A phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concrete
We present a new mechanistic framework for corrosion-induced cracking in reinforced concrete that resolves the underlying chemo-mechanical processes. The framework combines, for the first time, (i) a model for reactive transport and precipitation of dissolved Fe<sup>2+</sup> and Fe<su...
| Main Authors: | , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
Elsevier
2023
|
| _version_ | 1826312508058632192 |
|---|---|
| author | Korec, E Jirásek, M Wong, HS Martínez-Pañeda, E |
| author_facet | Korec, E Jirásek, M Wong, HS Martínez-Pañeda, E |
| author_sort | Korec, E |
| collection | OXFORD |
| description | We present a new mechanistic framework for corrosion-induced cracking in reinforced concrete that resolves the underlying chemo-mechanical processes. The framework combines, for the first time, (i) a model for reactive transport and precipitation of dissolved Fe<sup>2+</sup> and Fe<sup>3+</sup> ions in the concrete pore space, (ii) a precipitation eigenstrain model for the pressure caused by the accumulation of precipitates (rusts) under pore confinement conditions, (iii) a phase-field model calibrated for the quasi-brittle fracture behaviour of concrete, and (iv) a damage-dependent diffusivity tensor. Finite element model predictions show good agreement with experimental data from impressed current tests under natural-like corrosion current densities. |
| first_indexed | 2024-03-07T08:29:59Z |
| format | Journal article |
| id | oxford-uuid:f5bb0a67-49f9-4623-a89f-a2be0f9ba743 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T08:29:59Z |
| publishDate | 2023 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:f5bb0a67-49f9-4623-a89f-a2be0f9ba7432024-02-29T16:17:18ZA phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concreteJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f5bb0a67-49f9-4623-a89f-a2be0f9ba743EnglishSymplectic ElementsElsevier2023Korec, EJirásek, MWong, HSMartínez-Pañeda, EWe present a new mechanistic framework for corrosion-induced cracking in reinforced concrete that resolves the underlying chemo-mechanical processes. The framework combines, for the first time, (i) a model for reactive transport and precipitation of dissolved Fe<sup>2+</sup> and Fe<sup>3+</sup> ions in the concrete pore space, (ii) a precipitation eigenstrain model for the pressure caused by the accumulation of precipitates (rusts) under pore confinement conditions, (iii) a phase-field model calibrated for the quasi-brittle fracture behaviour of concrete, and (iv) a damage-dependent diffusivity tensor. Finite element model predictions show good agreement with experimental data from impressed current tests under natural-like corrosion current densities. |
| spellingShingle | Korec, E Jirásek, M Wong, HS Martínez-Pañeda, E A phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concrete |
| title | A phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concrete |
| title_full | A phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concrete |
| title_fullStr | A phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concrete |
| title_full_unstemmed | A phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concrete |
| title_short | A phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concrete |
| title_sort | phase field chemo mechanical model for corrosion induced cracking in reinforced concrete |
| work_keys_str_mv | AT korece aphasefieldchemomechanicalmodelforcorrosioninducedcrackinginreinforcedconcrete AT jirasekm aphasefieldchemomechanicalmodelforcorrosioninducedcrackinginreinforcedconcrete AT wonghs aphasefieldchemomechanicalmodelforcorrosioninducedcrackinginreinforcedconcrete AT martinezpanedae aphasefieldchemomechanicalmodelforcorrosioninducedcrackinginreinforcedconcrete AT korece phasefieldchemomechanicalmodelforcorrosioninducedcrackinginreinforcedconcrete AT jirasekm phasefieldchemomechanicalmodelforcorrosioninducedcrackinginreinforcedconcrete AT wonghs phasefieldchemomechanicalmodelforcorrosioninducedcrackinginreinforcedconcrete AT martinezpanedae phasefieldchemomechanicalmodelforcorrosioninducedcrackinginreinforcedconcrete |