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Macroscopic chemo-mechanical modeling of alkali-silica reaction of concrete under stresses
HighlightsMacroscopic chemo-mechanical modeling of alkali-silica reaction of concrete under stresses was proposed.Creep as well as chemical strain by alkali-silica reaction was taken into account as a prescribed strain.Damage model was also implemented to take into account the degradation of Young’s modulus.The simulation turned out well consistent with the experimental results.
AbstractCreep plays an important role for deformation of ASR-affected structures which are subjected to various stresses or restraint. It still remains controversial, however, how the combination of creep and stress states or restraints affects expansion. In this study, creep was taken into account as a “prescribed” strain computed at previous timestep and the model was implemented in a chemo-mechanical calculation. The calculation was validated with previous experiments in which the expansive behavior of concrete subjected to stresses had been monitored under different applied stresses and restraint conditions. The results showed that the calculations gave consistent results with the experiments, supporting the validity of the model and the importance of taking creep into account.
Macroscopic chemo-mechanical modeling of alkali-silica reaction of concrete under stresses
HighlightsMacroscopic chemo-mechanical modeling of alkali-silica reaction of concrete under stresses was proposed.Creep as well as chemical strain by alkali-silica reaction was taken into account as a prescribed strain.Damage model was also implemented to take into account the degradation of Young’s modulus.The simulation turned out well consistent with the experimental results.
AbstractCreep plays an important role for deformation of ASR-affected structures which are subjected to various stresses or restraint. It still remains controversial, however, how the combination of creep and stress states or restraints affects expansion. In this study, creep was taken into account as a “prescribed” strain computed at previous timestep and the model was implemented in a chemo-mechanical calculation. The calculation was validated with previous experiments in which the expansive behavior of concrete subjected to stresses had been monitored under different applied stresses and restraint conditions. The results showed that the calculations gave consistent results with the experiments, supporting the validity of the model and the importance of taking creep into account.
Macroscopic chemo-mechanical modeling of alkali-silica reaction of concrete under stresses
Kawabata, Yuichiro (author) / Seignol, Jean-François (author) / Martin, Renaud-Pierre (author) / Toutlemonde, François (author)
Construction and Building Materials ; 137 ; 234-245
2017-01-25
12 pages
Article (Journal)
Electronic Resource
English
Model , Alkali-silica reaction , Creep , Damage , Anisotropy
Macroscopic chemo-mechanical modeling of alkali-silica reaction of concrete under stresses
| British Library Online Contents | 2017
Macroscopic chemo-mechanical modeling of alkali-silica reaction of concrete under stresses
| British Library Online Contents | 2017
Macroscopic chemo-mechanical modeling of alkali-silica reaction of concrete under stresses
| Online Contents | 2017
Chemo-Mechanical Micromodel for Alkali-Silica Reaction
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