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Assessment of Durability of Bio-based Earth Composites
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Laborel-Préneron, Aurélie et Faria, Paulina et Aubert, Jean-Emmanuel et Magniont, Camille (2021) Assessment of Durability of Bio-based Earth Composites. Recent Progress in Materials, 03 (02). p. 1. ISSN 26895846 [Article]
Le plein texte n'est pas disponible pour ce document.Résumé (en anglais)
Bio-based earth composites present various environmental benefits, such as usable wastes, coproducts, abundant or renewable materials, etc. Moreover, the incorporation of bioaggregates in the earth matrix allows the buildings to act as an effective carbon sink. A growing number of studies are now focusing on the mechanical and hygrothermal properties of bio-based earth building materials. However, the durability of these types of material is a major concern, and knowledge of their various aspects is essential to anticipate maintenance and sustain the performance levels. Here, the durability of compressed earth composites, valorizing discarded earth containing 3% of barley straw, hemp shiv, or rice husk, is investigated. Due to the lack of internationally recognized standards to assess the durability of earthen materials and products, we proposed some testing procedures and discussed their relevance. The addition of these three bioaggregates decreases stiffness, as estimated by ultrasound velocity, and improves the resistance to impact and erosion by water. However, water absorption under low pressure is increased, and dry abrasion resistance is decreased. Moreover, the rice husk composite presents the best compromise.
| Type: | Article |
|---|---|
| Auteurs: | Auteurs E-mail Laborel-Préneron, Aurélie NON SPECIFIÉ Faria, Paulina paulina.faria@fct.unl.pt Aubert, Jean-Emmanuel NON SPECIFIÉ Magniont, Camille NON SPECIFIÉ |
| Langues: | Anglais |
| Mots-clés libres: | Earth composite; straw; hemp shiv; rice husk; performance; durability |
| Sujets: | C.ARCHITECTURE > 04. Matériaux de construction F.TECHNIQUES SCIENTIFIQUES ET METHODOLOGIES DE CONSERVATION > 06. Analyse des matériaux F.TECHNIQUES SCIENTIFIQUES ET METHODOLOGIES DE CONSERVATION > 11. Essai de vieillissement artificiel |
| Volume: | 03 |
| Numéro: | 02 |
| ISSN: | 26895846 |
| Déposé par: | Prof. Paulina Faria |
| Date de dépôt: | 31 mars 2022 10:41 |
| Dernière modification: | 31 mars 2022 10:41 |
| URI: | https://openarchive.icomos.org/id/eprint/2603 |
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