{"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;\u00c9cole polytechnique f\u00e9d\u00e9rale de Zurich (<a href=\"https:\/\/ethz.ch\/de.html\" target=\"_blank\" rel=\"noopener\">ETH<\/a>) et du Laboratoire f\u00e9d\u00e9ral d&rsquo;essai des mat\u00e9riaux et de recherche (<a href=\"https:\/\/www.empa.ch\/\" target=\"_blank\" rel=\"noopener\">Empa<\/a>) ont mis au point un mat\u00e9riau isolant \u00e0 base de sciure de bois pouvant \u00eatre utilis\u00e9 pour l&rsquo;am\u00e9nagement int\u00e9rieur 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\u00e9<\/a>.<\/p>\n<p class=\"bodytext\">Ce composite est compos\u00e9 de sciure de bois et de struvite, un phosphate d&rsquo;ammonium et de magn\u00e9sium cristallin et incolore. Au cours de leurs travaux, les chercheurs ont d\u00fb surmonter la difficult\u00e9 de lier les mat\u00e9riaux aux particules de sciure de bois lors du processus de cristallisation de la struvite. Ils y sont parvenus gr\u00e2ce \u00e0 une enzyme extraite de p\u00e9pins de past\u00e8que. Le min\u00e9ral cristallis\u00e9 comble les vides de la sciure de bois. Le mat\u00e9riau ainsi obtenu est press\u00e9 en panneaux et s\u00e9ch\u00e9 \u00e0 temp\u00e9rature ambiante.<\/p>\n<p class=\"bodytext\">D&rsquo;apr\u00e8s les premiers tests, ce composite pr\u00e9sente des propri\u00e9t\u00e9s de r\u00e9sistance au feu similaires \u00e0 celles des panneaux de particules li\u00e9s au ciment classiques. Les tests men\u00e9s en collaboration avec <a href=\"https:\/\/www.polito.it\/en\" target=\"_blank\" rel=\"noopener\">l&rsquo;\u00c9cole polytechnique de Turin<\/a> ont montr\u00e9 que les panneaux de sciure de bois \u00e0 base de struvite mettent trois fois plus de temps \u00e0 s&rsquo;enflammer que le bois d&rsquo;\u00e9pic\u00e9a. De plus, ce processus entra\u00eene la formation d&rsquo;un mat\u00e9riau inorganique qui limite la propagation des flammes.<\/p>\n<p class=\"bodytext\">Pour permettre la mise \u00e0 l&rsquo;\u00e9chelle du proc\u00e9d\u00e9 et l&rsquo;utilisation de ce nouveau mat\u00e9riau, il est important de r\u00e9duire les co\u00fbts de fabrication. Actuellement, la production du liant \u00e0 partir de ce min\u00e9ral est plus co\u00fbteuse que celle des liants polym\u00e8res 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\u00e9s dans les stations d&rsquo;\u00e9puration. \u00ab Nous pourrions utiliser ces d\u00e9p\u00f4ts comme mati\u00e8re premi\u00e8re pour notre mat\u00e9riau de construction \u00bb, d\u00e9clare Ronny K\u00fcrsteiner, chercheur dans le domaine des mat\u00e9riaux \u00e0 base de bois \u00e0 l&rsquo;ETH, cit\u00e9 dans le communiqu\u00e9.<\/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;\u00e9tude<\/a> est publi\u00e9e dans la revue sp\u00e9cialis\u00e9e <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":{"_acf_changed":false,"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"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"],"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":"","zusammenfassung":"","bild_im_grid":false,"gallerie":"","newsim":""},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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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