Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 214, Issue -, Pages 685-697Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2019.04.139
Keywords
Agricultural waste valuation; Hemp shiv; Corn cob; Green binder; Hygrothermal characterization; Mechanical properties
Categories
Funding
- European Union's Horizon 2020 research and innovation program [636835]
- Region Bretagne
- European Union
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The present study has investigated the scope for valuation of agro-resources by-products as aggregates and as binding material to produce rigid fully bio-based composite panels. Two types of aggregates: hemp shiv and corn cob residues (obtained after alkali treatment on the corn cob), and six types of green binders are investigated. Specimens are produced to verify the gluing effect, to characterize mechanical, thermal and hygric properties of developed composites and to identify the best aggregate-binder mixture. They show interesting thermal conductivity ranging from 67 to 148 mW/(m.K) at dry state, excellent hygric properties (MBV > 2 g/(m(2)).%RH)) and high enough mechanical properties to be self bearing. These results suggest that developed composites can be used as building materials but not for the same types of use. In fact, some composites would be more suitable for thermal insulating products and others would be better suited for indoor facing panels. (C) 2019 Elsevier Ltd. All rights reserved.
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