Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer - Archive ouverte HAL
Article Dans Une Revue Construction and Building Materials Année : 2018

Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer

Résumé

In this paper, we study the influence of two types of starch on earth hemp or flax straw mixtures at fresh and hardened states. The main goal is to propose new non-load bearing earthen for indoor. The mass percentage of starch/binder (S/B) in mixtures was fixed at 1% of mass. The VEBE consistometer test has been used to fix a similar consistency between mixtures. The targeted workability has to allow an easy introduction of materials in the moulds. Adding both of starch has shown a positive effect on mixtures workability at the fresh state and mechanical resistances at the hardened state. At hardened state, mechanical and thermal-acoustic performances have been measured on laboratory samples and blocks at real scale. Results have shown a significant effect of starch on mechanical strengths.

Dates et versions

hal-03263972 , version 1 (17-06-2021)

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Citer

Ghaith Alhaik, Vincent Dubois, Eric Wirquin, Alexandre Leblanc, Georges Aouad. Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer. Construction and Building Materials, 2018, 186, pp.762--772. ⟨10.1016/j.conbuildmat.2018.07.209⟩. ⟨hal-03263972⟩
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