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Development of Wood-Crete from Hardwood and Softwood Sawdust

Auteur(s):

Médium: article de revue
Langue(s): en 
Publié dans: The Open Construction and Building Technology Journal, , n. 1, v. 7
Page(s): 108-117
DOI: 10.2174/1874836801307010108
Abstrait: <p>Wood-crete, a new building material has previously been developed from sawdust, inorganic binder and addition of waste paper, finding its use mainly for wall panelling or other non- and semi-structural applications with good thermal insulating properties.</p> </sec> <sec> <title /> <p>In this study, the properties of wood-crete were investigated based on the type of wood sawdust – hardwood (beech and oak) and softwood (pine and cedar). The results showed that (1) the compressive strength of wood-crete was closely related to the wood species, with the compressive strength of 3.93MPa being for hardwood wood-crete compared to 1.37MPa and 0.26MPa of wood-crete from softwood and mixed wood respectively; (2) wood-crete from hardwood sawdust had a higher density than those made from softwood sawdust and mixed wood; (3) particle size had a significant influence on the strength properties and density of wood-crete with wood-crete made from 1mm particle size recording a higher compressive strength and density compared to 2mm and 3mm particle size. The optimum size for wood-crete was dependent on the wood species; (4) thermal conductivity of wood-crete was closely related to the chemical composition of various wood species, with softwood wood-crete having about 20% lower thermal conductivity compared to hardwood wood-crete; (5) a ratio of 1:2 of sawdust to binder was found advisable for the production of wood-crete for various wood species and particle sizes investigated. The compressive strength of wood-crete made from sawdust of both softwood and hardwood was similar to or higher than that of hempcrete, indicating their suitability for wall panelling or other non- and semi-structural applications. The results of this study provide an important foundation for choosing what wood species, particle sizes and combinations of sawdust to be used for the production of wood-crete.</p> </sec> </td> </tr> <tr> <th>Copyright:</th> <td>© 2013 Eboziegbe Patrick Aigbomian, Mizi Fan </td> </tr> <tr> <th>License:</th> <td><p>Cette oeuvre a été publiée sous la license <i class="fa fa-creative-commons" aria-hidden="true"></i> Creative Commons <a href="https://creativecommons.org/licenses/by/4.0/deed.fr" target="_blank" itemprop="license">Attribution 4.0 (CC-BY 4.0)</a>. Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original.</p> </td> </tr> </tbody> </table> <div class="paywall-content"> </div> </div> </div><!-- /.ym-g60 --> <div class="ym-g40 ym-gr"> <div class="ym-gbox-right"> <div class="bottom-buttons"> <p class="advertisements">Publicité</p> <ul class="sponsorlist"> <li class="ads-3"> <a href="https://securepubads.g.doubleclick.net/gampad/jump?iu=/57419936/StructuraeButtonFR3&sz=120x60&rdp=1&c=937645" target="_blank" rel="nofollow"> <img src="https://securepubads.g.doubleclick.net/gampad/ad?iu=/57419936/StructuraeButtonFR3&sz=120x60&rdp=1&c=937645" alt="Publicité"> </a> </li> <li class="ads-4"> <a href="https://securepubads.g.doubleclick.net/gampad/jump?iu=/57419936/StructuraeButtonFR4&sz=120x60&rdp=1&c=937645" target="_blank" rel="nofollow"> <img src="https://securepubads.g.doubleclick.net/gampad/ad?iu=/57419936/StructuraeButtonFR4&sz=120x60&rdp=1&c=937645" alt="Publicité"> </a> </li> <li class="ads-5"> <a 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