{"id":67370,"date":"2023-11-15T17:30:00","date_gmt":"2023-11-15T16:30:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=67370"},"modified":"2023-11-15T14:40:46","modified_gmt":"2023-11-15T13:40:46","slug":"eth-projekt-will-ultra-gruenen-beton-weltweit-zugaenglich-machen","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/eth-projekt-will-ultra-gruenen-beton-weltweit-zugaenglich-machen\/","title":{"rendered":"Un projet de l&rsquo;ETH vise \u00e0 rendre le b\u00e9ton ultra-vert accessible au monde entier"},"content":{"rendered":"<p class=\"bodytext\">Avec son projet Ultra Green Concrete, l&rsquo;<a href=\"http:\/\/www.ethz.ch\" target=\"_blank\" rel=\"noopener\">EPFZ<\/a> souhaite que le b\u00e9ton \u00e0 hautes performances et \u00e0 faibles \u00e9missions de CO2 devienne accessible \u00e0 tous. Franco Zunino, Senior Scientist \u00e0 l&rsquo;<a href=\"https:\/\/ifb.ethz.ch\/\" target=\"_blank\" rel=\"noopener\">Institut des mat\u00e9riaux de construction de l&rsquo;EPFZ<\/a>, et ses coll\u00e8gues reprennent une approche de l&rsquo;<a href=\"http:\/\/www.epfl.ch\" target=\"_blank\" rel=\"noopener\">\u00c9cole polytechnique f\u00e9d\u00e9rale de Lausanne<\/a>: Ils y ont trouv\u00e9 une formulation de ciment (LC3) de 50 pour cent de clinker avec une combinaison d&rsquo;argile cuite et de calcaire, qui permet d&rsquo;\u00e9conomiser environ 40 pour cent de CO2 par rapport au ciment traditionnel. Zunino a particip\u00e9 \u00e0 ce d\u00e9veloppement.<\/p>\n<p class=\"bodytext\">Dans le cadre du projet de l&rsquo;ETH, il mise d\u00e9sormais sur une deuxi\u00e8me strat\u00e9gie pour \u00e9conomiser du CO2 : la r\u00e9duction de la proportion de ciment dans le b\u00e9ton. Cette double strat\u00e9gie offre une flexibilit\u00e9 permettant d&rsquo;adapter les compositions de b\u00e9ton \u00e0 faible teneur en carbone aux march\u00e9s individuels, explique l&rsquo;EPF dans un <a href=\"https:\/\/ethz.ch\/de\/news-und-veranstaltungen\/eth-news\/news\/2023\/11\/gruener-wandel-in-einer-grauen-industrie.html\" target=\"_blank\" rel=\"noopener\">communiqu\u00e9<\/a>. \u00ab\u00a0L&rsquo;id\u00e9al serait de mettre en \u0153uvre les deux en m\u00eame temps\u00a0\u00bb, selon Zunino. Mais cela est difficile sur certains march\u00e9s, \u00ab\u00a0car il faut mettre en place des capacit\u00e9s de production et des infrastructures. N\u00e9anmoins, il est possible de r\u00e9aliser au moins l&rsquo;un d&rsquo;entre eux tout en \u00e9conomisant du CO2\u00a0\u00bb<\/p>\n<p class=\"bodytext\">Selon les calculs de Zunino et de son \u00e9quipe, les \u00e9missions de CO2 du b\u00e9ton ultra-vert peuvent \u00eatre r\u00e9duites de 300 \u00e0 environ 80 \u00e0 100 kilogrammes par m\u00e8tre cube, sans compromettre les performances du mat\u00e9riau. Selon lui, les pays industrialis\u00e9s n&rsquo;ont donc aucune excuse pour ne pas passer imm\u00e9diatement \u00e0 ce nouveau mat\u00e9riau de construction plus durable.<\/p>\n<p class=\"bodytext\">De plus, le ciment \u00e0 faible \u00e9mission de carbone est plus durable et moins cher que le ciment traditionnel. Il est d\u00e9j\u00e0 produit dans sept cimenteries \u00e0 travers le monde. Zunino est convaincu que le LC3 sera le type de ciment le plus r\u00e9pandu dans le monde d&rsquo;ici dix ans.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Die Eidgen\u00f6ssische Technische Hochschule Z\u00fcrich (ETH) hat einen ultra-gr\u00fcnen, kosteng\u00fcnstigen Beton entwickelt, der auf CO2-armen Zement und eine Neuformulierung des Betons setzt. Damit gelingt die Reduktion der Emissionen um bis zu 75 Prozent. Die Produktion des Zements l\u00e4uft bereits weltweit.<\/p>\n","protected":false},"author":2,"featured_media":67365,"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":[2209,2995,872,3931,2002],"class_list":["post-67370","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-immonews-fr","category-industrie-du-batiment","tag-bauwesen-fr","tag-eth-fr","tag-immoinvest-fr","tag-immonews-fr","tag-news-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":[],"lead":"Z\u00fcrich - Die Eidgen\u00f6ssische Technische Hochschule Z\u00fcrich (ETH) hat einen ultra-gr\u00fcnen, kosteng\u00fcnstigen Beton entwickelt, der auf CO2-armen Zement und eine Neuformulierung des Betons setzt. Damit gelingt die Reduktion der Emissionen um bis zu 75 Prozent. Die Produktion des Zements l\u00e4uft bereits weltweit.","autor":"ce\/mm","ort":"Z\u00fcrich","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=\"Die Eidgen\u00f6ssische Technische Hochschule Z\u00fcrich (ETH) hat einen ultra-gr\u00fcnen, kosteng\u00fcnstigen Beton entwickelt, der auf CO2-armen Zement und eine Neuformulierung des Betons setzt. Damit gelingt die Reduktion der Emissionen um bis zu 75 Prozent. 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