On Mechanical Degradation of Reinforced Concrete Affected by Alkali-Silica Reaction |
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Authors: | A. Winnicki S. Pietruszczak |
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Affiliation: | 1Assistant Professor, Cracow Univ. of Technology, 24 Warszawska St., Cracow 31-155, Poland. 2Professor, McMaster Univ., 1280 Main St. West, Hamilton, ON Canada L8S 4L7 (corresponding author). E-mail: pietrusz@mcmaster.ca
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Abstract: | In this paper a constitutive relation is developed for reinforced concrete subjected to a continuing alkali-silica reaction. The chemo-mechanical interaction is described within the framework of chemo-plasticity. The formulation invokes the assumption that the formation of expansive phases results in degradation of mechanical properties of the material. The approach employs a constitutive model for reinforced concrete, as recently developed by the writers. An extensive numerical analysis is conducted examining the effect of the reaction on mechanical characteristics in axial compression/tension for different reinforcement intensities. Some of the key results are compared with the available experimental data. |
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Keywords: | Concrete, reinforced Plasticity Degradation Mechanical properties |
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