Study on model of flexure response of carbon fiber textile reinforced concrete (CTRC) sheets with short AR-glass fibers

Zhang, Qin; Yang, Qun; Li, Wenjie; Gu, Xiaoqiang; Dai, Huanhuan

doi:10.1016/j.cscm.2022.e01791

Cited by 9 publications

(9 citation statements)

References 22 publications

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“…17-22. All GC-WP models exhibited a narrower range of compression to tension stresses than their AC-WP counterpart, owing to the absence of fiber textile strengthening present in the AC [13] that supported more flexural behavior [30,31]. Figure 17 shows the stress contour of GC-WP1 (two horizontal openings) owing to the push load.…”

Section: Results and Discusssionmentioning

confidence: 99%

Behavior of geopolymer concrete wall panels with square opening variations subjected to cyclic loads

Saloma,

Nurjannah,

Hanafiah

et al. 2023

J Appl Eng Science

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Masonry walls are non-structural elements that can increase the stiffness and strength of building structures subjected to lateral loads. Reinforced concrete (RC) wall systems are structural elements that have been developed to improve structural performance. Because the use of large amounts of cement in RC is not environmentally friendly, cement-free concrete called geopolymer concrete (GC) has been developed. Research on GC structural beam-column joints and slab joints has proven that GC fulfils the strength requirements for structural elements. However, previous studies have not addressed the performance of reinforced GC wall panels (WPs) under cyclic loads. Therefore, this study filled the gap with the novelty of investigating the performance of reinforced GC structural WPs subjected to cyclic lateral loads. Numerical analysis was used to determine the performance of GC-WPs in resisting cyclic lateral loads, and an aerated concrete wall panel (AC-WP) model was used for verification. The study investigated GC-WPs that were 1500 mm wide and 200 mm thick, varying in solidity such that one was entirely solid (GC-WP1) and two had square openings in horizontal and vertical configurations (GC-WP2 and GC-WP3, respectively). The cyclic loading history referenced FEMA 461. The analysis resulted in hysteretic curves, ductility ratios, and stress contours. GC-WP1 achieved the highest maximum lateral loads (73,994 kN and-67,225 kN) compared to the other GC-WP models, with a high ductility ratio of 14,681. Results show that GC has the potential for use in WPs to improve their resistance to lateral cyclic loads.

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Section: Results and Discusssionmentioning

confidence: 99%

Behavior of geopolymer concrete wall panels with square opening variations subjected to cyclic loads

Saloma,

Nurjannah,

Hanafiah

et al. 2023

J Appl Eng Science

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“…Short fibres improved CTRC sheet cracking load by 80.35%. The ultimate bending force increased more than six times compared to specimens without carbon fibre fabrics and short fibres [4]. Uses 145 GSM AR-Glass fibre mesh and the specimens were cast with and without fibres at 3, 4, and 5 fibre levels.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental study on mechanical properties of Textile Reinforced Concrete (TRC)

Karthikeyan,

Margret,

Vineeth

et al. 2023

E3S Web Conf.

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Textile-reinforced concrete (TRC) is a variant of reinforced concrete in which textiles are used in place of steel reinforcing bars. Reinforcing the concrete with steel means increasing its tensile strength, but steel also corrodes and wears out over time. The TRC is a novel idea that has the potential to overcome these drawbacks. TRC is a composite reinforcing material that is made from cement and has the benefits of being resistant to corrosion, having a high bearing capacity, and performing well in terms of its fracture limit. The principal function of TRC in buildings has been as reinforcement and as a means of enhancing the ductility and performance of concrete. This experimental work utilizes a 145 gsm (grams squared per meter) alkali-resistant (AR) glass fiber textile mesh. Specimens were cast with and without fibers, and the number of layers was increased from 1 to 3 at 25 mm spacing. In this experimental work, the mechanical behavior of TRC was investigated by conducting tests on its impact, compressive, and flexural strengths. From these results, the TRC specimen exhibits more flexibility than the control specimen. The TRC specimen bends under force and returns to a new position when the load is removed, indicating a good energy absorption capability. As a result, it infers that the specimen with fibrehave the capacity to withstand a higher maximum load than conventional specimens. TRC has a greater fracture control system compared to conventional steel-reinforced concrete.

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“…[7][8][9][10] Adding short fibers uniformly dispersed throughout the volume into the concrete matrix hinders microcrack expansion by creating a bridge between crack edges. [11][12][13] This effect occurs in load/deflection curves after the elastic linear phase, where microcracks develop and increase in stress.…”

Section: Introductionmentioning

confidence: 99%

“…Adding short fibers uniformly dispersed throughout the volume into the concrete matrix hinders microcrack expansion by creating a bridge between crack edges. 11–13 This effect occurs in load/deflection curves after the elastic linear phase, where microcracks develop and increase in stress. Additionally, after the post-peak (maximum load) point, fibers interfere with their tensile strength until the composite fails.…”

Section: Introductionmentioning

confidence: 99%

Jute textiles with enhanced interfacial bonding as reinforcement for cementitious composites

Kohan,

Fioroni,

Azevedo

et al. 2024

Journal of Composite Materials

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In fabric-cement composites, the limited impregnation of cementitious matrix products due to thick and twisted yarns leads to premature failure due to poor bonding strength. In addition, cellulosic textile reinforcements have many challenges about durability, appearance of voids at mortar-fiber interface, and rise of microcracks. Textile performances were evaluated in different conditions: coated with micro-silica powder, pretreated, and without any treatment. This study also assessed how textile weave structure and yarn geometry configuration affect the interactions of two different jute textiles (Close Weave Jute Fabric – CJF and Open Weave Jute Fabric - OJT) when used as reinforcement in mortar matrix. Textile characterization and composite analysis (by four-point bending tests, SEM/EDS, and physical tests) were conducted to assess the different textile reinforcements, the mechanical behavior of produced composites, and visual and chemical compounds analysis of the interfacial transition zone between textile and mortar matrix after silica coating. Micro silica powder coating was deemed necessary to address limited impregnation and to avoid telescope pull-off. Weave structure determined the difference between jute fabrics to reinforce mortar matrix, being only OJF (larger interstices in the weave structure) with micro silica coating allowed a better matrix interaction and stood out from the other textiles and achieved the best specific energy of all samples, (4.28 ± 0.91) kJ.m-2. Calcium and silicon inside the yarn interstices and textile-matrix interface indicate the formation of strong bonds by calcium-silicate-hydrate products. The silica coating treatment enhanced formation of strong bonds, which demonstrated future promise for natural fiber application.

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Study on model of flexure response of carbon fiber textile reinforced concrete (CTRC) sheets with short AR-glass fibers

Cited by 9 publications

References 22 publications

Behavior of geopolymer concrete wall panels with square opening variations subjected to cyclic loads

Behavior of geopolymer concrete wall panels with square opening variations subjected to cyclic loads

Experimental study on mechanical properties of Textile Reinforced Concrete (TRC)

Jute textiles with enhanced interfacial bonding as reinforcement for cementitious composites

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