Inorganic composites for enhancing the in-plane shear capacity of masonry walls with irregular texture were investigated on twenty-one panels under diagonal compression tests. Three specimens were used as control and twelve specimens were strengthened with two Fibre Reinforced Mortars (FRM-A and FRM-B), characterized by a different content of fibres embedded in the lime-based matrix. The remaining six specimens were strengthened with Fabric Reinforced Cementitious Mortars (FRCM), consisting in a GFRP grid embedded in a fibre reinforced matrix (the same used for FRM-A). The influence of single-side and double-side strengthening configurations on the capacity of strengthened panels was also investigated, to point out the reduction in strengthening effectiveness in case of single-sided applications. The results showed that all the inorganic composites adopted for the strengthening techniques provided a substantial increase of shear capacity. The grid in FRCM strengthened panels played an important role in both strength and deformation capacity at peak. The different fibres content (lower than 50% in weight) in FRM systems slightly affected the overall performance of panels. Finally, analytical predictions of experimental results were reported and discussed and a preliminary analytical model for estimating the FRM shear contribution was proposed, obtaining a good agreement with test results.

Diagonal compression testing of masonry panels with irregular texture strengthened with inorganic composites / Del Zoppo, M.; Di Ludovico, M.; Balsamo, A.; Prota, A.. - In: MATERIALS AND STRUCTURES. - ISSN 1359-5997. - 53:4(2020). [10.1617/s11527-020-01539-z]

Diagonal compression testing of masonry panels with irregular texture strengthened with inorganic composites

Del Zoppo M.;Di Ludovico M.;Balsamo A.;Prota A.
2020

Abstract

Inorganic composites for enhancing the in-plane shear capacity of masonry walls with irregular texture were investigated on twenty-one panels under diagonal compression tests. Three specimens were used as control and twelve specimens were strengthened with two Fibre Reinforced Mortars (FRM-A and FRM-B), characterized by a different content of fibres embedded in the lime-based matrix. The remaining six specimens were strengthened with Fabric Reinforced Cementitious Mortars (FRCM), consisting in a GFRP grid embedded in a fibre reinforced matrix (the same used for FRM-A). The influence of single-side and double-side strengthening configurations on the capacity of strengthened panels was also investigated, to point out the reduction in strengthening effectiveness in case of single-sided applications. The results showed that all the inorganic composites adopted for the strengthening techniques provided a substantial increase of shear capacity. The grid in FRCM strengthened panels played an important role in both strength and deformation capacity at peak. The different fibres content (lower than 50% in weight) in FRM systems slightly affected the overall performance of panels. Finally, analytical predictions of experimental results were reported and discussed and a preliminary analytical model for estimating the FRM shear contribution was proposed, obtaining a good agreement with test results.
2020
Diagonal compression testing of masonry panels with irregular texture strengthened with inorganic composites / Del Zoppo, M.; Di Ludovico, M.; Balsamo, A.; Prota, A.. - In: MATERIALS AND STRUCTURES. - ISSN 1359-5997. - 53:4(2020). [10.1617/s11527-020-01539-z]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/831977
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