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Experimental Study on the Adhesion of Basalt Textile Reinforced Mortars (TRM) to Clay Brick Masonry: The Influence of Textile Density

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Laboratory of Composite Materials for Construction (LMC2), University Claude Bernard Lyon 1, Site Bohr, 82 Boulevard Niels Bohr, Campus de la Doua, CEDEX, 69622 Villeurbanne, France
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Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
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Author to whom correspondence should be addressed.
Fibers 2019, 7(12), 103; https://doi.org/10.3390/fib7120103
Received: 16 August 2019 / Revised: 21 November 2019 / Accepted: 24 November 2019 / Published: 29 November 2019
Textile Reinforced Mortar (TRM) composite systems are gaining consensus within the scientific and technical communities as a viable and advantageous alternative to the most conventional Fibre-Reinforced Polymer (FRP) composites. Due to the good compatibility both in terms of stiffness and vapor permeability between the inorganic matrix and the substrate, the TRMs appear to be particularly well suited for strengthening masonry members and enhancing their capacity to withstand tensile and shear stresses, such as those induced by seismic shakings. This paper aims to investigate the mechanical response of a TRM system featuring an internal reinforcement made of basalt fiber textile. Therefore, the paper reports the results of an experimental campaign carried out by single-lap shear bond tests on masonry substrate reinforced by TRM strips. Three different kinds of TRM have been taken into account, each one characterized by a variable number of fabric plies. The results show that, in all cases, TRMs fail prematurely due to debonding between fabric and matrix. However, the aforementioned premature failure is the main concern emerging from these test results, and further work is requested in reformulating the matrix composition towards enhancing their tensile strength and, hence, restraining the occurrence of fabric-to-matrix debonding. View Full-Text
Keywords: basalt-TRM; basalt-FRCM; shear bond test; tensile test; natural composites; basalt fibers basalt-TRM; basalt-FRCM; shear bond test; tensile test; natural composites; basalt fibers
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Ferrara, G.; Caggegi, C.; Gabor, A.; Martinelli, E. Experimental Study on the Adhesion of Basalt Textile Reinforced Mortars (TRM) to Clay Brick Masonry: The Influence of Textile Density. Fibers 2019, 7, 103.

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