{"id":107292,"date":"2022-04-26T06:22:43","date_gmt":"2022-04-26T04:22:43","guid":{"rendered":"https:\/\/batijournal.com\/?p=107292"},"modified":"2022-04-26T06:22:43","modified_gmt":"2022-04-26T04:22:43","slug":"xella-recycle-les-chutes-de-production","status":"publish","type":"post","link":"https:\/\/batijournal.com\/index.php\/xella-recycle-les-chutes-de-production\/107292\/","title":{"rendered":"Xella recycle les chutes de production"},"content":{"rendered":"<p>lus grand producteur de b\u00e9ton cellulaire et de pierre silico-calcaire, le groupe Xella a \u00e0 c\u0153ur d\u2019am\u00e9liorer sans cesse la durabilit\u00e9 de ses solutions constructives et de contribuer \u00e0 r\u00e9duire son empreinte carbone dans l\u2019industrie de la construction. Son site de production de Saint-Savin, situ\u00e9 dans la r\u00e9gion de Lyon, fabrique et commercialise les blocs en b\u00e9ton cellulaire Ytong et Siporex. Ce mat\u00e9riau 100 % min\u00e9ral est compos\u00e9 de ressources naturelles locales : eau, sable (60 %), chaux (15 %), ciment (15 %) et anhydrite (10 %), sa production est peu \u00e9nergivore car elle se limite \u00e0 la mise en pression des autoclaves. Dans le cadre de son plan de modernisation 2020-2022, Xella a investi 1,1 million d\u2019euros dans la cha\u00eene de production de Saint-Savin. L\u2019objectif est de limiter la consommation des ressources et leurs co\u00fbts, et recycler les d\u00e9chets issus de la production en les r\u00e9injectant. Les 170 000 m3 de b\u00e9ton cellulaire fabriqu\u00e9s annuellement g\u00e9n\u00e8rent des poudres issues du per\u00e7age et de l\u2019usinage des blocs de cha\u00eenage (environ 30 000 m3) et des chutes de mat\u00e9riaux. Ces chutes de production \u00e9taient jusqu\u2019alors exp\u00e9di\u00e9es vers d\u2019autres sites. Les \u00e9quipes de l\u2019usine ont donc travaill\u00e9 sur une recette qui permettrait de substituer 15 % de sable par de la poudre de b\u00e9ton cellulaire recycl\u00e9. Aujourd\u2019hui, cette poudre entre dans la composition du b\u00e9ton cellulaire. Les chutes sont revaloris\u00e9es gr\u00e2ce \u00e0 un investissement de 1,1 million d\u2019euros dans un nouveau syst\u00e8me concasseur et crible. La mise en place de cette nouvelle recette et l\u2019investissement dans les \u00e9quipements permettent de r\u00e9duire de 15 \u00e0 20 % la consommation de sable n\u00e9cessaire \u00e0 la production de b\u00e9ton cellulaire. Le recyclage de reliquats de b\u00e9ton cellulaire permet de r\u00e9aliser des \u00e9conomies de transport. Pour les rebuts : 1 camion par jour, au lieu de 2 camions auparavant, ce qui permet une r\u00e9duction de 220 camions par an. Pour le sable : Pratiquement 2 camions sur 10 par jour en termes de trajets de r\u00e9approvisionnement entre la carri\u00e8re de sable et l\u2019usine.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>lus grand producteur de b\u00e9ton cellulaire et de pierre silico-calcaire, le groupe Xella a \u00e0 c\u0153ur d\u2019am\u00e9liorer sans cesse la durabilit\u00e9 de ses solutions constructives et de contribuer \u00e0 r\u00e9duire son empreinte carbone dans l\u2019industrie de la construction. Son site de production de Saint-Savin, situ\u00e9 dans la r\u00e9gion de Lyon, fabrique et commercialise les blocs [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":107293,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[10530,6345,10781,10778],"tags":[1092,11430],"class_list":["post-107292","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-economie-marches","category-publications-planete","category-planete","tag-beton-cellulaire-2","tag-economie-circulaire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Xella recycle les chutes de production<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/batijournal.com\/index.php\/xella-recycle-les-chutes-de-production\/107292\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Xella recycle les chutes de production\" \/>\n<meta property=\"og:description\" content=\"lus grand producteur de b\u00e9ton cellulaire et de pierre silico-calcaire, le groupe Xella a \u00e0 c\u0153ur d\u2019am\u00e9liorer sans cesse la durabilit\u00e9 de ses solutions constructives et de contribuer \u00e0 r\u00e9duire son empreinte carbone dans l\u2019industrie de la construction. 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