Bond Characteristics of Carbon, Alkali Resistant Glass, and Aramid Textiles in Mortar

Xu, Sheng; Krüger, Markus; Reinhardt, Hans W.; Ožbolt, Joško

doi:10.1061/(asce)0899-1561(2004)16:4(356)

Cited by 131 publications

(48 citation statements)

References 2 publications

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“…is enhancement of filament yarns found out by Xu et al [57] was limited to the warp threads (longitudinal fibres of the textile fabric). e author's investigations showed, however, also an improvement to the bond due to coating in the weft thread direction (cross fibres of the textile fabric).…”

Section: Test Results For the Development Lengthmentioning

confidence: 82%

“…Xu et al [57] stated that coatings applied to previously stitched textile fibres create a ribbed surface that enhances pullout resistance.…”

Section: Test Results For the Development Lengthmentioning

confidence: 99%

“…e authors state that the pullout test setup presented in their work is suitable to obtain and characterize local bond behaviour for different TRC materials, particularly in the case of short embedment lengths. Also, Peled et al [56], Krüger [55], and Xu et al [57] showed an influence of several types of textile mesh on the bond behaviour of TRC. Lorenz [58] and Williams Portal et al [20] emphasized the interdependency between textile fabrication and bond properties.…”

Section: Literature Reviewmentioning

confidence: 99%

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Efficient Adaptive Test Method for Textile Development Length in TRC

Ortlepp

2018

Advances in Civil Engineering

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Natural resources can be conserved if we carefully maintain the building stock and indeed extend the useful economic life of buildings. One way to achieve this is to enhance load-bearing structures by repair, restoration, or strengthening. Such upgrading often involves applying a strengthening to existing concrete elements. Over the past decade, textile-reinforced concrete (TRC), encompassing a combination of fine-grained concrete and noncorrosive multiaxial textile fabrics, has emerged as a promising novel alternative for strengthening of conventional steel-reinforced concrete (RC) structures, offering enhanced load-bearing capacity with minimal weight and stiffness change. Although TRC has been extensively researched during the last two decades, the formalization of experimental methods and design standards is still in progress. Attempts to design for good load transfer are often hindered by lack of knowledge regarding bond behaviour. For instance, there are neither standard recommendations nor proofs regarding the required development length of textile fibres in TRC for practical applications up to now. e aim of this work was to provide a test specification, which gives a direct result for the development length (required for the anchorage of a reinforcement, also referred to as "anchorage length") of textile reinforcements in fine-grained concrete-quickly and easily. e aim of this paper was to present the test specification developed in a way that it is useful for the future work of other researchers as well as for construction engineers. Some selected experimental investigations with different textile reinforcements and different bonding properties were performed with the aim of showing the applicability of the proposed adaptive test specification. e results of these tests indicated that conventional AR glass and carbon fabrics without coating required large anchoring lengths. e tests further showed that an additional application of different kinds of coating to textile fabrics greatly increased the reinforcement's resistance to pullout. is is of special interest for carbon fibres, which have a substantially higher strength than AR glass fibres and different bond behaviour; that is, carbon fibres have, by nature, larger development lengths.

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Section: Test Results For the Development Lengthmentioning

confidence: 82%

“…Xu et al [57] stated that coatings applied to previously stitched textile fibres create a ribbed surface that enhances pullout resistance.…”

Section: Test Results For the Development Lengthmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

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Efficient Adaptive Test Method for Textile Development Length in TRC

Ortlepp

2018

Advances in Civil Engineering

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“…The application of coatings to previously stitched textile fibers creates a ribbed surface that enhances pull-out resistance [12]. This enhancement of filament yarns, however, is limited to the warp threads.…”

Section: Fig 4 Evaluation Of the Filament Yarn Pull-out Lengthmentioning

confidence: 99%

Anchorage Length for Textile Reinforced Concrete

Ortlepp¹

2011

IJEP

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Abstract-The anchorage length needed for textile fabrics as reinforcement within a fine-grained concrete matrix was determined based upon specific filament yarn pull-out tests. The purpose of this research was to eliminate the possibility of failure due to fabric pull-out from the matrix in practical applications. Therefore, a new test set-up was developed, which offers the possibility for a quick and direct determination of the anchorage length. Several textile fabrics made of alkali resistant glass (AR-glass) fibres, as well as carbon fibres were therewith tested. Findings indicated that conventional AR-glass fabrics required large anchoring lengths, and, it's another fact to consider, that carbon fibres have a substantially higher strength than AR-glass fibres and different bond behaviour. The research further showed that an additional application of a polymer suspension coating to textile fabrics greatly increased the reinforcement's resistance to pull-out.

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“…The crack behavior and out-of-plane load capacity of TRC members depend mainly on the adhesion between the fiber and the concrete (Xu et al, 2004). Studies aimed at improving the adhesion between the fiber and the concrete (Xun et al, 2005;Dilthey et al, 2006;Li et al, 2008;Yin and Xu, 2010) indicate that adhesion could be effectively improved by impregnating the woven fiber net with epoxy resin.…”

Section: Introductionmentioning

confidence: 99%

High temperature mechanical performance and micro interfacial adhesive failure of textile reinforced concrete thin-plate

Shen

Wang

et al. 2014

J. Zheijang Univ.-Sci.

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Abstract:The mechanical performance of textile reinforced concrete (TRC) thin-plate under high temperature conditions was investigated using three-point bending tests. The influence of polypropylene (PP) fiber addition on the out-of-plane load capacity of TRC thin-plate after high temperature treatment was also studied. The results showed that the thermostability of TRC thin-plate with textile impregnated with epoxy resin was not good, but that the out-of-plane load capacity of TRC thin-plate after high temperature treatment could be improved by increasing the plate thickness or the textile distribution rate. Under normal temperature and a high temperature of 120°C, the out-of-plane load capacity of specimens could be increased and cracks better distributed by mixing the TRC with PP fiber. However, the out-of-plane load capacity of TRC thin-plate under a continuous high temperature of 200°C was not much affected by the addition of PP fiber. The result of a microcosmic scanning electron microscope (SEM) test showed that the main reason for the interfacial adhesive failure between the textile and the original concrete substrate was the degradation of the epoxy resin under high temperature.

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Bond Characteristics of Carbon, Alkali Resistant Glass, and Aramid Textiles in Mortar

Cited by 131 publications

References 2 publications

Efficient Adaptive Test Method for Textile Development Length in TRC

Efficient Adaptive Test Method for Textile Development Length in TRC

Anchorage Length for Textile Reinforced Concrete

High temperature mechanical performance and micro interfacial adhesive failure of textile reinforced concrete thin-plate

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