Experimental and finite element analysis of shrinkage of concrete made with recycled coarse aggregates subjected to thermal loading
| Autor: | Nassira Lahmar, El-Hadj Meziane, Abdelkader Haddi, Mostefa Hamrat, Farid Bouziadi, Bensaid Boulekbache, Chafika Djelal |
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| Přispěvatelé: | Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 (LGCgE), Université d'Artois (UA)-Université de Lille-Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-JUNIA (JUNIA), Université d'Artois (UA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Shrinkage strain 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Isothermal process Finite element method 0201 civil engineering [SPI.GCIV]Engineering Sciences [physics]/Civil Engineering 021105 building & construction Thermal General Materials Science Experimental work Composite material Curing (chemistry) Civil and Structural Engineering Shrinkage |
| Zdroj: | Construction and Building Materials Construction and Building Materials, Elsevier, 2020, 247, pp.118564. ⟨10.1016/j.conbuildmat.2020.118564⟩ Construction and Building Materials, 2020, 247, pp.118564. ⟨10.1016/j.conbuildmat.2020.118564⟩ |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2020.118564⟩ |
| Popis: | This study deals with an experimental and numerical investigation focused on the total shrinkage of concrete made with recycled coarse aggregates (RCA) and subjected to various isothermal temperatures. The objective of the experimental work is to assess the influence of the external temperatures (20, 35 and 50 °C) and the percentage of RCA replacements on the total shrinkage of recycled aggregates concrete. Natural coarse aggregates (NCA) are substituted by RCA at different weight levels (0%, 25%, 50%, 75% and 100%). The obtained results relate that the mechanical properties are adversely affected by the RCA replacement ratio. In addition, the total shrinkage strain rises with increase in the replacement ratio and the curing temperature. On the other hand, finite element analysis (FEA) using ANSYSⒸ software is used to predict the shrinkage of concrete regarding the thermal and mechanical properties. The shrinkage is estimated by means of the maturity approach and the two-phase serial model. The results founded from the FEA illustrate a good accuracy with the experimental ones. |
| Databáze: | OpenAIRE |
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