Performances of flax shive-based lightweight composites with rapid hardening

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Dubois, Vincent | Leblanc, Alexandre | Carpentier, Olivier | Alhaik, G. | Wirquin, Eric

Edité par HAL CCSD ; Elsevier

This research work aims to develop a rapid hardening lightweight composite including flax shives, foaming agent and earthern materials. The results show a satisfying workability just after the mixing step and a rapid hardening of about less than thirty minutes. The mixes with a large amount of flax shives show a thermal conductivity inferior to 0.1 W.m−1.K−1 and porous-like acoustic absorption coefficients. Even if the mechanical performances are low (fc28days = 0.1–1 MPa), the developed mixes, in association with a structural material, can be used with advantage the 3D printing technique.

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