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Title: Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer
Authors: Alhaik, Ghaith
Dubois, Vincent
Wirquin, Eric
Leblanc, Alexandre
Aouad, Georges 
Affiliations: Department of Civil and Environmental Engineering 
Keywords: Starch
Earth/straw blocks
Mechanical performances
Issue Date: 2018
Part of: Journal of construction and building materials
Volume: 186
Start page: 762
End page: 772
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.
DOI: 10.1016/j.conbuildmat.2018.07.209
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Civil and Environmental Engineering

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