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Materials (Basel). 2014 Dec 23;8(1):1-15. doi: 10.3390/ma8010001.

First Exploratory Study on the Ageing of Rammed Earth Material.

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University of Savoie, Laboratoire Optimisation de la Conception Ingénierie de l'Environnement, CNRS, Polytech Annecy-Chambery, 73000 Chambery, France.
University of Lyon, LTDS, CNRS, LGCB, Ecole Nationale des Travaux Publics de l'Etat, 69120 Vaulx-en-Velin, France.


Rammed earth (RE) is attracting renewed interest throughout the world thanks to its "green" characteristics in the context of sustainable building. In this study, the ageing effects on RE material are studied on the walls which have been constructed and exposed for 22 years to natural weathering. First, mechanical characteristics of the "old" walls were determined by two approaches: in-situ dynamic measurements on the walls; laboratory tests on specimens which had been cut from the walls. Then, the walls' soil was recycled and reused for manufacturing of new specimens which represented the initial state. Comparison between the compressive strength, the Young modulus of the walls after 22 years on site and that of the initial state enables to assess the ageing of the studied walls.


ageing; in-situ measurement; rammed earth; sustainable development

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