Abstract
The hydromechanical behaviour of compacted earth samples was experimentally analysed with a triaxial apparatus at controlled hygrometry and temperature. The results show that the relative humidity at which the samples were stored have a strong impact on the mechanical characteristics of earthen material: both the maximum deviator stress and Young’s modulus decrease with the increase of relative humidity, meanwhile, more plastic characteristics are observed. Non-negligible swelling/shrinkage phenomena induced by variations of relative humidity are also observed. These results are eventually analysed in the light of a fully coupled hygrothermal–hydromechanical model.
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Acknowledgements
The present work has been supported by the French Research National Agency (ANR) through the “Villes et Bâtiments Durables” program (Project Primaterre no. ANR-12-VBDU-0001). The second author is supported by the China Scholarship Council (CSC) with a Ph.D. Scholarship for his research work.
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Fabbri, A., Xu, L., Wong, H., McGregor, F. (2019). Hygrothermal and Hydromechanical Behaviours of Unstabilized Compacted Earth. In: Reddy, B., Mani, M., Walker, P. (eds) Earthen Dwellings and Structures. Springer Transactions in Civil and Environmental Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-5883-8_39
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DOI: https://doi.org/10.1007/978-981-13-5883-8_39
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