Round Robin Test for composite-to-brick shear bond characterization

Maria Rosa Valluzzi, Daniel Oliveira, Angelo Caratelli, Giulio Castori, Marco Corradi, Gianmarco Felice, Enrico Garbin, David Garcia, Leire Garmendia, Ernesto Grande, Ugo Ianniruberto, Arkadiusz Kwiecień, Marianovella Leone, Gian Piero Lignola, Paulo B. Lourenço, Marialaura Malena, Francesco Micelli, Matteo Panizza, Catherine Papanicolaou, Andrea ProtaElio Sacco, Thanasis Triantafillou, Alberto Viskovic, Bogusław Zając, Gina Zuccarino

Research output: Contribution to journalArticlepeer-review

162 Citations (Scopus)

Abstract

The paper presents the experience of a working group within the RILEM Technical Committee 223-MSC ‘Masonry Strengthening with Composite materials’, aimed at developing a standardized, reliable procedure for characterizing the bonding mechanism of masonry elements strengthened with composite materials under shear actions. Twelve laboratories from European universities and research centers were involved. Two different set-ups were compared, for single-lap and double-lap shear tests (the latter in two versions). Four kinds of fiber fabrics, i.e., glass, carbon, basalt and steel, were applied with epoxy resins (wet lay-up system) to clay brick units, for a total of 280 monotonic tests. The results provided information regarding the response of externally bonded-to-brick composites in terms of observed failure mechanisms, load capacity, effective transfer length, and bond shear stress–slip behavior. The test results of the 12 laboratories constitute a set of statistically representative data which may conveniently be used for setting appropriate design provisions and guidelines.
Original languageEnglish
Pages (from-to)1761-1791
JournalMaterials and Structures
Volume45
Issue number12
DOIs
Publication statusPublished - Dec 2012

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