantages of it being vulnerable to durability and corrosion attack. Numerous remedial methods are applied to overcome the lacking of this construction material, such as improving the concrete cover, which results in an overweight structure (Cheung & Tsang, 2010). In recent past, the quest to improve the sustainability of reinforced concrete was answered by the development of Textile Reinforced Concrete (TRC), which provides reinforcement of noncorrosive textile materials to the finely grained concrete matrix Saikia, Kumar, Thomas, Najunda, & Ramaswamy (2007). It has evolved as a perfect alternative with excellent properties of thin and lightweight structures along with corrosion resistance. Textile composites have certain other advantages like high strength-to-weight ratio, ease of handling, drapability, speed of installation, visual impact, and reversibility. (Devi, 2015). For the improvement of tensile and flexural strength of the concrete material, reinforced textile concrete is used worldwide; it also adds structural integrity to the structure. The textile materials are used in combination with concrete for improvement of cracking control due to drying and plastic shrinkage (Serdar et al., 2015).They are effective in controlling and reducing water permeability of concrete, therefore, water bleeding is reduced accordingly. As concrete is brittle in nature and weak in tension, the concept of having a combination of concrete and fibers to improve and impart desired characteristics is very novel. Research is carried out in order to find out new fiber-reinforced concretes (Ochi, Okubo, & Fukui, 2007; Wang, Wu, & Li, 2000). Varieties of fibers are used to increase toughness and prevent cracking of cement. Construction materials with properties of energy efficiency, sustainability, and eco-friendliness are sought around the world. Energy efficiency is related to lower energy spent in producing the reinforcing material.
Experimental investigation on shear behaviours of textile reinforced concrete beams
Published in European Journal of Environmental and Civil Engineering, 2023
Mai Chi Trung Nguyen, Cao Thanh Ngoc Tran, Huy Cuong Nguyen, Dang Dung Le, Xuan Huy Nguyen
In the last decades, textile-reinforced concrete has been studied extensively. Due to the thin and lightweight nature of textile-reinforced concrete, it can be used to construct newly fabricated structural elements. Another application of textile-reinforced concrete is strengthening and retrofitting concrete structures. By combining with concrete mortar, the textile creates external strengthening grids. Textiles could be used as both internal and external shear reinforcements. The traditional textile application repairs and strengthens concrete structures by applying external textile-reinforced concrete layers (Asgari et al., 2019; Contamine and Si Larbi, 2016; Zargaran et al., 2023). Textile grids are the main component to resist the applying forces, and fine-grained concrete is the binding material. These research studies for shear strengthening by textile-reinforced concrete could be named: Triantafillou and Papanicolaou (2006), Blanksvard et al. (2009), Al-Salloum et al. (2012), Azam and Soudki (2014), Loreto et al. (2015), Ombres (2015), Trapko et al. (2015), Awani et al. (2016), Aljazaeri and Myers (2017), Brückner et al. (2008), Tetta et al. (2018), Tetta et al. (2016), Guo et al. (2021) and Zhang et al. (2019) 's ones. Up to date, few studies related to using textiles as shear reinforcements have been reported. Preinstorfer et al. (2021) investigated using carbon textiles as internal shear reinforcements in thin-walled ultra-high-performance T-shaped concrete beams in an experimental program. The study included nine beams with different aspect ratios and found that a thicker web and flange increased the shear carrying capacity by 20%. Prestressing of CFRP rods significantly improved shear carrying capacity, but the reduced effectiveness of textile reinforcement should be considered in design models for economic efficiency. Three large-scale I-beams with textile as shear reinforcements and CFRP bars as longitudinal reinforcements were tested by Bielak et al. (2020). Le et al. (2021) examined the torsional behaviour of four concrete beams with glass textile grids as internal transverse reinforcements. The experimental results found that the increase in the number of textile grids helped to delay the reduction in the torsional moment strengths. Concrete structures reinforced with longitudinal FRP and other materials have been extensively studied for their load-bearing behaviour and post-cracking performance. Rimkus et al. (2019) proposed a hybrid reinforcement system of GFRP and steel bars, which was experimentally investigated, and a conceptual model and crack width prediction method were proposed. Structures with hybrid reinforcement exhibit a pseudo-hardening stage after steel bars yield, which is more pronounced in those with low equivalent reinforcement ratios and higher GFRP bar area, contributing to better stress redistribution after cracking. However, combining FRP with steel reinforcement significantly reduces the structure’s durability, especially in highly corrosive environments. Recently, Nguyen et al. (2022) studied the shear behaviour of eight FRP bar-reinforced concrete beams with aspect ratios of 2.3 and 2.8 and found that those reinforced with textiles performed similarly to those with FRP transverse reinforcements.