{"id":12916,"date":"2024-08-15T11:52:53","date_gmt":"2024-08-15T09:52:53","guid":{"rendered":"https:\/\/jansametal.com\/article-sur-les-structures-pour-lindustrie\/"},"modified":"2026-03-06T00:25:02","modified_gmt":"2026-03-05T23:25:02","slug":"article-sur-les-structures-pour-lindustrie","status":"publish","type":"post","link":"https:\/\/jansametal.com\/fr\/article-sur-les-structures-pour-lindustrie\/","title":{"rendered":"Acier ou b\u00e9ton : quel mat\u00e9riau g\u00e9n\u00e8re le moins de CO\u2082 lors de la construction d&rsquo;un b\u00e2timent industriel ?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">En mati\u00e8re de durabilit\u00e9 dans la construction, le d\u00e9bat entre l&rsquo;acier et le b\u00e9ton reste essentiel. Pour le comprendre objectivement, nous avons analys\u00e9 les donn\u00e9es de l&rsquo;<em>Agence de protection de l&rsquo;environnement (EPA)<\/em> sur les \u00e9missions de CO\u2082 des deux mat\u00e9riaux, et appliqu\u00e9 ces valeurs \u00e0 un cas r\u00e9el : un b\u00e2timent industriel de 600 m\u00b2 avec une distance de transport moyenne de 20 km jusqu&rsquo;au site de construction. <\/p>\n\n<p class=\"wp-block-paragraph\">\ud83d\udcca <strong>Donn\u00e9es sur les \u00e9missions de base par tonne de mat\u00e9riau<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u00e9ton :<\/strong> 265 kg CO\u2082 \/ tonne<\/li>\n\n\n\n<li><strong>Acier :<\/strong> 694 kg CO\u2082 \/ tonne<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">\u00c0 premi\u00e8re vue, l&rsquo;acier semble plus polluant. Mais la comparaison change du tout au tout si l&rsquo;on tient compte de la <strong>quantit\u00e9 de mat\u00e9riaux n\u00e9cessaires<\/strong> et du <strong>transport jusqu&rsquo;au chantier.<\/strong> <\/p>\n\n<div class=\"wp-block-uagb-image uagb-block-e98c9f0f wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img decoding=\"async\" srcset=\"https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/transport_vigas-1024x656.jpg ,https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/transport_vigas-scaled.jpg 780w, https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/transport_vigas-scaled.jpg 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/transport_vigas-1024x656.jpg\" alt=\"\" class=\"uag-image-11215\" width=\"5280\" height=\"3384\" title=\"transport_vigas\" loading=\"lazy\" role=\"img\"><\/figure><\/div>\n\n<div class=\"wp-block-uagb-container uagb-block-c8780657 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Exemple pratique : une poutre dans un b\u00e2timent industriel<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\">Poutre en b\u00e9ton (20 m de long)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Volume : 4 m\u00b3<\/li>\n\n\n\n<li>Densit\u00e9 : 2,3 t\/m\u00b3<\/li>\n\n\n\n<li>Poids total : 9,2 tonnes<\/li>\n\n\n\n<li>\u00c9missions de CO\u2082 : 9,2 t \u00d7 265 kg CO\u2082\/t = <strong>2 438 kg CO\u2082<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\">Poutre en acier (21 m, profil IPE)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9missions de CO\u2082 : 1,3 t \u00d7 694 kg CO\u2082\/t = <strong>902 kg CO\u2082<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Poids : 1,3 tonne<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Transport des mat\u00e9riaux<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un camion \u00e9met environ <strong>2,5 kg de CO\u2082 par litre de carburant<\/strong> et consomme environ <strong>40 litres aux 100 km.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Acier :<\/strong><br\/>1 camion \u00d7 20 km \u00d7 2,5 kg CO\u2082\/l \u00d7 (40 l \/ 100 km) = <strong>100 kg CO\u2082<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u00e9ton :<\/strong><br\/>12 camions \u00d7 20 km \u00d7 2,5 kg CO\u2082\/l \u00d7 (40 l \/ 100 km) = <strong>1 200 kg CO\u2082<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>\u00c9missions totales de CO\u2082 dans la construction des b\u00e2timents<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Mat\u00e9riau<\/th><th>\u00c9missions de l&rsquo;industrie manufacturi\u00e8re<\/th><th>\u00c9missions des transports<\/th><th>Total CO\u2082<\/th><\/tr><\/thead><tbody><tr><td>B\u00e9ton<\/td><td>2 438 kg<\/td><td>1 200 kg<\/td><td><strong>3,638 kg<\/strong><\/td><\/tr><tr><td>Acier<\/td><td>902 kg<\/td><td>100 kg<\/td><td><strong>1,002 kg<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<h3 class=\"wp-block-heading\" style=\"margin-top:40px\"><strong>Conclusion<\/strong><\/h3>\n\n<p class=\"wp-block-paragraph\">Bien que l&rsquo;acier produise <strong>plus d&rsquo;\u00e9missions par tonne produite<\/strong>, son <strong>poids structurel plus l\u00e9ger<\/strong> et son <strong>efficacit\u00e9 en mati\u00e8re de transport en<\/strong> font une option <strong>plus durable pour le site dans son ensemble.<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Dans le cas analys\u00e9, <strong>un b\u00e2timent industriel m\u00e9tallique g\u00e9n\u00e8re 72 % de CO\u2082 en moins<\/strong> que son \u00e9quivalent en b\u00e9ton (1 002 kg contre 3 638 kg de CO\u2082).<\/p>\n\n<p class=\"wp-block-paragraph\">En outre, l&rsquo;acier offre d&rsquo;autres avantages environnementaux :<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Pratiquement 100 % <strong>r\u00e9utilisable et recyclable<\/strong>.<\/li>\n\n\n\n<li>R\u00e9duit le temps de construction et les d\u00e9chets g\u00e9n\u00e9r\u00e9s.<\/li>\n\n\n\n<li>Il permet des conceptions plus l\u00e9g\u00e8res et plus efficaces.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>En bref<\/strong><\/h3>\n\n<p class=\"wp-block-paragraph\">L&rsquo;acier n&rsquo;apporte pas seulement la r\u00e9sistance et la pr\u00e9cision structurelles, mais contribue \u00e9galement \u00e0 une construction <strong>plus propre, plus rapide et plus durable<\/strong>.<br\/>Dans les projets industriels, le choix de la charpente m\u00e9tallique n&rsquo;est pas seulement une d\u00e9cision technique, mais aussi <strong>un engagement \u00e0 r\u00e9duire l&#8217;empreinte carbone r\u00e9elle du b\u00e2timent.<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>En mati\u00e8re de durabilit\u00e9 dans la construction, le d\u00e9bat entre l&rsquo;acier et le b\u00e9ton reste essentiel. Pour le comprendre objectivement, nous avons analys\u00e9 les donn\u00e9es de l&rsquo;Agence de protection de l&rsquo;environnement (EPA) sur les \u00e9missions de CO\u2082 des deux mat\u00e9riaux, et appliqu\u00e9 ces valeurs \u00e0 un cas r\u00e9el : un b\u00e2timent industriel de 600 m\u00b2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11226,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[88,86],"tags":[],"class_list":["post-12916","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-industriels"],"spectra_custom_meta":{"_pingme":["1"],"_encloseme":["1"],"rank_math_internal_links_processed":["1"],"_last_translation_edit_mode":["translation-editor"],"_wpml_media_duplicate":["1"],"_wpml_media_featured":["1"],"adv-header-id-meta":[""],"footer-sml-layout":[""],"stick-header-meta":[""],"theme-transparent-header-meta":[""],"ast-site-content-layout":["default"],"_top_nav_excluded":[""],"_cms_nav_minihome":[""],"_thumbnail_id":["11226"],"_wpml_word_count":["419"],"_uag_css_file_name":["uag-css-12916.css"],"_uag_js_file_name":["uag-js-12916.js"],"rank_math_primary_category":["42"]},"uagb_featured_image_src":{"full":["https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/Concretevssteel.png",1024,1024,false],"thumbnail":["https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/Concretevssteel-150x150.png",150,150,true],"medium":["https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/Concretevssteel-300x300.png",300,300,true],"medium_large":["https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/Concretevssteel-768x768.png",768,768,true],"large":["https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/Concretevssteel.png",1024,1024,false],"1536x1536":["https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/Concretevssteel.png",1024,1024,false],"2048x2048":["https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/Concretevssteel.png",1024,1024,false],"wpca-thumb":["https:\/\/jansametal.com\/wp-content\/uploads\/2024\/08\/Concretevssteel-220x150.png",220,150,true]},"uagb_author_info":{"display_name":"admin","author_link":"https:\/\/jansametal.com\/fr\/author\/anjo\/"},"uagb_comment_info":0,"uagb_excerpt":"En mati\u00e8re de durabilit\u00e9 dans la construction, le d\u00e9bat entre l&rsquo;acier et le b\u00e9ton reste essentiel. Pour le comprendre objectivement, nous avons analys\u00e9 les donn\u00e9es de l&rsquo;Agence de protection de l&rsquo;environnement (EPA) sur les \u00e9missions de CO\u2082 des deux mat\u00e9riaux, et appliqu\u00e9 ces valeurs \u00e0 un cas r\u00e9el : un b\u00e2timent industriel de 600 m\u00b2\u2026","_links":{"self":[{"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/posts\/12916","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/comments?post=12916"}],"version-history":[{"count":1,"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/posts\/12916\/revisions"}],"predecessor-version":[{"id":12917,"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/posts\/12916\/revisions\/12917"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/media\/11226"}],"wp:attachment":[{"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/media?parent=12916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/categories?post=12916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jansametal.com\/fr\/wp-json\/wp\/v2\/tags?post=12916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}