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Impact of raw materials on the mechanical and thermal properties of hemp concretes



Title: Impact of raw materials on the mechanical and thermal properties of hemp concretes
Author(s): E. Gourlay and L. Arnaud
Paper category : conference
Book title: International RILEM Conference on Advances in Construction Materials Through Science and Engineering
Editor(s): Christopher Leung and K.T. WAN
ISBN: 978-2-35158-116-2
e-ISBN: 978-2-35158-117-9
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 712 - 719
Total Pages: 8
Nb references: 10
Language: English


Abstract: Hemp concrete is a multifunctional ecological material used in buildings. Due to its high porosity (about 80% in volume), it presents an “atypical” mechanical behavior and its thermal and acoustical properties are particularly interesting. It is today possible to design this material according to the required use. This paper focuses on the impact of raw materials (hemp particles and binder) on the mechanical and thermal properties of the hemp concrete. It is shown that a physico-chemical interaction between the binder and the vegetable particles may disrupt the mechanical hardening and setting of the material. Moreover, the hemp concrete compressive strength may be correlated with the morphological characteristics of the hemp particles. Finally, the water vapor transfers and the phase changes (condensation and vaporization) within the material allow cushioning significantly the changes in outside temperature.


Online publication: 2011-10-31
Publication type : full_text
Public price (Euros): 0.00