Modelling Concrete Degradation by Coupled Non-linear Processes
Concrete in a transuranic (TRU) waste repository is considered a suitable material to ensure safety, provide structural integrity and retard radionuclide migration after the waste containers fail. Modelling of concrete degradation often focuses solely on solid-water chemical reactions and related ch...
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| Veröffentlicht in: | Journal of Advanced Concrete Technology 2021/10/29, Vol.19(10), pp.1075-1087 |
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| container_title | Journal of Advanced Concrete Technology |
| container_volume | 19 |
| creator | Oda, Chie Kawama, Daisuke Shimizu, Hiroyukiu Benbow, Steven J. Hirano, Fumio Takayama, Yusuke Takase, Hiroyasu Mihara, Morihiro Honda, Akira |
| description | Concrete in a transuranic (TRU) waste repository is considered a suitable material to ensure safety, provide structural integrity and retard radionuclide migration after the waste containers fail. Modelling of concrete degradation often focuses solely on solid-water chemical reactions and related changes in porosity, however, cracking and damage from steel corrosion will likely exert significant control over the mass-transport properties of concrete. In the current study, coupling between chemical, mass-transport and mechanical, so-called non-linear processes that control concrete degradation and crack development were investigated by coupled numerical models. Application of such coupled numerical models allows identification of the dominant non-linear processes that will control long-term concrete degradation and crack development in a TRU waste repository. |
| doi_str_mv | 10.3151/jact.19.1075 |
| format | Article |
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| subjects | Chemical reactions Concrete Concrete deterioration Cracking (fracturing) Degradation Mass transport Mathematical models Nonlinear control Numerical models Radioisotopes Repositories Structural integrity Transport properties Waste containers |
| title | Modelling Concrete Degradation by Coupled Non-linear Processes |
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