{"id":152289,"date":"2026-04-01T13:30:00","date_gmt":"2026-04-01T11:30:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=152289"},"modified":"2026-03-27T14:02:36","modified_gmt":"2026-03-27T13:02:36","slug":"saegemehl-soll-feuer-abhalten","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/saegemehl-soll-feuer-abhalten\/","title":{"rendered":"La sciure de bois est cens\u00e9e emp\u00eacher le feu de se propager"},"content":{"rendered":"<p class=\"bodytext\">Des chercheurs de l&rsquo;&Eacute;cole polytechnique f&eacute;d&eacute;rale de Zurich (<a href=\"https:\/\/ethz.ch\/de.html\" target=\"_blank\" rel=\"noopener\">ETH<\/a>) et du Laboratoire f&eacute;d&eacute;ral d&rsquo;essai des mat&eacute;riaux et de recherche (<a href=\"https:\/\/www.empa.ch\/\" target=\"_blank\" rel=\"noopener\">Empa<\/a>) ont mis au point un mat&eacute;riau isolant &agrave; base de sciure de bois pouvant &ecirc;tre utilis&eacute; pour l&rsquo;am&eacute;nagement int&eacute;rieur ignifuge, selon un <a href=\"https:\/\/ethz.ch\/de\/news-und-veranstaltungen\/eth-news\/news\/2026\/03\/aus-saegemehl-wird-ein-brandschutzmaterial.html\" target=\"_blank\" rel=\"noopener\">communiqu&eacute;<\/a>.<\/p>\n<p class=\"bodytext\">Ce composite est compos&eacute; de sciure de bois et de struvite, un phosphate d&rsquo;ammonium et de magn&eacute;sium cristallin et incolore. Au cours de leurs travaux, les chercheurs ont d&ucirc; surmonter la difficult&eacute; de lier les mat&eacute;riaux aux particules de sciure de bois lors du processus de cristallisation de la struvite. Ils y sont parvenus gr&acirc;ce &agrave; une enzyme extraite de p&eacute;pins de past&egrave;que. Le min&eacute;ral cristallis&eacute; comble les vides de la sciure de bois. Le mat&eacute;riau ainsi obtenu est press&eacute; en panneaux et s&eacute;ch&eacute; &agrave; temp&eacute;rature ambiante.<\/p>\n<p class=\"bodytext\">D&rsquo;apr&egrave;s les premiers tests, ce composite pr&eacute;sente des propri&eacute;t&eacute;s de r&eacute;sistance au feu similaires &agrave; celles des panneaux de particules li&eacute;s au ciment classiques. Les tests men&eacute;s en collaboration avec <a href=\"https:\/\/www.polito.it\/en\" target=\"_blank\" rel=\"noopener\">l&rsquo;&Eacute;cole polytechnique de Turin<\/a> ont montr&eacute; que les panneaux de sciure de bois &agrave; base de struvite mettent trois fois plus de temps &agrave; s&rsquo;enflammer que le bois d&rsquo;&eacute;pic&eacute;a. De plus, ce processus entra&icirc;ne la formation d&rsquo;un mat&eacute;riau inorganique qui limite la propagation des flammes.<\/p>\n<p class=\"bodytext\">Pour permettre la mise &agrave; l&rsquo;&eacute;chelle du proc&eacute;d&eacute; et l&rsquo;utilisation de ce nouveau mat&eacute;riau, il est important de r&eacute;duire les co&ucirc;ts de fabrication. Actuellement, la production du liant &agrave; partir de ce min&eacute;ral est plus co&ucirc;teuse que celle des liants polym&egrave;res ou du ciment. Cela pourrait changer avec la mise en place d&rsquo;un nouveau circuit de recyclage : la struvite est produite en grandes quantit&eacute;s dans les stations d&rsquo;&eacute;puration. &laquo; Nous pourrions utiliser ces d&eacute;p&ocirc;ts comme mati&egrave;re premi&egrave;re pour notre mat&eacute;riau de construction &raquo;, d&eacute;clare Ronny K&uuml;rsteiner, chercheur dans le domaine des mat&eacute;riaux &agrave; base de bois &agrave; l&rsquo;ETH, cit&eacute; dans le communiqu&eacute;.<\/p>\n<p class=\"bodytext\"><a href=\"https:\/\/www.cell.com\/chem-circularity\/fulltext\/S3051-2948(25)00004-0?_returnURL=https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S3051294825000040?showall=true\" target=\"_blank\" rel=\"noopener\">L&rsquo;&eacute;tude<\/a> est publi&eacute;e dans la revue sp&eacute;cialis&eacute;e <a href=\"https:\/\/www.cell.com\/chem-circularity\/home\" target=\"_blank\" rel=\"noopener\">Chem Circularity<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Des chercheurs de l&rsquo;\u00c9cole polytechnique f\u00e9d\u00e9rale de Zurich et du Laboratoire f\u00e9d\u00e9ral d&rsquo;essai des mat\u00e9riaux et de recherche d\u00e9veloppent un mat\u00e9riau isolant \u00e0 base de sciure de bois pouvant servir de protection contre l&rsquo;incendie. Ce mat\u00e9riau enrichi en min\u00e9raux est destin\u00e9 \u00e0 \u00eatre utilis\u00e9 dans l&rsquo;am\u00e9nagement int\u00e9rieur ignifuge.<\/p>\n","protected":false},"author":2,"featured_media":152290,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pmpro_default_level":"","inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[22699,8747,743,22357],"tags":[58040,58041,872,3931,56532,2002],"class_list":["post-152289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-energie","category-immonews-fr","category-industrie-du-batiment","tag-brandschutzmaterial","tag-daemmstoffe-2","tag-immoinvest-fr","tag-immonews-fr","tag-kreislaufwirtschaft-bau","tag-news-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":["Ja"],"lead":"Des chercheurs de l'\u00c9cole polytechnique f\u00e9d\u00e9rale de Zurich et du Laboratoire f\u00e9d\u00e9ral d'essai des mat\u00e9riaux et de recherche d\u00e9veloppent un mat\u00e9riau isolant \u00e0 base de sciure de bois pouvant servir de protection contre l'incendie. Ce mat\u00e9riau enrichi en min\u00e9raux est destin\u00e9 \u00e0 \u00eatre utilis\u00e9 dans l'am\u00e9nagement int\u00e9rieur ignifuge.","autor":"ce\/ww","ort":"Z\u00fcrich\/D\u00fcbendorf ZH ","bildunterschrift":"","bild_im_grid":false,"gallerie":"","newsim":""},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Des chercheurs de l&#039;\u00c9cole polytechnique f\u00e9d\u00e9rale de Zurich et du Laboratoire f\u00e9d\u00e9ral d&#039;essai des mat\u00e9riaux et de recherche d\u00e9veloppent un mat\u00e9riau isolant \u00e0 base de sciure de bois pouvant servir de protection contre l&#039;incendie. 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