Experimental study and benchmarking of 3D textile reinforced cement composites

Kadi, Michael El; Tysmans, Tine; Verbruggen, Svetlana; Vervloet, Jolien; Munck, Matthias De; Wastiels, Jan; Hemelrijck, Danny Van

doi:10.1016/j.cemconcomp.2019.103352

Cited by 26 publications

(12 citation statements)

References 13 publications

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“…Figure 11 compares the averaged curves of the knitted 3D with the equivalent 2D layup. The global macroscopic behavior of the equivalent 2D TRC layup in tension was similar to the knitted 3D TRC layup, as concluded in [21]. At the level of the post-cracking stiffness, no influence was observed from the layups containing transversal connections, as can be seen in Table 4.…”

Section: Knitted 3d Trcsupporting

confidence: 70%

“…Previous studies have reported that the presence of the transversal connections leads to a superior flexural post-cracking stiffness of the TRC, without increasing the effective in-plane fiber volume fraction [20][21][22]. Amzaleg et al [20] studied the influence of the properties, content and impregnation of the transversal connections on the mechanical properties of the TRC.…”

Section: Introductionmentioning

confidence: 99%

“…They concluded that the transversal connections have a beneficial influence on the flexural properties of the TRC due to mechanical anchoring. El Kadi et al compared the mechanical response of 3D TRCs with equivalent 2D TRCs, for four different layups in tension and bending, reporting a 25% post-cracking flexural stiffness increase of the 3D layups compared to their respective 2D alternatives [21]. Finally, Peled et al [22] investigated the influence of loading the composite along the weft and the warp direction of the textile, concluding that the weft direction yielded a superior post-cracking stiffness and strength.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Loading Orientation and Knitted Versus Woven Transversal Connections in 3D Textile Reinforced Cement (TRC) Composites

et al. 2020

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As previous research has shown, the use of 3D textiles does not only facilitate the manufacturing process of Textile Reinforced Cement (TRC) composites but also influences the mechanical properties of the TRC. A fundamental understanding of the contribution of the transversal connections in the 3D textile to the loadbearing behavior of 3D TRCs is, however, still lacking in the literature. Therefore, this research experimentally investigates two different parameters of 3D TRCs; firstly, the 3D textile typology, namely knitted versus woven transversal connections, is investigated. Secondly, the influence of the stress direction with respect to the orientation of these connections (parallel or perpendicular) is studied. A clear influence of the orientation is witnessed for the woven 3D TRC system while no influence is observed for the knitted 3D TRC. Both woven and knitted 3D TRC systems show an increased post-cracking bending stiffness compared to an equivalent 2D system (with the same textiles but without transversal connections), yet the woven 3D TRC clearly outperforms the knitted 3D TRC.

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Section: Knitted 3d Trcsupporting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of Loading Orientation and Knitted Versus Woven Transversal Connections in 3D Textile Reinforced Cement (TRC) Composites

et al. 2020

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“…However, they are still used for repair and external retrofitting, especially for masonry walls. Regarding the geometry, one can distinguish the following types: Planar 2D textiles (biaxial or multiaxial), preformed 3D elements made from 2D textiles, and full 3D textiles (see e.g., [59]). Due to the variety of available products and combinations, a detailed characterization of the material properties of the reinforcement is indispensable for an experimental campaign on textile-reinforced concrete.…”

Section: Reinforcementmentioning

confidence: 99%

“…Conventional spacers made from fiber-reinforced mortar or plastic could function as a suitable alternative but were avoided here to minimize the risk of floating up of the reinforcement and to eliminate a possible influence on the cracking process. preformed 3D elements made from 2D textiles, and full 3D textiles (see e.g., [59]). Due to the variety of available products and combinations, a detailed characterization of the material properties of the reinforcement is indispensable for an experimental campaign on textile-reinforced concrete.…”

Section: Reinforcementmentioning

confidence: 99%

Shear Capacity of Textile-Reinforced Concrete Slabs without Shear Reinforcement

et al. 2019

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A reliable and economic utilization of textile-reinforced concrete in construction requires appropriate design concepts. Unlike designs for bending, the development of models for shear is still the subject of current research. Especially for thin slabs, systematic experimental investigations are lacking. In this paper, the results of an experimental campaign on 27 carbon-textile reinforced slab segments tested in three-point bending are presented. The shear-span to depth ratio and member size were key variation parameters in this study. Increasing the structural depth of members led to a reduction in relative shear strength, while variation of shear slenderness controlled the efficiency of direct stress fields between load introduction and support. Interestingly, direct load transfer was activated up to a shear slenderness ratio of 4, which is significantly higher than in reinforced concrete (a/d < 2.5–3) and may result from the bond characteristics of the textile reinforcement. The experimental shear strengths were compared to predictions from existing models for shear of fiber-reinforced polymer (FRP)-reinforced concrete. The study shows that these FRP calculation models also predict the ultimate shear force for textile-reinforced concrete (TRC) tests presented in this paper with sufficient accuracy. Existing approaches for the size effect seem transferable as well. In order to validate the models for general use in TRC shear design, a compilation and comparison with larger experimental databases is required in future works.

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Mix Optimisation and Bending Behaviour of Cement Composites Reinforced with 3D Textiles and Microfibres

Kadi

Tysmans

et al. 2023

RILEM Bookseries

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Experimental study and benchmarking of 3D textile reinforced cement composites

Cited by 26 publications

References 13 publications

Influence of Loading Orientation and Knitted Versus Woven Transversal Connections in 3D Textile Reinforced Cement (TRC) Composites

Influence of Loading Orientation and Knitted Versus Woven Transversal Connections in 3D Textile Reinforced Cement (TRC) Composites

Shear Capacity of Textile-Reinforced Concrete Slabs without Shear Reinforcement

Mix Optimisation and Bending Behaviour of Cement Composites Reinforced with 3D Textiles and Microfibres

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