{"id":134897,"date":"2025-06-27T12:57:00","date_gmt":"2025-06-27T10:57:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=134897"},"modified":"2025-06-30T08:39:15","modified_gmt":"2025-06-30T06:39:15","slug":"digitale-modellierung-senkt-co2-in-der-zementproduktion","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/digitale-modellierung-senkt-co2-in-der-zementproduktion\/","title":{"rendered":"La mod\u00e9lisation num\u00e9rique r\u00e9duit le CO2 dans la production de ciment"},"content":{"rendered":"<p class=\"bodytext\">Une \u00e9quipe de recherche du <a href=\"https:\/\/www.psi.ch\/de\" target=\"_blank\" rel=\"noopener\">PSI<\/a> cherche des formules qui r\u00e9duisent la part de clinker, un mat\u00e9riau \u00e0 forte \u00e9mission de CO2, dans le m\u00e9lange de ciment. Des alternatives au clinker sont d\u00e9j\u00e0 utilis\u00e9es, mais ne peuvent couvrir qu&rsquo;une fraction des besoins en ciment.  Les chercheurs cherchent des combinaisons de mat\u00e9riaux disponibles en grandes quantit\u00e9s et permettant une production de ciment de haute qualit\u00e9. Pour cela, ils utilisent une m\u00e9thode de mod\u00e9lisation bas\u00e9e sur l&rsquo;IA. Tout en conservant la qualit\u00e9 des mat\u00e9riaux, ils veulent am\u00e9liorer l&#8217;empreinte carbone des formules, peut on lire dans un <a href=\"https:\/\/www.psi.ch\/de\/news\/medienmitteilungen\/mit-ki-zu-grunem-zement\" target=\"_blank\" rel=\"noopener\">communiqu\u00e9 de presse<\/a>. \u00ab\u00a0Au lieu de tester des milliers de variantes en laboratoire, notre mod\u00e8le g\u00e9n\u00e8re en quelques secondes des propositions de recettes concr\u00e8tes &#8211; comme un livre de cuisine num\u00e9rique pour un ciment respectueux du climat\u00a0\u00bb, explique Romana Boiger, premi\u00e8re auteure et math\u00e9maticienne, cit\u00e9e dans le communiqu\u00e9.<\/p>\n<p class=\"bodytext\">Les chercheurs utilisent pour cela des r\u00e9seaux neuronaux artificiels qui remplacent la mod\u00e9lisation physique, gourmande en temps de calcul. Les mod\u00e8les d&rsquo;IA sont entra\u00een\u00e9s avec des donn\u00e9es connues et apprennent en ajustant la pond\u00e9ration de leurs liens afin de pr\u00e9dire des relations similaires.<\/p>\n<p class=\"bodytext\">Les chercheurs ont entra\u00een\u00e9 leur mod\u00e8le d&rsquo;IA avec le logiciel open source GEMS pour la mod\u00e9lisation thermodynamique. Ils l&rsquo;ont utilis\u00e9 pour calculer la formation de min\u00e9raux et les processus g\u00e9ochimiques dans diff\u00e9rentes formules de ciment et ont combin\u00e9 ces donn\u00e9es avec des donn\u00e9es exp\u00e9rimentales et des mod\u00e8les m\u00e9caniques. Cela leur a permis d&rsquo;estimer la qualit\u00e9 des mat\u00e9riaux de diff\u00e9rentes formules de ciment. En outre, les chercheurs ont calcul\u00e9 les \u00e9missions de CO2 des formules. Le mod\u00e8le d&rsquo;IA a appris \u00e0 partir de ces donn\u00e9es. \u00ab\u00a0En fait, nous recherchons un maximum et un minimum &#8211; nous pouvons en d\u00e9duire directement la formule souhait\u00e9e\u00a0\u00bb, explique Boiger. Pour cela, ils utilisent des algorithmes g\u00e9n\u00e9tiques, une autre m\u00e9thode d&rsquo;IA, pour identifier les recettes qui combinent les deux valeurs cibles.<\/p>\n<p class=\"bodytext\">Les chercheurs ont d\u00e9j\u00e0 d\u00e9couvert des formules de ciment prometteuses, qui doivent encore \u00eatre test\u00e9es en laboratoire pour achever le cycle de d\u00e9veloppement.<br \/>\nL&rsquo;\u00e9tude a \u00e9t\u00e9 r\u00e9alis\u00e9e dans le cadre du <a href=\"https:\/\/www.scene-project.ch\/\" target=\"_blank\" rel=\"noopener\">projet<\/a> interdisciplinaire <a href=\"https:\/\/www.scene-project.ch\/\" target=\"_blank\" rel=\"noopener\">SCENE<\/a> (Swiss Centre of Excellence on Net Zero Emissions).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une \u00e9quipe de recherche de l&rsquo;Institut Paul Scherrer (PSI) cherche des formules de ciment qui r\u00e9duisent la quantit\u00e9 de clinker \u00e0 forte teneur en CO2 dans les m\u00e9langes de ciment. Les chercheurs ont utilis\u00e9 pour cela une m\u00e9thode de mod\u00e9lisation bas\u00e9e sur l&rsquo;intelligence artificielle (IA).<\/p>\n","protected":false},"author":2,"featured_media":114549,"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":[22699,743,22357,8735],"tags":[45816,872,3931,53476,7215,2002],"class_list":["post-134897","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-immonews-fr","category-industrie-du-batiment","category-proptech-fr","tag-co2-reduktion-2-fr","tag-immoinvest-fr","tag-immonews-fr","tag-klimafreundlicher-zement-fr","tag-kuenstliche-intelligenz-fr","tag-news-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":[],"lead":"Une \u00e9quipe de recherche de l'Institut Paul Scherrer (PSI) cherche des formules de ciment qui r\u00e9duisent la quantit\u00e9 de clinker \u00e0 forte teneur en CO2 dans les m\u00e9langes de ciment. Les chercheurs ont utilis\u00e9 pour cela une m\u00e9thode de mod\u00e9lisation bas\u00e9e sur l'intelligence artificielle (IA).","autor":"ce\/ja","ort":"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=\"Une \u00e9quipe de recherche de l&#039;Institut Paul Scherrer (PSI) cherche des formules de ciment qui r\u00e9duisent la quantit\u00e9 de clinker \u00e0 forte teneur en CO2 dans les m\u00e9langes de ciment. 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