{"id":65408,"date":"2023-10-12T13:00:00","date_gmt":"2023-10-12T11:00:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=65408"},"modified":"2023-10-09T08:58:20","modified_gmt":"2023-10-09T06:58:20","slug":"empa-forscht-zu-lehm-als-nachhaltigem-baustoff","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/empa-forscht-zu-lehm-als-nachhaltigem-baustoff\/","title":{"rendered":"L&rsquo;Empa fait de la recherche sur l&rsquo;argile comme mat\u00e9riau de construction durable"},"content":{"rendered":"<p class=\"bodytext\">L&rsquo;argile lib\u00e8re nettement moins de CO2 que le b\u00e9ton, explique le Laboratoire f\u00e9d\u00e9ral d&rsquo;essai des mat\u00e9riaux et de recherche<a href=\"https:\/\/www.empa.ch\/web\/empa\/\" target=\"_blank\" rel=\"noopener\">(Empa<\/a>) dans un <a href=\"https:\/\/www.empa.ch\/web\/s604\/baumaterial-lehm\" target=\"_blank\" rel=\"noopener\">communiqu\u00e9<\/a>. Ellina Bernard, du laboratoire B\u00e9ton &amp; Asphalte de l&rsquo;Empa \u00e0 D\u00fcbendorf et de la chaire de construction durable de l&rsquo;<a href=\"https:\/\/ethz.ch\/de.html\" target=\"_blank\" rel=\"noopener\">Ecole polytechnique f\u00e9d\u00e9rale de Zurich<\/a>, travaille \u00e0 faire de l&rsquo;argile une alternative durable au b\u00e9ton. Leur projet est soutenu par une subvention Ambizione du Fonds national suisse<a href=\"https:\/\/snf.ch\/de\" target=\"_blank\" rel=\"noopener\">(FNS<\/a>).<\/p>\n<p class=\"bodytext\">L&rsquo;argile se trouve partout dans le monde, dans des compositions g\u00e9ologiques diff\u00e9rentes. Ce mat\u00e9riau de construction durable pourrait remplacer le b\u00e9ton aussi bien dans les structures non porteuses que dans les murs porteurs des b\u00e2timents r\u00e9sidentiels. Pour une utilisation \u00e0 grande \u00e9chelle, Bernard et son \u00e9quipe veulent donc d&rsquo;une part d\u00e9finir des normes pour la composition et la r\u00e9sistance m\u00e9canique. D&rsquo;autre part, il faut trouver des additifs qui augmentent la r\u00e9sistance du mat\u00e9riau. Dans ce domaine, on utilise encore actuellement du ciment traditionnel, qui fait \u00e0 nouveau passer l&#8217;empreinte \u00e9cologique de l&rsquo;argile \u00ab\u00a0dans la zone rouge\u00a0\u00bb, \u00e9crit l&rsquo;Empa.<\/p>\n<p class=\"bodytext\">En collaboration avec le g\u00e9ologue Raphael Kuhn, Bernard a trouv\u00e9 une approche prometteuse dans l&rsquo;oxyde de magn\u00e9sium. Lors des premi\u00e8res exp\u00e9riences en laboratoire avec des formules d&rsquo;argile, une r\u00e9sistance \u00e0 la compression allant jusqu&rsquo;\u00e0 15 m\u00e9gapascals a \u00e9t\u00e9 atteinte, informe l&rsquo;Empa. L&rsquo;argile additionn\u00e9e de ciment atteint quant \u00e0 elle jusqu&rsquo;\u00e0 20 m\u00e9gapascals.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ellina Bernard, chercheuse \u00e0 l&rsquo;Empa, travaille \u00e0 faire de l&rsquo;argile une alternative durable au b\u00e9ton. Pour cela, elle cherche des additifs et d\u00e9finit des normes pour la composition et la r\u00e9sistance. Le projet est soutenu par le FNS avec une Ambizione-Grant.<\/p>\n","protected":false},"author":2,"featured_media":19824,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pmpro_default_level":"","_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":[22699,743,22357],"tags":[42538,3361,2209,2994,2600,4698,42539,38268,2056,2716],"class_list":["post-65408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-immonews-fr","category-industrie-du-batiment","tag-alternative-fr","tag-baustoff-fr","tag-bauwesen-fr","tag-beton-fr","tag-forschung-fr","tag-fussabdruck-fr","tag-geologischezusammensetzung-fr","tag-lehm-fr","tag-nachhaltigkeit-fr","tag-oekologie-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":[],"lead":"Ellina Bernard, chercheuse \u00e0 l'Empa, travaille \u00e0 faire de l'argile une alternative durable au b\u00e9ton. Pour cela, elle cherche des additifs et d\u00e9finit des normes pour la composition et la r\u00e9sistance. Le projet est soutenu par le FNS avec une Ambizione-Grant.","autor":"ce\/hs","ort":"D\u00fcbendorf ZH","bildunterschrift":"","zusammenfassung":"","bild_im_grid":false,"gallerie":"","newsim":""},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Ellina Bernard, chercheuse \u00e0 l&#039;Empa, travaille \u00e0 faire de l&#039;argile une alternative durable au b\u00e9ton. Pour cela, elle cherche des additifs et d\u00e9finit des normes pour la composition et la r\u00e9sistance. 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