Tensile behavior of textile reinforced concrete subjected to freezing–thawing cycles in un-cracked and cracked regimes |
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| Affiliation: | 1. Department of Civil Engineering, University of Calabria, Arcavacata di Rende, CS, Italy;2. Department of Environmental and Chemical Engineering, University of Calabria, Arcavacata di Rende, CS, Italy;1. School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287-5306, United States;2. Material Engineering Department, Ben Gurion University, Israel;3. Structural Engineering Department, Ben Gurion University, Israel;1. Department of Civil Engineering, COPPE, Universidade Federal do Rio de Janeiro, P.O. Box 68506, CEP 21941-972 Rio de Janeiro, RJ, Brazil;2. Institute of Construction Materials, TU Dresden, 01062 Dresden, Germany;1. University of Patras, Department of Civil Engineering, GR-26500 Patras, Greece;2. Politecnico di Milano, Department of Architecture, Built Environment, and Construction Engineering, IT-20133 Milan, Italy;1. Department of Civil Engineering, COPPE, Universidade Federal do Rio de Janeiro, P.O. Box 68506, CEP 21941-972, Rio de Janeiro, RJ, Brazil;2. School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA;3. Department of Civil Engineering, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marques de São Vicente 225, 22451-900, Rio de Janeiro, RJ, Brazil |
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| Abstract: | This work investigates the tensile behavior of a textile reinforced concrete (TRC) reinforced with an alkali resistant glass fabric when exposed to freezing–thawing cycles. This paper presents tensile tests carried out on prismatic specimens after their exposure to a different number of freezing–thawing cycles (up to 500). Both un-cracked and pre-cracked specimens were treated and then tested. In all the tests the load direction was aligned with the fabric warp. The influence of this severe environmental condition on ductility and strength of the composite is investigated. The behavior of the composite material seems to be governed, on one side, by the damage due to the thermal cycles and, on the other side, by the matrix self-healing and late hydration due to the permanence in water of the specimens. The latter phenomenon is enhanced by the presence of cracks in pre-cracked specimens, which facilitates the penetration of water. |
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