Article Dans Une Revue Construction and Building Materials Année : 2024

Tensile and cracking behaviour of crimped textile reinforced mortar (TRM) based on digital image correlation

Résumé

The tensile behaviour of textile reinforced mortar (TRM) is sensitive to the adopted matrix, textile, and their interfacial bonding. The matrix-textile bond varies with the nature of the adopted textile. In this study, the influence of textile crimp and orientation on the tensile and cracking responses of cement matrix-based TRM was studied for coated and noncoated (uncoated) carbon textiles using digital image correlation. This study also examined the behaviour of a hybrid TRM incorporating layers of coated and noncoated carbon. The results showed that the presence of load-aligned crimped yarns influenced the deformation, damage mode, cracking evolution, and crack opening of the TRMs. Finally, based on the observed deformations of the load-oriented crimped-yarn TRMs, a simple modification term for the second phase strains of the ACK model was proposed based on the textile geometry. The modified term produced strain values within 9.7-15% of the experimental strain.

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hal-04845309 , version 1 (18-12-2024)

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Khan Junaid, Zyed Mesticou, Algourdin Nonna, Gaochuang Cai, Amir Si Larbi. Tensile and cracking behaviour of crimped textile reinforced mortar (TRM) based on digital image correlation. Construction and Building Materials, 2024, 417, pp.135321. ⟨10.1016/j.conbuildmat.2024.135321⟩. ⟨hal-04845309⟩
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