{"id":1166,"date":"2024-08-13T10:55:30","date_gmt":"2024-08-13T08:55:30","guid":{"rendered":"https:\/\/renier.be\/?page_id=1166"},"modified":"2024-08-20T17:13:43","modified_gmt":"2024-08-20T15:13:43","slug":"vinalmont","status":"publish","type":"page","link":"https:\/\/renier.be\/fr\/vinalmont\/","title":{"rendered":"Caract\u00e9ristiques techniques du mat\u00e9riau Vinalmont"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"1166\" class=\"elementor elementor-1166\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3953b89 e-flex e-con-boxed e-con e-parent\" data-id=\"3953b89\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-c8b41bd e-con-full e-flex e-con e-child\" data-id=\"c8b41bd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-9335321 e-con-full e-flex e-con e-child\" data-id=\"9335321\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;position&quot;:&quot;absolute&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ae07ebe elementor-widget elementor-widget-heading\" data-id=\"ae07ebe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Calcaire de la Meuse de Vinalmont<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e2543bb elementor-widget elementor-widget-text-editor\" data-id=\"e2543bb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>\u00a0<\/h2><h2>1   G\u00e9ographie \/ G\u00e9ologie<\/h2><p><strong>\u00a0<\/strong>La S.A. Calcaire de Vinalmont extrait \u00e0 Vinalmont une pierre bleue appel\u00e9e \u201c MAASKALKSTEEN \u2013 STEEN VAN VINALMONT \u201d. La carri\u00e8re est situ\u00e9e \u00e0 Vinalmont, dans la vall\u00e9e du Fonds du Roua, \u00e0 l\u2019ouest du centre de Vinalmont, sur le flanc nord du synclinorium de Namur. Coordonn\u00e9es Lambert : N 50\u00b0 34\u2019 6\u2019\u2019 E 5\u00b0 12\u2019 10\u2019\u2019.<\/p><p>Ce mat\u00e9riau est utilis\u00e9 comme pierre de construction et de conservation. Dans la carri\u00e8re, on extrait un calcaire compact, \u00e0 grain fin et non poreux, dont la couleur va du gris p\u00e2le au gris-beige sur une surface sci\u00e9e, jusqu\u2019au gris fonc\u00e9 sur une surface de fracture fra\u00eeche. La pierre acquiert une patine gris clair caract\u00e9ristique de ce mat\u00e9riau. Les couches exploit\u00e9es se situent sur le versant nord du bassin de Namur, \u00e0 l\u2019est de la Mehaigne, et constituent la formation de Neffe, datant du Moliniacien sup\u00e9rieur, s\u00e9rie du Vis\u00e9en (V2a) \u2013 Mississippien, Carbonif\u00e8re inf\u00e9rieur.<\/p><p>La roche massive est travers\u00e9e, presque perpendiculairement \u00e0 la stratification, par trois s\u00e9ries de diaclases. L'exploitation se fait \u00e0 ciel ouvert ; les filons s'\u00e9tendent approximativement selon une direction N72\u00b0-81\u00b0E et pr\u00e9sentent une pente de 5\u00b0-10\u00b0S.<\/p><p>L'\u00e9paisseur totale exploitable en un seul bloc est d'environ 38 m. L'autorisation concerne les parties de la carri\u00e8re pr\u00e9sentant une qualit\u00e9 comparable, c\u2019est-\u00e0-dire le banc massif homog\u00e8ne, de couleur gris p\u00e2le, d\u2019une \u00e9paisseur de 30 m et contenant peu de stylolites, clairement indiqu\u00e9 sur la coupe (voir p. 5 de l\u2019annexe 1, coupe g\u00e9ologique). Ces stylolites fortement dentel\u00e9es (en forme d\u2019\u00e9lectrocardiogramme) sont caract\u00e9ristiques de la pierre de Vinalmont. Lorsqu\u2019elles sont soud\u00e9es et ferm\u00e9es, elles permettent une exploitation aussi bien perpendiculairement \u00e0 la stratification (contre-fil) que parall\u00e8lement \u00e0 celle-ci (fil).<\/p><p>Les veines mal soud\u00e9es et tr\u00e8s fines (moins de 0,1 mm) doivent \u00eatre rejet\u00e9es car elles constituent des points de rupture pr\u00e9f\u00e9rentiels de la roche. Ces derni\u00e8res se brisent g\u00e9n\u00e9ralement lors du travail de la roche.<\/p><h2>2  P\u00e9trographie \/ Lithologie<\/h2><p><strong>\u00a0<\/strong><u>Description macroscopique<\/u>: \u201c CALCAIRE DE LA MEUSE \u2013 PIERRE DE VINALMONT \u201d est un calcaire oolithique compact d\u2019une grande puret\u00e9 chimique, d\u2019origine s\u00e9dimentaire, pr\u00e9sentant une texture homog\u00e8ne caract\u00e9ris\u00e9e par une stratification crois\u00e9e, mise en \u00e9vidence par la patine. La couleur de la roche va du gris p\u00e2le au gris-beige sur une surface sci\u00e9e et au gris fonc\u00e9 sur une surface de fracture fra\u00eeche. La pierre acquiert une patine gris clair caract\u00e9ristique de ce mat\u00e9riau. Cette patine, due au vieillissement et inh\u00e9rente \u00e0 la composition de la roche, doit \u00eatre prise en compte lors des travaux de restauration. Le calcaire contient des fragments de coraux (certains gisements sont riches en coraux du type Siphonodendron) ainsi que des coquilles de brachiopodes et de gast\u00e9ropodes.<\/p><p>Selon la norme PTV 819-4 \u2018 Classification des roches dans le cadre de l'homologation, en r\u00e9f\u00e9rence \u00e0 la norme EN 12670 \u201d, il s'agit d'une roche s\u00e9dimentaire carbonat\u00e9e \u2013 calcaire oolithique : 2.2.1.3.<\/p><p><u>Description microscopique<\/u>: \u201c CALCAIRE DE LA MEUSE \u2013 ROCHE DE VINALMONT \u201d est un calcaire oolithique bioclastique riche en granules. La roche se compose principalement d\u2019une faune riche en microfossiles, dont les foraminif\u00e8res permettent de d\u00e9terminer son \u00e2ge, et pr\u00e9sentant une texture allant de \u00ab packstone \u00bb \u00e0 \u00ab grainstone \u00bb (classification de DUNHAM) ou de \u00ab biospari\u00e8te \u00bb \u00e0 \u00ab biomicrite \u00bb (classification de FOLK), voir EN 12670. D\u2019autres particularit\u00e9s lithologiques peuvent \u00eatre pr\u00e9sentes.<\/p><p><u>Composition (\u00e0 titre indicatif)<\/u>: La composition moyenne est de 99% de carbonate de calcium (CaCO\u2083), de 0,5% \u00e0 1% de silice (SiO\u2082), ainsi que des oxydes de fer, de mangan\u00e8se et de magn\u00e9sium.<\/p><h2>\u00a0<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-db24b32 e-flex e-con-boxed e-con e-child\" data-id=\"db24b32\" 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-1b2bfc4 elementor-widget elementor-widget-image\" data-id=\"1b2bfc4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"738\" height=\"591\" src=\"https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-Vinalmont.jpg\" class=\"attachment-full size-full wp-image-1188\" alt=\"\" srcset=\"https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-Vinalmont.jpg 738w, https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-Vinalmont-300x240.jpg 300w, https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-Vinalmont-600x480.jpg 600w\" sizes=\"(max-width: 738px) 100vw, 738px\" data-neo-global--processed-neo-replace=\"true\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-494fe71 e-con-full e-flex e-con e-child\" data-id=\"494fe71\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c60bb32 elementor-widget elementor-widget-button\" data-id=\"c60bb32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/ATGH798-Vinalmont-Nederlands.pdf\">\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\">Cliquez ici pour consulter le certificat ATG complet<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\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>Maaskalksteen van Vinalmont \u00a0 1\u00a0 \u00a0Geogra\ufb01e \/ Geologie \u00a0De N.V. Calcaire de Vinalmont ontgint in Vinalmont een blauwe steen genaamd \u201cMAASKALKSTEEN &#8211; STEEN VAN VINALMONT\u201d. De groeve bevindt zich te Vinalmont, in de vallei Fonds du Roua, ten westen van het centrum van Vinalmont, in de noordflank van het Synclinorium van Namen. Lambert-co\u00f6rdinaten: N 50\u00b0 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1166","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Technische Specificaties Materiaal Vinalmont - Renier Natuursteen<\/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:\/\/renier.be\/fr\/vinalmont\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Technische Specificaties Materiaal Vinalmont - Renier Natuursteen\" \/>\n<meta property=\"og:description\" content=\"Maaskalksteen van Vinalmont \u00a0 1\u00a0 \u00a0Geogra\ufb01e \/ Geologie \u00a0De N.V. Calcaire de Vinalmont ontgint in Vinalmont een blauwe steen genaamd \u201cMAASKALKSTEEN &#8211; STEEN VAN VINALMONT\u201d. De groeve bevindt zich te Vinalmont, in de vallei Fonds du Roua, ten westen van het centrum van Vinalmont, in de noordflank van het Synclinorium van Namen. 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Calcaire de Vinalmont ontgint in Vinalmont een blauwe steen genaamd \u201cMAASKALKSTEEN &#8211; STEEN VAN VINALMONT\u201d. De groeve bevindt zich te Vinalmont, in de vallei Fonds du Roua, ten westen van het centrum van Vinalmont, in de noordflank van het Synclinorium van Namen. 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