PSI - Issue 64

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ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 64 (2024) 1476–1483

SMAR 2024 – 7th International Conference on Smart Monitoring, Assessement and Rehabilitation of Civil Structures Bond and tensile behaviour of textile reinforced mortars with traditional and alternative matrices SMAR 2024 – 7th International Conference on Smart Monitoring, Assessement and Rehabilitation of Civil Structures Bond and tensile behaviour of textile reinforced mortars with traditional and alternative matrices

Kevin Isaac Escobar a *, Juan Murcia-Delso a , Eva Oller a a Universitat Politècnica de Catalunya, C. Jordi Girona, 31, Barcelona 08034, Spain Kevin Isaac Escobar a *, Juan Murcia-Delso a , Eva Oller a a Universitat Politècnica de Catalunya, C. Jordi Girona, 31, Barcelona 08034, Spain

Abstract Reinforced and prestressed concrete structures frequently need to be repaired and strengthened during their service life due to corrosion deterioration and other pathologies. Composite materials, such as textile reinforced mortar (TRM), have emerged as a promising solution for restoring or improving the load bearing capacity of structural concrete. Previous studies have demonstrated that the effectiveness of this strengthening technique relies mostly on the bond between the textile and the matrix as well as on the bonded length to the substrate. The research presented in this paper aims to evaluate the efficiency of bond characteristics as well as the mechanical properties of various TRM systems. Carbon and basalt textiles were investigated along with conventional cement mortar and alternative mortars with short glass or synthetic fibres. To examine the bond behaviour of each system, a single lap shear test configuration was used. Tensile testing was carried out using a clevis grip or a clamping configuration. The tension and bond properties obtained from the tests are analysed and compared, and recommendations are presented regarding the bond and tensile test setups. © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers Keywords:Textile reinforced mortar; bond behaviour; single lap test; mechanical properties. Abstract Reinforced and prestressed concrete structures frequently need to be repaired and strengthened during their service life due to corrosion deterioration and other pathologies. Composite materials, such as textile reinforced mortar (TRM), have emerged as a promising solution for restoring or improving the load bearing capacity of structural concrete. Previous studies have demonstrated that the effectiveness of this strengthening technique relies mostly on the bond between the textile and the matrix as well as on the bonded length to the substrate. The research presented in this paper aims to evaluate the efficiency of bond characteristics as well as the mechanical properties of various TRM systems. Carbon and basalt textiles were investigated along with conventional cement mortar and alternative mortars with short glass or synthetic fibres. To examine the bond behaviour of each system, a single lap shear test configuration was used. Tensile testing was carried out using a clevis grip or a clamping configuration. The tension and bond properties obtained from the tests are analysed and compared, and recommendations are presented regarding the bond and tensile test setups. © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers Keywords:Textile reinforced mortar; bond behaviour; single lap test; mechanical properties. © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers

* Corresponding author. Tel.: +34 93 401 57 62. E-mail address: kevin.isaac.escobar@upc.edu * Corresponding author. Tel.: +34 93 401 57 62. E-mail address: kevin.isaac.escobar@upc.edu

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers 2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers

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