{"id":67522,"date":"2025-05-19T12:16:56","date_gmt":"2025-05-19T11:16:56","guid":{"rendered":"https:\/\/lasentinelle.dz\/?p=67522"},"modified":"2025-05-19T12:16:57","modified_gmt":"2025-05-19T11:16:57","slug":"transformer-les-vases-de-barrages-en-materiaux-de-construction-durables-une-innovation-algerienne-face-au-stress-hydrique","status":"publish","type":"post","link":"https:\/\/lasentinelle.dz\/index.php\/2025\/05\/19\/transformer-les-vases-de-barrages-en-materiaux-de-construction-durables-une-innovation-algerienne-face-au-stress-hydrique\/","title":{"rendered":"Transformer les vases de barrages en mat\u00e9riaux de construction durables : Une innovation alg\u00e9rienne face au stress hydrique"},"content":{"rendered":"\n<p>L&rsquo;Alg\u00e9rie fait face \u00e0 un d\u00e9fi environnemental majeur : le stress hydrique croissant, aggrav\u00e9 par l&rsquo;envasement des barrages qui diminue drastiquement leur capacit\u00e9 de stockage. Face \u00e0 cette situation pr\u00e9occupante, une solution innovante \u00e9merge du g\u00e9nie alg\u00e9rien : la valorisation des vases de barrages en mat\u00e9riaux de construction durables. Dans un communiqu\u00e9 rendu public, Holcim El-Djazair annonce que cette avanc\u00e9e sera pr\u00e9sent\u00e9e lors de la 20\u1d49 \u00e9dition du Salon SIEE-Pollutec qui se tiendra du 18 au 20 mai 2025 \u00e0 la SAFEX.<\/p>\n\n\n\n<p>Ce projet r\u00e9volutionnaire, pr\u00e9cise le communiqu\u00e9, est issu des travaux de l&rsquo;Universit\u00e9 de A\u00efn T\u00e9mouchent et d\u00e9montre que les vases des barrages, \u00ab riches en argiles, repr\u00e9sentent un gisement sous-estim\u00e9 \u00e0 fort potentiel \u00bb. Gr\u00e2ce \u00e0 des recherches scientifiques pouss\u00e9es, ces s\u00e9diments peuvent \u00eatre transform\u00e9s en \u00ab briques g\u00e9opolym\u00e8res, b\u00e9ton bas carbone et ciment durable par co-processing \u00bb. Cette d\u00e9marche s&rsquo;inscrit dans le cadre du Programme National de Recherche (PNR) 2022, au sein du projet \u00ab Promotion des mat\u00e9riaux biosourc\u00e9s \u00e0 fort potentiel thermique pour l&rsquo;efficacit\u00e9 \u00e9nerg\u00e9tique dans le b\u00e2timent \u00bb.<\/p>\n\n\n\n<p>L&rsquo;impact de cette innovation est triple, souligne Holcim. Sur le plan environnemental, elle permet de \u00ab restaurer la capacit\u00e9 des barrages \u00bb en extrayant les vases qui r\u00e9duisent leur efficacit\u00e9 hydrique. \u00c9conomiquement, l&rsquo;utilisation de ces s\u00e9diments contribue \u00e0 \u00ab pr\u00e9server les ressources naturelles \u00bb en limitant l&rsquo;extraction de mati\u00e8res premi\u00e8res vierges. Enfin, sur le plan strat\u00e9gique, elle \u00ab stimule l&rsquo;innovation dans le BTP \u00bb en offrant une base pour d\u00e9velopper une industrie plus propre et r\u00e9siliente face aux d\u00e9fis climatiques.<\/p>\n\n\n\n<p>Le salon SIEE-Pollutec, qui rassemblera plus de 140 exposants et acteurs majeurs des secteurs de l&rsquo;eau et de l&rsquo;environnement, sera l&rsquo;occasion d&rsquo;une pr\u00e9sentation d&rsquo;envergure des r\u00e9sultats de ce projet novateur. Cette solution, d\u00e9j\u00e0 valid\u00e9e en laboratoire, fait l&rsquo;objet d&rsquo;applications \u00e0 l&rsquo;international, soulignant sa pertinence et son efficacit\u00e9. Cependant, comme le pr\u00e9cise le communiqu\u00e9, elle doit \u00ab en priorit\u00e9, b\u00e9n\u00e9ficier \u00e0 l&rsquo;Alg\u00e9rie et \u00e0 ses g\u00e9n\u00e9rations futures \u00bb.<\/p>\n\n\n\n<p>Cette initiative refl\u00e8te parfaitement \u00ab l&rsquo;esprit des orientations du Pr\u00e9sident de la R\u00e9publique en mati\u00e8re d&rsquo;autosuffisance hydrique, de souverainet\u00e9 industrielle alg\u00e9rienne et de transition \u00e9cologique \u00bb, indique l&rsquo;entreprise. Face \u00e0 l&rsquo;urgence de la situation, Holcim El-Djazair estime qu&rsquo;il est essentiel que \u00ab les plus hautes autorit\u00e9s de l&rsquo;\u00c9tat s&rsquo;engagent derri\u00e8re notre Pr\u00e9sident de la R\u00e9publique et soutiennent cette initiative, en mobilisant les leviers institutionnels, r\u00e9glementaires et industriels n\u00e9cessaires \u00e0 sa mise en \u0153uvre \u00e0 grande \u00e9chelle \u00bb.<\/p>\n\n\n\n<p>L&rsquo;enjeu est consid\u00e9rable : transformer un d\u00e9fi environnemental en opportunit\u00e9 pour le d\u00e9veloppement durable du pays. Plus encore, cette solution innovante repr\u00e9sente une chance unique d&rsquo;\u00ab exporter une solution &lsquo;made in Algeria&rsquo; vers le monde \u00bb, renfor\u00e7ant ainsi le rayonnement scientifique et industriel de l&rsquo;Alg\u00e9rie sur la sc\u00e8ne internationale, pr\u00e9cise&#8211;on.<\/p>\n\n\n\n<p>\u00c0 l&rsquo;heure o\u00f9 la gestion durable des ressources hydriques devient une priorit\u00e9 mondiale, cette innovation alg\u00e9rienne d\u00e9montre la capacit\u00e9 du pays \u00e0 proposer des solutions concr\u00e8tes et efficaces face aux d\u00e9fis environnementaux contemporains. Elle illustre parfaitement comment la recherche scientifique nationale peut servir le d\u00e9veloppement durable et l&rsquo;ind\u00e9pendance technologique du pays, tout en contribuant aux efforts globaux de lutte contre les effets du changement climatique.<\/p>\n\n\n\n<p>Lyna Larbi<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;Alg\u00e9rie fait face \u00e0 un d\u00e9fi environnemental majeur : le stress hydrique croissant, aggrav\u00e9 par l&rsquo;envasement des barrages qui diminue<\/p>\n","protected":false},"author":6,"featured_media":63714,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"default","_twitter_share_type":"default","_linkedin_share_type":"default","_pinterest_share_type":"default","_linkedin_share_type_page":"","_instagram_share_type":"default","_medium_share_type":"default","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[27],"tags":[],"class_list":["post-67522","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite"],"yoast_head":"<!-- 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