{"id":110076,"date":"2024-07-16T11:01:30","date_gmt":"2024-07-16T09:01:30","guid":{"rendered":"https:\/\/www.immo-invest.ch\/zement-recycling-ein-gunstiger-und-effizienter-weg\/"},"modified":"2024-07-16T11:17:53","modified_gmt":"2024-07-16T09:17:53","slug":"zement-recycling-ein-gunstiger-und-effizienter-weg","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/zement-recycling-ein-gunstiger-und-effizienter-weg\/","title":{"rendered":"Recyclage du ciment &#8211; une voie \u00e9conomique et efficace"},"content":{"rendered":"\n\n<p class=\"wp-block-paragraph\">L&rsquo;\u00e9tude r\u00e9cemment publi\u00e9e dans la revue PNAS, dirig\u00e9e par l&rsquo;Imperial College London et men\u00e9e en collaboration avec l&rsquo;Empa et l&rsquo;EPFL, montre que le recyclage de la p\u00e2te de ciment provenant du b\u00e9ton de d\u00e9molition est l&rsquo;une des m\u00e9thodes les plus efficaces et les plus \u00e9conomiques pour r\u00e9duire les \u00e9missions de CO2. Le processus de min\u00e9ralisation du CO2, qui consiste \u00e0 absorber le CO2 dans les mat\u00e9riaux de construction tels que le b\u00e9ton, pourrait r\u00e9duire les \u00e9missions de la production de ciment d&rsquo;environ 15%, ce qui repr\u00e9sente 0,8% des \u00e9missions mondiales de gaz \u00e0 effet de serre en 2020.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\"><strong>La brique de ciment recycl\u00e9e est en t\u00eate des technologies<br><\/strong>Parmi les dix technologies de min\u00e9ralisation du CO2 \u00e9tudi\u00e9es, la brique de ciment recycl\u00e9e s&rsquo;av\u00e8re \u00eatre la plus prometteuse. La brique de ciment, un liant pour le b\u00e9ton, provient g\u00e9n\u00e9ralement de constructions d\u00e9molies et peut \u00eatre recycl\u00e9e \u00e0 moindre co\u00fbt. Rupert J. Myers, du d\u00e9partement d&rsquo;ing\u00e9nierie civile et environnementale de l&rsquo;Imperial College, souligne : \u00ab\u00a0Nos r\u00e9sultats montrent que le ciment min\u00e9ralis\u00e9 au CO2 pourrait \u00eatre une technologie cl\u00e9 pour d\u00e9carboniser le secteur de la construction\u00a0\u00bb<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Avantages \u00e9conomiques et durabilit\u00e9<br><\/strong>L&rsquo;\u00e9tude souligne que les technologies \u00e9conomiques de min\u00e9ralisation du CO2 sont jusqu&rsquo;\u00e0 cinq fois moins ch\u00e8res que les m\u00e9thodes traditionnelles de capture et de stockage du carbone. De plus, elles offrent une solution \u00e0 long terme, car les mat\u00e9riaux de construction peuvent stocker le CO2 pendant des si\u00e8cles. Justin D. Driver, du d\u00e9partement de g\u00e9nie chimique de l&rsquo;Imperial College, ajoute : \u00ab\u00a0Bien que la min\u00e9ralisation du CO2 ne soit pas une solution \u00e0 tout faire, elle offre un grand potentiel de r\u00e9duction des \u00e9missions dans le secteur de la construction\u00a0\u00bb<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Limitations et recherches suppl\u00e9mentaires n\u00e9cessaires<br><\/strong>Ellina Bernard, scientifique au laboratoire de b\u00e9ton et d&rsquo;asphalte de l&rsquo;Empa, souligne que la quantit\u00e9 de mat\u00e9riaux disponibles pour la carbonisation est limit\u00e9e, ce qui limite le potentiel de cette technologie. N\u00e9anmoins, les 15% d&rsquo;\u00e9conomies de CO2 possibles sont consid\u00e9rables. La poursuite des recherches pour optimiser et r\u00e9duire les co\u00fbts des technologies de capture et de valorisation du CO2 (CCU) reste essentielle.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Recommandations pour l&rsquo;avenir<br><\/strong>L&rsquo;\u00e9tude formule des recommandations concr\u00e8tes pour les d\u00e9cideurs politiques, les investisseurs et les chercheurs :<\/p>\n\n\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>D\u00e9velopper des strat\u00e9gies de soutien au recyclage du b\u00e9ton de d\u00e9molition : l&rsquo;objectif est de promouvoir le recyclage du b\u00e9ton de d\u00e9molition afin de maximiser la r\u00e9duction des \u00e9missions.<\/li>\n\n\n\n\n\n<li>Se concentrer sur les technologies de min\u00e9ralisation du CO2 comp\u00e9titives : il convient de d\u00e9velopper et de soutenir en priorit\u00e9 les technologies qui se sont av\u00e9r\u00e9es \u00e9conomiques et efficaces pour optimiser l&rsquo;utilisation des ressources.<\/li>\n\n<\/ul>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">Assurer la transparence de la comp\u00e9titivit\u00e9 de ces technologies : pour permettre aux investisseurs de prendre des d\u00e9cisions en toute connaissance de cause, il est n\u00e9cessaire de fournir des informations claires et compr\u00e9hensibles sur les co\u00fbts, les opportunit\u00e9s de march\u00e9 et les possibilit\u00e9s d&rsquo;utilisation des diff\u00e9rentes technologies.<\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>Le recyclage de la p\u00e2te de ciment offre une m\u00e9thode rentable et efficace pour r\u00e9duire les \u00e9missions dans la production de ciment, comme le montre une nouvelle \u00e9tude de l&rsquo;Imperial College London. Avec une r\u00e9duction des \u00e9missions pouvant atteindre 15%, cette technologie ouvre des perspectives prometteuses pour l&rsquo;industrie de la construction.<\/p>\n","protected":false},"author":2,"featured_media":110063,"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":[2209,2994,45816,848,43119],"class_list":["post-110076","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-immonews-fr","category-industrie-du-batiment","tag-bauwesen-fr","tag-beton-fr","tag-co2-reduktion-2-fr","tag-immobilien-fr","tag-mineralisierung-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":[],"lead":"Le recyclage de la p\u00e2te de ciment offre une m\u00e9thode rentable et efficace pour r\u00e9duire les \u00e9missions dans la production de ciment, comme le montre une nouvelle \u00e9tude de l'Imperial College London. Avec une r\u00e9duction des \u00e9missions pouvant atteindre 15%, cette technologie ouvre des perspectives prometteuses pour l'industrie de la construction.","autor":"Quelle: EMPA","ort":"","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=\"Le recyclage de la p\u00e2te de ciment offre une m\u00e9thode rentable et efficace pour r\u00e9duire les \u00e9missions dans la production de ciment, comme le montre une nouvelle \u00e9tude de l&#039;Imperial College London. 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