Effects of the anisotropy of extruded earth bricks on their hygrothermal properties

Pascale Maillard , Jean-Emmanuel Aubert (1)

1 LMDC - Laboratoire Matériaux et Durabilité des constructions

The study focuses on the thermal and hydric properties of extruded earth bricks. The thermal conductivity and water vapour permeability tests highlight anisotropic behaviour of the bricks depending on the extrusion direction during the production process. The results confirm that the extrusion process has a major influence on the orientation of clay layers and has an impact on the hygrothermal properties. (C) 2014 Elsevier Ltd. All rights reserved.

Mots clés: Anisotropy; Thermal conductivity; rammed earth; block; Earth brick; Earth construction; walls; Water vapour permeability

Domaines: Génie civil

Pascale Maillard, Jean-Emmanuel Aubert. Effects of the anisotropy of extruded earth bricks on their hygrothermal properties. Construction and Building Materials, 2014, 63, pp.56--61. ⟨10.1016/j.conbuildmat.2014.04.001⟩. ⟨hal-01850787⟩