Tensile behaviour of FRCM composites for strengthening of masonry structures–an experimental investigation
Authors:
- Łukasz Hojdys,
- Piotr Krajewski
Abstract
This paper presents the results of direct tensile tests performed on six different FRCM (fabric reinforced cementitious matrix) strengthening systems used for masonry structures. The emphasis was placed on the determination of the mechanical parameters of each tested system and a comparison of their tensile behaviour in terms of first crack stress, ultimate stress, ultimate strain, cracking pattern, failure mode and idealised tensile stress-strain curve. In addition to the basic mechanical tensile parameters, accidental load eccentricities, matrix tensile strengths, and matrix modules of elasticity were estimated. The results of the tests showed that the tensile behaviour of FRCM composites strongly depends on the parameters of the constituent materials (matrix and fabric). In the tests, tensile failure of reinforcement and fibre slippage within the matrix were observed. The presented research showed that the accidental eccentricities did not substantially affect the obtained results and that the more slender the specimen used, the more consistent the obtained results. The analysis based on a rule of mixtures showed that the direct tensile to flexural tensile strength ratio of the matrixes used in the test was 0.2 to 0.4. Finally, the tensile stress–strain relationship for the tested FRCMs was idealised by a bi- or tri-linear curve.
- Record ID
- CUTd06e2923e31447e2b2c8f02725150296
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2021
- Vol
- 14
- No
- 13
- Pages
- [1-20]
- Article number
- 3626
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 18-20; Bibliografia (liczba pozycji) - 49; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 14, Iss. 13, Spec. Iss.
- Substantive notes
- Special Issue: Masonry Structures and Reinforced Concrete Structures
- Keywords in English
- fabric reinforced cementitious matrix, FRCM, textile reinforced mortar, TRM, strengthening system, masonry, tensile test, non-metallic fibres
- DOI
- DOI:10.3390/ma14133626 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/14/13/3626 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTd06e2923e31447e2b2c8f02725150296/
- URN
urn:pkr-prod:CUTd06e2923e31447e2b2c8f02725150296
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.