{"id":65903,"date":"2023-10-16T16:30:00","date_gmt":"2023-10-16T14:30:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=65903"},"modified":"2023-10-16T11:29:26","modified_gmt":"2023-10-16T09:29:26","slug":"pilotprojekt-misst-potenzial-von-co2-in-recyclingbeton","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/pilotprojekt-misst-potenzial-von-co2-in-recyclingbeton\/","title":{"rendered":"Un projet pilote mesure le potentiel du CO2 dans le b\u00e9ton recycl\u00e9"},"content":{"rendered":"<p class=\"bodytext\">Un <a href=\"http:\/\/www.demoupcarma.ethz.ch\/en\/home\/\" target=\"_blank\" rel=\"noopener\">projet pilote<\/a> men\u00e9 par l&rsquo;\u00c9cole polytechnique f\u00e9d\u00e9rale de Zurich<a href=\"http:\/\/www.ethz.ch\" target=\"_blank\" rel=\"noopener\">(EPFZ<\/a>), en collaboration avec des experts du Laboratoire f\u00e9d\u00e9ral d&rsquo;essai des mat\u00e9riaux et de recherche<a href=\"http:\/\/www.empa.ch\" target=\"_blank\" rel=\"noopener\">(Empa<\/a>), de l&rsquo;Institut de recherche de l&rsquo;eau du domaine des EPF<a href=\"http:\/\/www.eawag.ch\" target=\"_blank\" rel=\"noopener\">(Eawag<\/a>), de l&rsquo;Institut Paul Scherrer<a href=\"http:\/\/www.psi.ch\" target=\"_blank\" rel=\"noopener\">(PSI<\/a>), des entreprises <a href=\"https:\/\/www.kaestligruppe.ch\/home\" target=\"_blank\" rel=\"noopener\">K\u00e4stli Bau<\/a> de Rubigen BE et <a href=\"https:\/\/www.neustark.com\/de\/\" target=\"_blank\" rel=\"noopener\">neustark<\/a> de Berne, ainsi que 18 autres partenaires, a montr\u00e9 que les granulats de b\u00e9ton de d\u00e9molition gaz\u00e9ifi\u00e9s au CO2 permettent d&rsquo;\u00e9conomiser environ 15 pour cent des gaz \u00e0 effet de serre g\u00e9n\u00e9r\u00e9s lors de leur fabrication.<\/p>\n<p class=\"bodytext\">Les nouveaux mat\u00e9riaux de construction enrichis de granulats de b\u00e9ton carbonat\u00e9 permettent d&rsquo;atteindre un total de 10 %. De 5 \u00e0 7 % suppl\u00e9mentaires peuvent \u00eatre obtenus parce que les granul\u00e9s de b\u00e9ton enrichis en CO2 rendent les compos\u00e9s de ciment du b\u00e9ton recycl\u00e9 plus solides que le b\u00e9ton normal. C&rsquo;est ce qu&rsquo;ont r\u00e9v\u00e9l\u00e9 des mesures complexes effectu\u00e9es entre autres par Andreas Leemann du d\u00e9partement <a href=\"https:\/\/www.empa.ch\/de\/web\/s308\/overview\" target=\"_blank\" rel=\"noopener\">Concrete &amp; Asphalt<\/a> de l&rsquo;Empa : \u00ab\u00a0Une phase r\u00e9active qui vient de se former dans le granulat et qui produit une plus grande r\u00e9sistance dans le b\u00e9ton recycl\u00e9. Cela nous a surpris\u00a0\u00bb, a-t-il d\u00e9clar\u00e9 dans un <a href=\"https:\/\/www.admin.ch\/gov\/de\/start\/dokumentation\/medienmitteilungen.msg-id-98159.html\" target=\"_blank\" rel=\"noopener\">communiqu\u00e9 de presse<\/a>.<\/p>\n<p class=\"bodytext\">Le traitement au CO2 de l&rsquo;eau de recyclage compos\u00e9e d&rsquo;eau, de ciment et de sable, qui provient du nettoyage des v\u00e9hicules en b\u00e9ton et des centrales \u00e0 b\u00e9ton, a \u00e9galement montr\u00e9 un potentiel suppl\u00e9mentaire. Un kilogramme de cette eau a permis d&rsquo;absorber 120 grammes de CO2. Les analyses de cycle de vie ont r\u00e9sum\u00e9 que le mat\u00e9riau carbonat\u00e9 peut r\u00e9duire l&rsquo;effet de serre d&rsquo;environ 13 pour cent net par rapport au b\u00e9ton avec ciment traditionnel et sans mat\u00e9riau recycl\u00e9. Pour le b\u00e9ton avec mat\u00e9riaux recycl\u00e9s, l&rsquo;effet est encore de 9 pour cent.<\/p>\n<p class=\"bodytext\">Les responsables du projet pr\u00e9senteront les r\u00e9sultats de la recherche au public lors de l&rsquo;\u00e9v\u00e9nement de cl\u00f4ture. Il aura lieu le 6 d\u00e9cembre \u00e0 l&rsquo;Audi Max de l&rsquo;ETH.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un projet pilote scientifique a d\u00e9montr\u00e9 que le b\u00e9ton peut r\u00e9absorber et stocker durablement jusqu&rsquo;\u00e0 10 pour cent du CO2 g\u00e9n\u00e9r\u00e9 lors de sa fabrication. En outre, le b\u00e9ton enrichi en CO2 est plus solide. Cela permet de r\u00e9duire la quantit\u00e9 de ciment dans le b\u00e9ton recycl\u00e9.<\/p>\n","protected":false},"author":2,"featured_media":65898,"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],"tags":[2209,2994,42670,42671,42672,2837,42673],"class_list":["post-65903","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-immonews-fr","tag-bauwesen-fr","tag-beton-fr","tag-co2-speicherung-fr","tag-forschungsergebnisse-fr","tag-karbonisiertesbetongranulat-fr","tag-pilotprojekt-fr","tag-recyclingbeton-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":[],"lead":"Un projet pilote scientifique a d\u00e9montr\u00e9 que le b\u00e9ton peut r\u00e9absorber et stocker durablement jusqu'\u00e0 10 pour cent du CO2 g\u00e9n\u00e9r\u00e9 lors de sa fabrication. En outre, le b\u00e9ton enrichi en CO2 est plus solide. Cela permet de r\u00e9duire la quantit\u00e9 de ciment dans le b\u00e9ton recycl\u00e9.","autor":"ce\/mm","ort":"Z\u00fcrich\/Villigen AG","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=\"Un projet pilote scientifique a d\u00e9montr\u00e9 que le b\u00e9ton peut r\u00e9absorber et stocker durablement jusqu&#039;\u00e0 10 pour cent du CO2 g\u00e9n\u00e9r\u00e9 lors de sa fabrication. En outre, le b\u00e9ton enrichi en CO2 est plus solide. 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