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THERMAL CONDUCTIVITY OF HEMP CONCRETES: VARIATION WITH FORMULATION, DENSITY AND WATER CONTENT

Florence Collet 1, * Sylvie Prétot 2
* Corresponding author
1 MT Rhéo
LGCGM - Laboratoire de Génie Civil et Génie Mécanique
Abstract : This study investigates the effect of formulation, density and water content on the thermal conductivity of hemp concretes. The investigations are based on experimental measurements and on self-consistent scheme modelling. The thermal conductivity of studied materials ranges from 90 to 160 mW/(m.K) at (23°C; 50%HR). The impact of density on thermal conductivity is much more important than the impact of moisture content. It is shown that the thermal conductivity increases by about 54 % when the density increases by 2/3 while it increases by less than 15 % to 20 % from dry state to 90%RH.
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https://hal.archives-ouvertes.fr/hal-01003739
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Submitted on : Tuesday, June 10, 2014 - 3:32:47 PM
Last modification on : Wednesday, January 13, 2021 - 9:40:39 AM
Long-term archiving on: : Wednesday, September 10, 2014 - 11:55:51 AM

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Florence Collet, Sylvie Prétot. THERMAL CONDUCTIVITY OF HEMP CONCRETES: VARIATION WITH FORMULATION, DENSITY AND WATER CONTENT. Construction and Building Materials, Elsevier, 2014, 65, pp.612-619. ⟨10.1016/j.conbuildmat.2014.05.039⟩. ⟨hal-01003739⟩

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