Concrete shrinkage and creep under drying/wetting cycles
| Autor: | Frédéric Skoczylas, Yang Song, Franck Agostini, Xavier Bourbon, Qier Wu |
|---|---|
| Přispěvatelé: | Changzhou Institute of Technology, Laboratoire de Mécanique, Multiphysique, Multiéchelle - UMR 9013 (LaMcube), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Agence Nationale pour la Gestion des Déchets Radioactifs (ANDRA) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
0211 other engineering and technologies 02 engineering and technology Building and Construction [SPI.MECA.MSMECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Materials and structures in mechanics [physics.class-ph] Nuclear reactor 021001 nanoscience & nanotechnology Durability law.invention [SPI.MAT]Engineering Sciences [physics]/Materials Creep law 021105 building & construction [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] Cylinder stress General Materials Science Imbibition Wetting [SPI.GCIV.STRUCT]Engineering Sciences [physics]/Civil Engineering/Structures Composite material 0210 nano-technology Desiccation ComputingMilieux_MISCELLANEOUS Shrinkage |
| Zdroj: | Cement and Concrete Research Cement and Concrete Research, Elsevier, 2021, 140, pp.106308. ⟨10.1016/j.cemconres.2020.106308⟩ Cement and Concrete Research, 2021, 140, pp.106308. ⟨10.1016/j.cemconres.2020.106308⟩ |
| ISSN: | 0008-8846 |
| DOI: | 10.1016/j.cemconres.2020.106308⟩ |
| Popis: | Concrete shrinkage and creep under variable hydric conditions are important factors for the safety and durability of concrete especially in nuclear reactor or nuclear waste storage background. A large (and long – more than 900 days) experimental campaign, conducted on two different concretes, has therefore been designed to study the strains of non loaded and loaded concretes submitted to drying and liquid water imbibition cycles. For the purposes of comparison, concrete strains and mass variations during drying only (50% RH) and/or following cycles of drying/rewetting were also recorded. This allowed the identification of desiccation shrinkage, basic creep and drying creep at 10 MPa of axial stress. Important results were found and have shown that the final mass and strain are not deeply modified by the introduction of a rewetting phase either for a loaded or a non loaded material. |
| Databáze: | OpenAIRE |
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