| Physique et mécanique des milieux poreux |  |
| Physique et mécanique des milieux poreux | |
| HAL : hal-00551352, version 1 |
| DOI : 10.1002/nag.947 |
| Fiche détaillée |  Récupérer au format |
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| International Journal for Numerical and Analytical Methods in Geomechanics 35, 10 (2011) 1141-1159 |
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| Experimental and numerical behaviour of reinforced mortar plates subjected to accelerated corrosion |
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| Quang Thanh Nguyen 1Sabine Caré 2 |
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| (2011) |
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| Most reinforced concrete structures are damaged due to corrosion of reinforcements in concrete. In normal conditions the pH near the reinforcements is around 12–13 which means that steel is in a passive state. But aggressive species, such as chloride ions or carbon dioxide, may penetrate into concrete and promote active corrosion. As a consequence (hydro)oxides are produced leading to degradation of concrete structures. For instance cracking of the concrete is generated due to the pressure induced by rust. In this paper, we study the inception and the propagation of cracking on reinforced mortar plates with rebars located either in the middle or at the corner. Additional experiments have been performed on cylindrical specimens to determine the local effect of rust pressure at the interface rust/mortar. The specimens have been subjected to imposed current density in order to enhance the corrosion and digital image intercorrelation has been used to determine displacement fields. The experiments have been compared to numerical modelling. |
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| 1 : | Laboratoire de Mécanique et Technologie (LMT) |
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CNRS : UMR8535 – Université Pierre et Marie Curie [UPMC] - Paris VI – École normale supérieure de Cachan - ENS Cachan |
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| 2 : | Laboratoire Navier |
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Ecole des Ponts ParisTech – CNRS : UMR8205 – IFSTTAR |
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| 3 : | Commissariat a l'Energie Atomique (CEA) |
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CEA |
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| Domaine | : | Sciences de l'ingénieur/Mécanique/Mécanique des matériaux Physique/Mécanique/Mécanique des matériaux |
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| corrosion – reinforced concrete – damage modelling |
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| hal-00551352, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00551352 | |
| oai:hal.archives-ouvertes.fr:hal-00551352 | |
| Contributeur : Sabine Caré | |
| Soumis le : Lundi 3 Janvier 2011, 15:03:42 | |
| Dernière modification le : Jeudi 28 Juillet 2011, 16:36:32 | |
