Resistance to mold development assessment of bio-based building materials

Abstract : Nowadays, insulating building materials are developed from the valorization of agro-resources. They show high ecological and hygrothermal performance. Before making them available on the market, there is a need to classify them according to their decay resistance. This paper aims to propose a test method that qualifies bio-based composites with respect to their performance. An accelerated aging test was carried out on 5 composites made with two different agro-resources (hemp and rape) and with different binders. It consists of exposing the specimens to (30 °C; 90% RH) for three months. During the test, the specimens are regularly weighed and photographed. The sample mass and the percentage of surface contaminated by fungi are measured along the test. Finally, a microscopic view allows identifying the species of the developed molds.
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Submitted on : Friday, November 9, 2018 - 1:27:36 PM
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M. Viel, F. Collet, Y. Lecieux, M.L.M. François, V. Colson, et al.. Resistance to mold development assessment of bio-based building materials. Composites Part B: Engineering, Elsevier, 2019, 158, pp.406-418. ⟨10.1016/j.compositesb.2018.09.063⟩. ⟨hal-01903670⟩

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