Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Influence of lignocellulosic aggregate coating with paraffin wax on flax shive and cement-shive composite properties
Highlights Flax shives are used with cement for making lightweight composite. Uncoated and coated shives with paraffin wax are used as lightweight aggregates. Paraffin wax is able to protect shives from water and to inhibit swelling. Improvement in mechanical and hygral properties of the composite due to coated shives. Small increase in thermal conductivity and bulk density with coated shive use.
Abstract Due to their low cost, lightweight and thermal insulation properties, lignocellulosic by-products received a particular attention, in the recent years, for manufacturing lightweight concretes. However these by-products are not fully compatible with cement matrix leading to setting delay, significant dimensional variations, and low mechanical strengths. To avoid such drawbacks, a coating process of flax shives using paraffin wax is proposed in this study. This will lead to reduction in shive water absorption. Compared to composites elaborated with raw shives, the composite obtained in this work exhibited significant improvements in hydrous behavior and mechanical strengths with moderate increase in apparent bulk density and thermal conductivity.
Influence of lignocellulosic aggregate coating with paraffin wax on flax shive and cement-shive composite properties
Highlights Flax shives are used with cement for making lightweight composite. Uncoated and coated shives with paraffin wax are used as lightweight aggregates. Paraffin wax is able to protect shives from water and to inhibit swelling. Improvement in mechanical and hygral properties of the composite due to coated shives. Small increase in thermal conductivity and bulk density with coated shive use.
Abstract Due to their low cost, lightweight and thermal insulation properties, lignocellulosic by-products received a particular attention, in the recent years, for manufacturing lightweight concretes. However these by-products are not fully compatible with cement matrix leading to setting delay, significant dimensional variations, and low mechanical strengths. To avoid such drawbacks, a coating process of flax shives using paraffin wax is proposed in this study. This will lead to reduction in shive water absorption. Compared to composites elaborated with raw shives, the composite obtained in this work exhibited significant improvements in hydrous behavior and mechanical strengths with moderate increase in apparent bulk density and thermal conductivity.
Influence of lignocellulosic aggregate coating with paraffin wax on flax shive and cement-shive composite properties
Al-Mohamadawi, Ali (Autor:in) / Benhabib, Karim (Autor:in) / Dheilly, Rose-Marie (Autor:in) / Goullieux, Adeline (Autor:in)
Construction and Building Materials ; 102 ; 94-104
28.10.2015
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2016