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Requirements for the respect of the environment encourage to reduce the impact of human activityon the nature. Civil engineering answers these requirements by the development of ecologicalconstruction materials. This paper deals with the transformation of clay raw materials which enablethe processing of environmentally friendly construction materials: in addition to their biodegradability,the alveolar fired clay materials allow energy saving in home heating thanks to theirthermal isolation properties. But their manufacturing is a high energy consumption process, inparticular during compaction, drying and firing which contribute to the emission of greenhousegases. The goal of this paper is to study the rheology of clay pastes in order to develop low energyin manufacturing processes. For this purpose, theoretical and experimental approaches were carriedout on six clay varieties. In the theoretical approach, a finite element FE simulation modelhas been developed for pressing a non-rigid material predicting deformations and stresses occurringwithin the clay structure. Experiments have then been carried out to validate the finite elementmodelling. In this experimental approach, the clay pastes were transformed with water contentrespecting the Atterberg limits which determine the plasticity of clays. The samples compactionhas been carried out under variable loadings in order to determine the suitable low energyconsumption loading.

KEYWORDS

Simulation Model, Environmentally Friendly, Construction Materials, Rheological Behaviour, Clay Materials, Energy Saving

Cite this paper

Traore, B., Atcholi, K.E., Samah, O.-D., Gomes, S. and Beda, T. 2016 Numerical Simulation and Experimental Characterization of Clay Paste under Loads for Energy Saving in Clay Materials Processing. Journal of Minerals and Materials Characterization and Engineering, 4, 154-163. doi: 10.4236-jmmce.2016.42015.





Autor: Brahiman Traore1,2, Kokou Esso Atcholi1, Ouro-Djobo Samah3, Samuel Gomes1, Tibi Beda4

Fuente: http://www.scirp.org/



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