Influence of different set-up parameters on the bond behavior of FRCM composites

Bellini, Alessandro, Aiello, Maria Antonietta, Bencardino, Francesco, de Carvalho Bello, Claudia Brito, Castori, Giulio, Cecchi, Antonella, Ceroni, Francesca, Corradi, Marco, D'Antino, Tommaso, De Santis, Stefano, Fagone, Mario, de Felice, Gianmarco, Leone, Marianovella, Lignola, Gian Piero, Napoli, Annalisa, Nisticò, Mattia, Poggi, Carlo, Prota, Andrea, Ranocchiai, Giovanna, Realfonzo, Roberto, Sacco, Elio and Mazzotti, Claudio (2021) Influence of different set-up parameters on the bond behavior of FRCM composites. Construction and Building Materials, 308. p. 124964. ISSN 0950-0618

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Fabric Reinforced Cementitious Matrix (FRCM) composites represent an innovative and effective retrofitting solution for masonry structures. The use of FRCMs as an external retrofitting technique requires an insight knowledge of their mechanical behavior, failure modes and masonry-to-FRCM bond properties. A Round Robin Test (RRT) programme was launched by twelve Italian Universities, aimed at evaluating the effect of the shear test set-up parameters and at assessing the test variability. The experimental tests were performed on systems made of glass and steel fibers/cords applied onto masonry substrates. The results were carefully analyzed discussing failure modes, bond capacity, and slip statistical dispersion. Differences in the set-up, including the clamping method, textile impregnation, and instrumentation used for measuring the slip during the tests, were discussed in detail providing useful considerations and suggestions for reducing experimental scattering and obtaining reliable results.

Item Type: Article
Additional Information: Funding information: The financial support of the Italian Department of Civil Protection (ReLUIS 2019-21 Grant – Innovative Materials) is gratefully acknowledged. The authors would like to thank Sika Italia S.p.A., Fibre Net S.p.A and Kerakoll S.p.A. for providing materials and for the cooperation during samples preparation.
Uncontrolled Keywords: FRCM, Round Robin, Bond test, Set-up, Experimental scattering
Subjects: F200 Materials Science
H200 Civil Engineering
H300 Mechanical Engineering
K200 Building
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Elena Carlaw
Date Deposited: 08 Nov 2021 09:58
Last Modified: 21 Oct 2022 08:01

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