Stone masonry confinement with FRP and FRCM composites

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Title: Stone masonry confinement with FRP and FRCM composites
Authors: Estevan García, Luis | Baeza, F. Javier | Bru, David | Ivorra, Salvador
Research Group/s: Grupo de Ensayo, Simulación y Modelización de Estructuras (GRESMES) | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Masonry | Stone | Confinement | FRP | FRCM | TRM
Knowledge Area: Mecánica de Medios Continuos y Teoría de Estructuras
Issue Date: 20-Mar-2020
Publisher: Elsevier
Citation: Construction and Building Materials. 2020, 237: 117612. doi:10.1016/j.conbuildmat.2019.117612
Abstract: In the last decades, there are many reports on the use of composites as reinforcement of structural elements under compression, especially regarding the confinement of concrete structures, but works on stone or masonry columns are limited. Initially, FRP jackets were used because their high structural performance. However, they present some drawbacks like aesthetics or water impermeability, which can affect their applicability in historical constructions made in stone. Recently, FRCM appeared as an alternative with better compatibility with masonry structures. In the present study, a comparison between different composite materials to confine masonry specimens was made. FRPs with carbon or glass fibers and epoxy matrix, and FRCM with basalt or glass fiber mesh in a cementitious matrix were used to confine masonry, made in calcarenite cylindrical pieces and lime mortar. Strength and ductility gains under compressive loads were measured, and compared to the recommendations of different guidelines. Unidirectional FRPs were the optimal solution from a strengthening point of view. On the other hand, FRCM confinement offered more ductility than unreinforced masonry, but showed a softening behavior. Finally, regarding the studied design codes, the specific parameters included for masonry structures seemed enough to obtain accurate predictions of the compressive strength increase due to the confinement with the tested composites.
Sponsor: This research and the APC were funded by Spanish Ministry of Economy and Competitiveness, grant number BIA2015-69952-R and Spanish Ministry of Science, Innovation and Universities, grant number RTI2018-101148-B-I00.
ISSN: 0950-0618 (Print) | 1879-0526 (Online)
DOI: 10.1016/j.conbuildmat.2019.117612
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 Elsevier Ltd.
Peer Review: si
Publisher version:
Appears in Collections:INV - GRESMES - Artículos de Revistas
INV - DMCIA - Artículos de Revistas

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