Experimental Characterization of an Earth Eco-Efficient Plastering Mortar

Abstract : Earthen plastering mortars are becoming recognized as highly eco-efficient. The assessment of their technical properties needs to be standardized, but only a German standard exists for the moment. An extended experimental campaign was developed in order to assess multiple properties of a ready-mixed earth plastering mortar and also to increase scientific knowledge of the influence of test procedures on those properties. The experimental campaign showed that some aspects related to the equipment, type of samples, and sample preparation can be very important; although others seemed to have less influence on the results and the classification of mortars. It also showed that some complementary tests can easily be performed and considered together with the standardized ones, whereas others may need to be improved. The plaster satisfied the requirements of the existing German standard but, most importantly, it seemed adequate for application as rehabilitation plaster on historic and modern masonry buildings. Apart from their aesthetic aspect, the contribution of earthen plasters to eco-efficiency and, particularly, to hygrometric indoor comfort should be highlighted. (C) 2015 American Society of Civil Engineers.
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Paulina Faria, Tania Santos, Jean-Emmanuel Aubert. Experimental Characterization of an Earth Eco-Efficient Plastering Mortar. Journal of Materials in Civil Engineering, American Society of Civil Engineers, 2016, 28 (1), pp.04015085. ⟨10.1061/(ASCE)MT.1943-5533.0001363⟩. ⟨hal-01849699⟩

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