{"id":5559,"date":"2026-08-25T14:55:31","date_gmt":"2026-08-25T12:55:31","guid":{"rendered":"https:\/\/avant4degres.fr\/?page_id=5559"},"modified":"2026-09-01T11:04:38","modified_gmt":"2026-09-01T09:04:38","slug":"sable-construction-impacts-ecologiques-et-solutions-alternatives","status":"publish","type":"page","link":"https:\/\/avant4degres.fr\/en\/sable-construction-impacts-ecologiques-et-solutions-alternatives\/","title":{"rendered":"Sable &amp; construction : impacts \u00e9cologiques et solutions alternatives"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"5559\" class=\"elementor elementor-5559\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7a498ce e-flex e-con-boxed e-con e-parent\" data-id=\"7a498ce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d12d048 elementor-widget elementor-widget-heading\" data-id=\"d12d048\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Sable &amp; construction : impacts \u00e9cologiques et solutions alternatives<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0949573 elementor-widget elementor-widget-text-editor\" data-id=\"0949573\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>1er septembre 2026<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d397445 e-flex e-con-boxed e-con e-parent\" data-id=\"d397445\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4282392 elementor-arrows-position-inside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"4282392\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;speed&quot;:500}\" data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-carousel-wrapper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Carrousel d\u2019images\" dir=\"ltr\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 of 7\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2026\/08\/Sable-2-300x300.jpg\" alt=\"Sable (2)\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 of 7\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2026\/08\/Sable-3-300x300.jpg\" alt=\"Sable (3)\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"3 of 7\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2026\/08\/Sable-4-300x300.jpg\" alt=\"Sable (4)\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"4 of 7\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2026\/08\/Sable-5-300x300.jpg\" alt=\"Sable (5)\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"5 of 7\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2026\/08\/Sable-6-300x300.jpg\" alt=\"Sable (6)\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"6 of 7\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2026\/08\/Sable-7-300x300.jpg\" alt=\"Sable (7)\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"7 of 7\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2026\/08\/Sable-8-300x300.jpg\" alt=\"Sable (8)\" \/><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-right\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M696 533C708 521 713 504 713 487 713 471 708 454 696 446L400 146C388 133 375 125 354 125 338 125 325 129 313 142 300 154 292 171 292 187 292 204 296 221 308 233L563 492 304 771C292 783 288 800 288 817 288 833 296 850 308 863 321 871 338 875 354 875 371 875 388 867 400 854L696 533Z\"><\/path><\/svg>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-80317ce e-flex e-con-boxed e-con e-parent\" data-id=\"80317ce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fadc887 elementor-widget elementor-widget-text-editor\" data-id=\"fadc887\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>J\u2019ai r\u00e9cemment eu l\u2019occasion de visiter l\u2019une des carri\u00e8res de sable de la soci\u00e9t\u00e9 Fulchiron \u00e0 Milly-la-For\u00eat. Ce <strong>sable fin et blanc, dit \u00ab\u00a0de Fontainebleau\u00a0\u00bb<\/strong>, s\u2019est d\u00e9pos\u00e9 il y a 30 millions d\u2019ann\u00e9es lorsque le Bassin parisien \u00e9tait recouvert d\u2019une mer peu profonde. <strong>R\u00e9put\u00e9 pour sa puret\u00e9 (jusqu\u2019\u00e0 99% de silice)<\/strong>, il est notamment utilis\u00e9 dans la verrerie, de nombreuses industries et\u2026 les enduits\u00a0!<\/p><p>On a beaucoup parl\u00e9 du sable ces derni\u00e8res ann\u00e9es, a fortiori puisque <strong>le secteur de la construction est le premier consommateur mondial de sable<\/strong>. Le sable du d\u00e9sert \u00e9tant inadapt\u00e9 \u00e0 la construction, <strong>l\u2019exploitation concerne uniquement le sable marin et de rivi\u00e8re<\/strong>, avec des cons\u00e9quences d\u00e9sastreuses pour l\u2019environnement\u00a0: le sable extrait des rivi\u00e8res, dont le cheminement naturel est d\u00e9j\u00e0 interrompu par les barrages, ne peut pas rejoindre la mer, <strong>modifiant la morphologie des c\u00f4tes et provoquant l\u2019\u00e9rosion des littoraux<\/strong>, exposant ainsi les populations \u00e0 des risques accrus d\u2019inondation. Certaines \u00eeles indon\u00e9siennes ont d\u00e9j\u00e0 disparu \u00e0 cause de l\u2019extraction intensive de sable.<\/p><p>L\u2019\u00e9rosion des c\u00f4tes a \u00e9galement des cons\u00e9quences sur l\u2019agriculture\u00a0: <strong>l\u2019infiltration de l\u2019eau de mer dans les estuaires augmente la salinit\u00e9 de l\u2019eau de rivi\u00e8re<\/strong> et rend les terres inexploitables. Outre les impacts sur les populations humaines, les m\u00e9thodes d\u2019extraction du sable marin et de rivi\u00e8re ont \u00e9videmment un fort impact sur la biodiversit\u00e9, modifiant le fonctionnement hydrologique des cours d\u2019eau, bouleversant les \u00e9cosyst\u00e8mes.<\/p><p>Environ <strong>35 Mt de d\u00e9chets inertes<\/strong> (b\u00e9ton, gravats, ciment, verre, etc.) sont g\u00e9n\u00e9r\u00e9es annuellement en France pour le secteur du b\u00e2timent (hors travaux publics). Le <strong>recyclage du b\u00e9ton<\/strong> est pr\u00e9sent\u00e9 comme une solution pour r\u00e9duire la consommation de sable : c\u2019est l\u2019objectif du projet de recherche SAND men\u00e9 le Cerema, le centre de recyclage Clamens et l\u2019entreprise Parex-Sika. Dans les enduits, les alternatives les plus vertueuses sont \u00e9videmment les <strong>fibres v\u00e9g\u00e9tales<\/strong>, comme la paille, le chanvre et le lin, mais il est \u00e9galement possible de remplacer le sable par du <strong>verre recycl\u00e9<\/strong>, vendu comme m\u00e9dia abrasif pour le sablage.<\/p><p>\ud83d\udcd6 RICHER Camille (2018) \u2013 <span style=\"text-decoration: underline;\"><a href=\"https:\/\/reporterre.net\/Le-sable-une-ressource-en-voie-d-epuisement\" target=\"_blank\" rel=\"noopener\">Le sable, une ressource en voie d\u2019\u00e9puisement<\/a><\/span>, <em>Reporterre<\/em>, mis en ligne le 26\/04\/2018<\/p><p>\ud83d\udcd6 MAGALH\u00c3ES Nelo (2022) &#8211; <a href=\"https:\/\/theses.hal.science\/tel-04861102\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\"><em>Mati\u00e8res \u00e0 produire l&rsquo;espace : une histoire environnementale des grandes infrastructures depuis 1945<\/em><\/span><\/a>, th\u00e8se de doctorat, Universit\u00e9 Paris Cit\u00e9, 473 p.<\/p><p>\ud83d\udcbb BERNON Nicolas (2019) \u2013 <span style=\"text-decoration: underline;\"><a href=\"http:\/\/www.observatoire-cote-aquitaine.fr\/Le-sable-une-ressource-essentielle-en-voie-de-disparition\" target=\"_blank\" rel=\"noopener\">Le sable, une ressource essentielle en voie de disparition, Observatoire de la c\u00f4te Nouvelle-Aquitaine<\/a><\/span>, mis en ligne le 17\/09\/2019<\/p><p>\ud83d\udcbb Cerema (2021) &#8211;\u00a0<span style=\"font-size: 16px; text-decoration: underline;\"><a href=\"https:\/\/www.cerema.fr\/fr\/actualites\/sables-alternatifs-issus-deconstruction-batiments-projet\" target=\"_blank\" rel=\"noopener\">Vers des sables alternatifs issus de la d\u00e9construction des b\u00e2timents : le projet de recherche SAND<\/a><\/span><span style=\"font-size: 16px;\">, mis en ligne le 18 octobre 2021<\/span><\/p><p>\ud83c\udfa5 Documentaire <em>Sable : enqu\u00eate sur une disparition<\/em> de Denis Delestrac (2013)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c098d02 elementor-align-center elementor-mobile-align-right elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"c098d02\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/avant4degres.fr\/en\/realisation-denduits-en-terre-crue-et-a-la-chaux\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Je veux faire des enduits sans sable<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Sable &amp; construction : impacts \u00e9cologiques et solutions alternatives 1er septembre 2026 J\u2019ai r\u00e9cemment eu l\u2019occasion de visiter l\u2019une des carri\u00e8res de sable de la soci\u00e9t\u00e9 Fulchiron \u00e0 Milly-la-For\u00eat. Ce sable fin et blanc, dit \u00ab\u00a0de Fontainebleau\u00a0\u00bb, s\u2019est d\u00e9pos\u00e9 il y a 30 millions d\u2019ann\u00e9es lorsque le Bassin parisien \u00e9tait recouvert d\u2019une mer peu profonde. 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