In this study, dry and epoxy-coated glass-fiber FRCM systems coupled with cement, lime, or gypsum matrices are tested. To characterize matrix-textile bond behavior pull-out tests (TPT) with a pull-pull setup, and direct tensile tests (DTT) were implemented. For DTT, coating produces higher load values at the end of the linear-elastic phase and a further phase of a considerable increase in the bearing capacity with subsequent mortar fractures. Interface delamination has also been recorded. Cohesive Material Law (CML) back calibration provided a trilinear diagram with a softening branch for the dry textile and an elastic brittle diagram for the coated textile.
EFFECT OF COATING ON GLASS-FIBRE FRCM SYSTEMS UNDER DIRECT TENSILE AND PULL-OUT TESTS / Grazzini R.; Misseri G.; Rovero L.. - ELETTRONICO. - (2023), pp. 1-12. (Intervento presentato al convegno 11th International Conference on Fiber-Reinforced Polymer ,FRP Composites in Civil Engineering, CICE 2023 tenutosi a Rio de Janeiro nel 2023).
EFFECT OF COATING ON GLASS-FIBRE FRCM SYSTEMS UNDER DIRECT TENSILE AND PULL-OUT TESTS
Grazzini R.;Misseri G.;Rovero L.
2023
Abstract
In this study, dry and epoxy-coated glass-fiber FRCM systems coupled with cement, lime, or gypsum matrices are tested. To characterize matrix-textile bond behavior pull-out tests (TPT) with a pull-pull setup, and direct tensile tests (DTT) were implemented. For DTT, coating produces higher load values at the end of the linear-elastic phase and a further phase of a considerable increase in the bearing capacity with subsequent mortar fractures. Interface delamination has also been recorded. Cohesive Material Law (CML) back calibration provided a trilinear diagram with a softening branch for the dry textile and an elastic brittle diagram for the coated textile.
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