{"id":124099,"date":"2025-01-21T11:00:00","date_gmt":"2025-01-21T10:00:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=124099"},"modified":"2025-01-21T17:17:19","modified_gmt":"2025-01-21T16:17:19","slug":"beton-als-co2-speicher","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/beton-als-co2-speicher\/","title":{"rendered":"Le b\u00e9ton comme r\u00e9servoir de CO\u2082"},"content":{"rendered":"\n\n<p class=\"wp-block-paragraph\">La r\u00e9duction des \u00e9missions de gaz \u00e0 effet de serre ne suffit pas \u00e0 elle seule \u00e0 freiner le changement climatique. Il est tout aussi important d&rsquo;\u00e9liminer activement de l&rsquo;atmosph\u00e8re le CO\u2082 d\u00e9j\u00e0 \u00e9mis. Des chercheurs de l&rsquo;Empa ont calcul\u00e9 que le stockage cibl\u00e9 du CO\u2082 dans le b\u00e9ton pourrait permettre de capturer jusqu&rsquo;\u00e0 dix milliards de tonnes de carbone par an. Ce processus pourrait aider \u00e0 long terme \u00e0 ramener le niveau de CO\u2082 dans l&rsquo;atmosph\u00e8re \u00e0 la valeur cible de 350 ppm.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">Le concept est bas\u00e9 sur la transformation du CO\u2082 en compos\u00e9s carbon\u00e9s solides, utilis\u00e9s comme agr\u00e9gats de b\u00e9ton. Outre le b\u00e9ton, d&rsquo;autres mat\u00e9riaux de construction tels que l&rsquo;asphalte ou les plastiques pourraient \u00e9galement contribuer au stockage. Le d\u00e9fi consiste \u00e0 incorporer efficacement et rapidement de grandes quantit\u00e9s de carbone dans ces mat\u00e9riaux sans en d\u00e9grader les propri\u00e9t\u00e9s.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Le carbure de silicium, une technologie cl\u00e9<br><\/strong>Une approche prometteuse consiste \u00e0 produire du carbure de silicium comme agr\u00e9gat de b\u00e9ton. Ce compos\u00e9 peut fixer le carbone de mani\u00e8re quasi permanente tout en am\u00e9liorant les propri\u00e9t\u00e9s m\u00e9caniques du b\u00e9ton. Cependant, la production de carbure de silicium est tr\u00e8s gourmande en \u00e9nergie, c&rsquo;est pourquoi l&rsquo;utilisation compl\u00e8te de cette technologie n&rsquo;est r\u00e9aliste qu&rsquo;apr\u00e8s la transition \u00e9nerg\u00e9tique.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">Sans l&rsquo;utilisation du carbure de silicium, il faudrait plus de 200 ans pour \u00e9liminer l&rsquo;exc\u00e8s de CO\u2082 de l&rsquo;atmosph\u00e8re. Cependant, une combinaison de carbone poreux et de carbure de silicium permettrait d&rsquo;acc\u00e9l\u00e9rer consid\u00e9rablement ce processus.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nouvelles voies pour une \u00e9conomie captant le CO\u2082<br><\/strong>L&rsquo;initiative de recherche \u00ab\u00a0Mining the Atmosphere\u00a0\u00bb a pour objectif de ne pas seulement r\u00e9duire le CO\u2082, mais de l&rsquo;utiliser comme une mati\u00e8re premi\u00e8re pr\u00e9cieuse. Outre le stockage dans des mat\u00e9riaux de construction, le carbone peut \u00e9galement \u00eatre utilis\u00e9 pour la fabrication de polym\u00e8res, de fibres de carbone ou de graph\u00e8ne.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">Toutefois, des avanc\u00e9es technologiques ainsi que des incitations \u00e9conomiques et r\u00e9glementaires sont n\u00e9cessaires pour r\u00e9ussir cette mise en \u0153uvre. Les chercheurs soulignent qu&rsquo;une combinaison de r\u00e9duction du CO\u2082 et d&rsquo;\u00e9limination active est n\u00e9cessaire pour att\u00e9nuer le changement climatique \u00e0 long terme.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;utilisation du b\u00e9ton comme r\u00e9servoir de carbone permettrait de contribuer de mani\u00e8re d\u00e9cisive \u00e0 la stabilisation du climat. Une solution durable pour l&rsquo;avenir de l&rsquo;industrie de la construction.<\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;initiative de recherche \u00ab\u00a0Mining the Atmosphere\u00a0\u00bb montre que le CO\u2082 exc\u00e9dentaire de l&rsquo;atmosph\u00e8re peut \u00eatre stock\u00e9 de mani\u00e8re permanente dans des mat\u00e9riaux de construction tels que le b\u00e9ton. Avec une capacit\u00e9 de stockage pouvant atteindre dix milliards de tonnes de carbone par an, cette approche pourrait contribuer \u00e0 r\u00e9duire le niveau de CO\u2082 \u00e0 un niveau compatible avec le climat.<\/p>\n","protected":false},"author":2,"featured_media":124092,"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":[4192,2994,42670,2600,872,3931,1822,2002],"class_list":["post-124099","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-immonews-fr","category-industrie-du-batiment","tag-baumaterialien-fr","tag-beton-fr","tag-co2-speicherung-fr","tag-forschung-fr","tag-immoinvest-fr","tag-immonews-fr","tag-klimaschutz-fr","tag-news-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":[],"lead":"L'initiative de recherche \"Mining the Atmosphere\" montre que le CO\u2082 exc\u00e9dentaire de l'atmosph\u00e8re peut \u00eatre stock\u00e9 de mani\u00e8re permanente dans des mat\u00e9riaux de construction tels que le b\u00e9ton. Avec une capacit\u00e9 de stockage pouvant atteindre dix milliards de tonnes de carbone par an, cette approche pourrait contribuer \u00e0 r\u00e9duire le niveau de CO\u2082 \u00e0 un niveau compatible avec le climat.","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=\"L&#039;initiative de recherche &quot;Mining the Atmosphere&quot; montre que le CO\u2082 exc\u00e9dentaire de l&#039;atmosph\u00e8re peut \u00eatre stock\u00e9 de mani\u00e8re permanente dans des mat\u00e9riaux de construction tels que le b\u00e9ton. Avec une capacit\u00e9 de stockage pouvant atteindre dix milliards de tonnes de carbone par an, cette approche pourrait contribuer \u00e0 r\u00e9duire le niveau de CO\u2082 \u00e0 un niveau compatible avec le climat.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"immovestuser\"\/>\n\t<meta name=\"google-site-verification\" content=\"fHJKvgWpZCR2zVBHWfkQeFXC11qieUSff0HGNYfuyLA\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.immo-invest.ch\/fr\/beton-als-co2-speicher\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"fr_FR\" \/>\n\t\t<meta property=\"og:site_name\" content=\"immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien - Die\u00a0Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Le b\u00e9ton comme r\u00e9servoir de CO\u2082 - immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta property=\"og:description\" content=\"L&#039;initiative de recherche &quot;Mining the Atmosphere&quot; montre que le CO\u2082 exc\u00e9dentaire de l&#039;atmosph\u00e8re peut \u00eatre stock\u00e9 de mani\u00e8re permanente dans des mat\u00e9riaux de construction tels que le b\u00e9ton. Avec une capacit\u00e9 de stockage pouvant atteindre dix milliards de tonnes de carbone par an, cette approche pourrait contribuer \u00e0 r\u00e9duire le niveau de CO\u2082 \u00e0 un niveau compatible avec le climat.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.immo-invest.ch\/fr\/beton-als-co2-speicher\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/www.immo-invest.ch\/wp-content\/uploads\/2025\/01\/AdobeStock_190729163-stopper-e1737449949686.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/www.immo-invest.ch\/wp-content\/uploads\/2025\/01\/AdobeStock_190729163-stopper-e1737449949686.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"870\" \/>\n\t\t<meta property=\"og:image:height\" content=\"489\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2025-01-21T10:00:00+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2025-01-21T16:17:19+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/people\/Immoinvest\/100077962920504\/\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:site\" content=\"@i\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Le b\u00e9ton comme r\u00e9servoir de CO\u2082 - immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta name=\"twitter:description\" content=\"L&#039;initiative de recherche &quot;Mining the Atmosphere&quot; montre que le CO\u2082 exc\u00e9dentaire de l&#039;atmosph\u00e8re peut \u00eatre stock\u00e9 de mani\u00e8re permanente dans des mat\u00e9riaux de construction tels que le b\u00e9ton. 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