{"id":25940,"date":"2024-05-31T12:00:22","date_gmt":"2024-05-31T10:00:22","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=25940"},"modified":"2024-05-27T09:28:42","modified_gmt":"2024-05-27T07:28:42","slug":"un-beton-zero-carbone","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/un-beton-zero-carbone\/","title":{"rendered":"Un b\u00e9ton \u00ab\u00a0z\u00e9ro carbone\u00a0\u00bb"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Des chercheurs et ing\u00e9nieurs en environnement ont d\u00e9couvert que l\u2019utilisation de l\u2019olivine dans le ciment pourrait permettre de produire un b\u00e9ton \u00e0 bilan carbone n\u00e9gatif.<\/p>\n<p>Une \u00e9quipe de scientifiques des mat\u00e9riaux et d\u2019ing\u00e9nieurs en environnement a d\u00e9couvert que l\u2019utilisation de l\u2019olivine dans le ciment pourrait permettre de produire un b\u00e9ton \u00e0 bilan carbone n\u00e9gatif.<\/p>\n<p>Le ciment, l\u2019un des principaux contributeurs aux \u00e9missions de CO2<\/p>\n<p>Le bitume, un d\u00e9riv\u00e9 du p\u00e9trole, a par nature une connotation peu \u00e9cologique. Pourtant, nous pouvons avec peu d\u2019efforts et quelquestechniquesinnovantes faire en sorte que son empreinte \u00e9cologique soit la plus r\u00e9duite possible. Ainsi, Derbigum recherche depuis des ann\u00e9es comment rendre aussi bien ses produits liquides que ses membranes de toiture plus \u00e9cologiques.<\/p>\n<p>Des membranes de toiture \u00e9cologiques, c\u2019est bien. Des membranes de toiture qui purifient l\u2019air, c\u2019est encore mieux !<br \/>\nLa quantit\u00e9 de CO2 pr\u00e9sent dans l\u2019air estmille fois plus importante que la quantit\u00e9 de NOx. L\u2019olivine doit uniquement \u00eatre broy\u00e9e dans la taille voulue pour pouvoir \u00eatre utilis\u00e9e dans le<br \/>\nprocessus de fabrication. Pour obtenir le dioxyde de titanium, il y a deux m\u00e9thodes de production possibles : l\u2019une utilise l\u2019acide sulfurique, l\u2019autre utilise du gaz chlorique et des cokes. Ces deux m\u00e9thodes comportent beaucoup plus de risques pour l\u2019environnement que le simple broyage de l\u2019olivine\u2026<br \/>\nEn plus, les effets \u00e0 long terme sur l\u2019environnement caus\u00e9s par l\u2019\u00e9rosion du surfa\u00e7age en dioxyde de titanium, ne sont pas encore suffisamment connus.<\/p>\n<p>La purification de l\u2019air lui\u2010m\u00eame se fait quand il pleut. Le CO2 est pour ainsi dire \u00ab lav\u00e9 du ciel \u00bb. D\u00e8s que celui\u2010ci entre en contact, par l\u2019interm\u00e9diaire de l\u2019eau de pluie, avec l\u2019olivine, une r\u00e9action chimique a lieu, transformant le CO2 en deux produits sans danger pour l\u2019environnement : le carbonate de magn\u00e9sium et le sable. Par m\u00b2 de membrane de toiture, se trouve 1,4 kg de granules d\u2019olivine. M\u00eame en tenant compte de la perte naturelle d\u2019olivine par \u00e9rosion, l\u2019olivine sera encore toujours active quand la membrane de toiture bitumineuse arrive, elle, en fin de vie.<\/p>\n<p>Ce min\u00e9ral, parmi les plus courants sur Terre, pourrait remplacer le clinker, un liant du ciment obtenu en chauffant du calcaire. De quoi r\u00e9duire le co\u00fbt environnemental du ciment, l\u2019un des principaux contributeurs aux \u00e9missions de dioxyde de carbone (CO2).<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"25945\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/un-beton-zero-carbone\/beton\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/beton.jpg?fit=1024%2C1024&amp;ssl=1\" data-orig-size=\"1024,1024\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"b\u00e9ton\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/beton.jpg?fit=800%2C800&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/beton.jpg?resize=1024%2C1024&#038;ssl=1\" alt=\"\" width=\"1024\" height=\"1024\" class=\"alignnone size-full wp-image-25945\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/beton.jpg?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/beton.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/beton.jpg?resize=800%2C800&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/beton.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/beton.jpg?resize=144%2C144&amp;ssl=1 144w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>sources : <a href=\"https:\/\/www.sciencesetavenir.fr\/fondamental\/materiaux\/vers-un-beton-zero-carbone-grace-a-l-un-des-mineraux-les-plus-courants-sur-terre_178405\" rel=\"noopener\" target=\"_blank\">https:\/\/www.sciencesetavenir.fr\/<\/a> \/ <a href=\"https:\/\/press.derbigum.com\/docs\/fr\/Derbigum-Derbicolor_Olivine_FR.pdf\" rel=\"noopener\" target=\"_blank\">https:\/\/press.derbigum.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"25940\">(213)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Des chercheurs et ing\u00e9nieurs en environnement ont d\u00e9couvert que l\u2019utilisation de l\u2019olivine dans le ciment pourrait permettre de produire un&#8230;<\/p>\n","protected":false},"author":1,"featured_media":25946,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[26],"tags":[4533,6719,8125],"class_list":["post-25940","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions","tag-beton","tag-olivine","tag-zero-carbone","wpcat-26-id"],"jetpack_shortlink":"https:\/\/wp.me\/p631RN-6Ko","jetpack-related-posts":[{"id":12632,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-ciment-trop-polluant-deux-francais-inventent-une-argile-aussi-solide-que-du-beton\/","url_meta":{"origin":25940,"position":0},"title":"Le ciment, trop polluant ? Deux Fran\u00e7ais inventent une argile aussi solide que du b\u00e9ton","author":"Admin","date":"27 juin 2016","format":false,"excerpt":"Alors que 100 tonnes de ciment sont produites chaque seconde sur la plan\u00e8te, l'ing\u00e9nieur David Hoffmann et le PDG de l'entreprise vend\u00e9enne Argilus Julien Blanchard ont mis au point un proc\u00e9d\u00e9 qui permettra de produire, d\u00e8s 2017, un mat\u00e9riau de construction au bilan carbone tr\u00e8s all\u00e9g\u00e9. Explications. Ils ont trouv\u00e9\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/argile-solide-comme-beton.jpg?fit=600%2C600&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/argile-solide-comme-beton.jpg?fit=600%2C600&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/argile-solide-comme-beton.jpg?fit=600%2C600&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":10814,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-chercheurs-creent-un-beton-revolutionnaire-capable-de-faire-fondre-la-neige\/","url_meta":{"origin":25940,"position":1},"title":"Des chercheurs cr\u00e9ent un b\u00e9ton r\u00e9volutionnaire capable de faire fondre la neige","author":"Admin","date":"30 janvier 2016","format":false,"excerpt":"D\u00e9velopp\u00e9e par des chercheurs de l'universit\u00e9 am\u00e9ricaine du Nebraska, cette nouvelle forme de b\u00e9ton chauffant pourrait permettre de s\u00e9curiser certaines zones routi\u00e8res r\u00e9guli\u00e8rement expos\u00e9e au gel et \u00e0 la neige. Une forme innovante de b\u00e9ton bitumineux a \u00e9t\u00e9 mise au point par une \u00e9quipe de chercheurs de l'universit\u00e9 am\u00e9ricaine du\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/route-chauffante-anti-neige.jpg?fit=750%2C387&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/route-chauffante-anti-neige.jpg?fit=750%2C387&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/route-chauffante-anti-neige.jpg?fit=750%2C387&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/route-chauffante-anti-neige.jpg?fit=750%2C387&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":29850,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-batiments-vivants-capables-dabsorber-le-co%e2%82%82-et-de-se-renforcer-avec-le-temps\/","url_meta":{"origin":25940,"position":2},"title":"Des b\u00e2timents vivants capables d\u2019absorber le CO\u2082 et de se renforcer avec le temps","author":"Admin","date":"1 septembre 2026","format":false,"excerpt":"Et si les b\u00e2timents de demain ne se contentaient plus de r\u00e9duire leurs \u00e9missions de carbone, mais devenaient eux-m\u00eames capables de retirer du CO\u2082 de l\u2019atmosph\u00e8re ? \u00c0 l\u2019\u00c9cole polytechnique f\u00e9d\u00e9rale de Zurich, l\u2019ETH Zurich, des chercheurs ont mis au point un mat\u00e9riau vivant contenant des cyanobact\u00e9ries photosynth\u00e9tiques. Imprimable en\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/algues-bleu-vert__Facade-batiment-2.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/algues-bleu-vert__Facade-batiment-2.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/algues-bleu-vert__Facade-batiment-2.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/algues-bleu-vert__Facade-batiment-2.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/algues-bleu-vert__Facade-batiment-2.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":18701,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-premiere-caserne-militaire-en-beton-imprimee-en-3d-au-monde\/","url_meta":{"origin":25940,"position":3},"title":"La premi\u00e8re caserne militaire en b\u00e9ton imprim\u00e9e en 3D au monde","author":"Admin","date":"26 avril 2019","format":false,"excerpt":"Le MCSC s'associe aux Marines pour construire la premi\u00e8re caserne en b\u00e9ton imprim\u00e9e en 3D au monde ! Les Marines du 1er corps exp\u00e9ditionnaire marin ont appris \u00e0 utiliser la plus grande imprimante 3D en b\u00e9ton au monde en construisant une caserne de 152m2 au centre de recherche et de\u2026","rel":"","context":"Dans &quot;Monde Futur&quot;","block_context":{"text":"Monde Futur","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/monde-futur\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/caserne-militaire-imprimee-3d-3.jpg?fit=633%2C422&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/caserne-militaire-imprimee-3d-3.jpg?fit=633%2C422&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/caserne-militaire-imprimee-3d-3.jpg?fit=633%2C422&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":24873,"url":"https:\/\/www.laterredufutur.com\/accueil\/ces-bacteries-peuvent-transformer-le-co2-en-un-bioplastique-utile\/","url_meta":{"origin":25940,"position":4},"title":"Ces bact\u00e9ries peuvent transformer le CO2 en un bioplastique utile","author":"Admin","date":"13 avril 2023","format":false,"excerpt":"Une bact\u00e9rie bien connue pourrait transformer le dioxyde de carbone de l'air en un bioplastique utile, s'attaquant \u00e0 deux probl\u00e8mes mondiaux d'un seul coup, \u00e0 l'aide d'un syst\u00e8me prototype con\u00e7u par une \u00e9quipe d'ing\u00e9nieurs chimistes en Cor\u00e9e. Les bact\u00e9ries grignotant du plastique capables de d\u00e9composer les d\u00e9chets plastiques en quelques\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/04\/plastiques.jpg?fit=960%2C640&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/04\/plastiques.jpg?fit=960%2C640&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/04\/plastiques.jpg?fit=960%2C640&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/04\/plastiques.jpg?fit=960%2C640&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":25966,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-equipe-americaine-atteint-le-reve-ecologique-ultime-transformer-le-co2-en-carburant\/","url_meta":{"origin":25940,"position":5},"title":"Une \u00e9quipe am\u00e9ricaine atteint le r\u00eave \u00e9cologique ultime : transformer le CO2 en carburant","author":"Admin","date":"10 juin 2024","format":false,"excerpt":"Avez-vous d\u00e9j\u00e0 imagin\u00e9 un monde o\u00f9 l\u2019exc\u00e8s d\u2019\u00e9nergie renouvelable serait utilis\u00e9 pour transformer le CO2 en produits utiles comme des carburants ? Gr\u00e2ce \u00e0 une perc\u00e9e r\u00e9alis\u00e9e par des chercheurs du Lawrence Berkeley National Laboratory (Berkeley Lab) et de l\u2019Universit\u00e9 de Californie \u00e0 Berkeley, ce sc\u00e9nario pourrait devenir r\u00e9alit\u00e9. D\u00e9couvrons\u2026","rel":"","context":"Dans &quot;Ecologie&quot;","block_context":{"text":"Ecologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/ecologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/transformer-le-co2-en-carburant.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/transformer-le-co2-en-carburant.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/transformer-le-co2-en-carburant.jpg?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/transformer-le-co2-en-carburant.jpg?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/Olivine.jpg?fit=612%2C408&ssl=1","_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=25940"}],"version-history":[{"count":5,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25940\/revisions"}],"predecessor-version":[{"id":25947,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25940\/revisions\/25947"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/25946"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=25940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=25940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=25940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}