Rice husk-earth based composites: A novel bio-based panel for buildings refurbishment
作者： Ana Antunes , Paulina Faria , Vítor Silva , Ana Brás
DOI: 10.1016/J.CONBUILDMAT.2019.06.074
关键词:
摘要: Abstract With the aim of developing economic and ecological bio-based composite panels to be used on indoor wall or ceiling coating systems, contributing hygrothermal comfort health, three different formulations were produced, differing content pre-treatment rice husk: 15% 30%, only dried previously boiled. Composite samples tested for biological development several physic-mechanical characteristics. Increasing husk decreases thermal conductivity due bulk density decrease, decreasing ultrasound velocity, flexural strength, abrasion fire resistance, but improving moisture buffering capacity at least in 20%. For high husk-content composites, its pre-boiling susceptibility although resistance fire, most probably destruction cellulose wall, significantly increases compressive because a better bond between earthen matrix, quicker reaching water vapour adsorption limit.
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