{"id":1141,"date":"2024-08-13T09:30:08","date_gmt":"2024-08-13T07:30:08","guid":{"rendered":"https:\/\/renier.be\/?page_id=1141"},"modified":"2026-03-09T17:14:12","modified_gmt":"2026-03-09T16:14:12","slug":"technical-specifications-bluestone","status":"publish","type":"page","link":"https:\/\/renier.be\/en\/technische-specificaties-blauwe-hardsteen\/","title":{"rendered":"Technical Specifications Material: Blue limestone"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"1141\" class=\"elementor elementor-1141\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b69b9de e-flex e-con-boxed e-con e-parent\" data-id=\"b69b9de\" 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-d5ded06 elementor-widget elementor-widget-heading\" data-id=\"d5ded06\" 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\">Technical Properties of Belgian Blue Stone<\/h2>\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-0066632 e-flex e-con-boxed e-con e-parent\" data-id=\"0066632\" 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-bf44952 e-con-full e-flex e-con e-child\" data-id=\"bf44952\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12aff16 elementor-widget elementor-widget-text-editor\" data-id=\"12aff16\" 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>1 Geography \/ Geology<\/h2><p><strong>\u00a0<\/strong><span style=\"text-align: var(--text-align); color: var( --e-global-color-primary );\">Carri\u00e8res de la Pr\u00e9alle Sprimont S.A. quarries a blue stone called \u201cARDUIN \u2013 BELGIAN BLUE STONE \u00ae,\u201d marketed under the name \u201cARDUIN OF THE OURTHE.\u201c The La Pr\u00e9alle quarry is located in La Pr\u00e9alle, east of the former borough of Chanxhe (Sprimont), in the Ourthe-Ambl\u00e8ve basin, in the central part of the northern flank of the Sprimont Syncline. Lambert coordinates: N 50\u00b0 30\u2019 10.285\u2019\u2019 E 5\u00b0 36\u2019 25.942\u2019\u2019.<\/span><\/p><p>The material is used as a building stone and masonry stone. It is a compact, non-porous, fossil-bearing limestone containing crinoids, gray in color when cut and dark gray when freshly fractured, with stylolitic joints parallel to the bedding. The mined layers form the Ecaussinnes Encrinite Formation (Tn3b), of Ivorian age, Tournaisian\u2013Dinantian series, Lower Carboniferous.<\/p><p>Mining takes place in the open air; the benches have a strike of N88\u00b0E and a dip of 58\u00b0W in the western part of the pits, and a strike of N86\u00b0E and a dip of 50\u00b0W in the eastern part. The total mineable thickness in a single section is approximately 32.8 m.<\/p><p>The approval applies to those parts of the quarry that are of comparable quality, i.e., the homogeneous, massive production benches with low stylolite content within the operated area, clearly indicated on the cross-section (see Appendix 1, geological cross-section).<\/p><h2>2 Petrography \/ Lithology<\/h2><p><strong>\u00a0<\/strong><u style=\"text-align: var(--text-align); color: var( --e-global-color-primary );\">Macroscopic description<\/u><span style=\"text-align: var(--text-align); color: var( --e-global-color-primary );\"> :<\/span><\/p><p><span style=\"text-align: var(--text-align); color: var( --e-global-color-primary );\">\u00a0\u201cARDUIN \u2013 BELGIAN BLUE STONE \u00ae\u201d is a compact limestone of sedimentary origin formed by the accumulation of countless crinoid remains cemented together into a microcrystalline calcite mass. Its gray color on a sawn surface and dark gray color on a fresh fracture surface are due to the organic carbon present between the calcite crystals. The stone develops a moderate gray patina typical of this material. This patina, which results from aging and is inherent to the rock\u2019s composition, must be taken into account during restoration work.<\/span><\/p><p>In addition to crinoid remains, the limestone contains fragments of bryozoans (primarily Fenestella), brachiopod shells, and corals (either solitary or in colonies). A carbonated sedimentary rock is quarried in the quarry (2.2.1.2.b in PTV 819-4 Rock Classifications for Homologation, with reference to NBN EN 12670).<\/p><p><u>Microscopic description<\/u>:\u00a0<\/p><p>\u201cARDUIN \u2013 BELGIAN BLUE STONE \u00ae\u201d is a bioclastic limestone dominated by crinoids; the other fragments consist of bryozoans, brachiopods, and corals. In some beds, pellets may be observed locally. It is a packstone, sometimes a grainstone (DUNHAM classification) or a biomicrite to a biospariet (FOLK classification, see NBN EN 12670). Other lithological features may be present (see TV 220).<\/p><p><u>Composition (for informational purposes)<\/u>:\u00a0<\/p><p>The average composition is 96 to 99 % carbonate (at least 80%, mainly calcite), 0 % to 1% quartz, 0.1% to 0.4 % iron (mainly sulfides: pyrite and marcasite) and 0.2 % to 0.4 % organic carbon.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-db1d053 e-con-full e-flex e-con e-child\" data-id=\"db1d053\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;position&quot;:&quot;absolute&quot;}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c014006 e-flex e-con-boxed e-con e-child\" data-id=\"c014006\" 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-e64c2c7 elementor-widget elementor-widget-image\" data-id=\"e64c2c7\" 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=\"721\" height=\"528\" src=\"https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-BH.jpg\" class=\"attachment-full size-full wp-image-1143\" alt=\"\" srcset=\"https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-BH.jpg 721w, https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-BH-300x220.jpg 300w, https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-BH-600x439.jpg 600w\" sizes=\"(max-width: 721px) 100vw, 721px\" 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-2ae9426 e-con-full e-flex e-con e-child\" data-id=\"2ae9426\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c67c090 elementor-widget elementor-widget-button\" data-id=\"c67c090\" 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\/ATGH787-La-Prealle-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\">Click here for the full ATG certificate<\/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>Technische eigenschappen Belgische blauwe hardsteen 1 Geogra\ufb01e \/ Geologie \u00a0De Carri\u00e8res de la Pr\u00e9alle Sprimont S.A. ontginnen een blauwe steen genaamd \u201cARDUIN &#8211; BELGISCHE BLAUWE HARDSTEEN \u00ae\u201d, gecommercialiseerd onder de naam \u201cARDUIN VAN DE OURTHE\u201c. De groeve van La Pr\u00e9alle bevindt zich in La Pr\u00e9alle, ten oosten van de vroegere deelgemeente Chanxhe (Sprimont), in het [&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-1141","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 Blauwe hardsteen - 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\/en\/technical-specifications-bluestone\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Technische Specificaties Materiaal Blauwe hardsteen - Renier Natuursteen\" \/>\n<meta property=\"og:description\" content=\"Technische eigenschappen Belgische blauwe hardsteen 1 Geogra\ufb01e \/ Geologie \u00a0De Carri\u00e8res de la Pr\u00e9alle Sprimont S.A. ontginnen een blauwe steen genaamd \u201cARDUIN &#8211; BELGISCHE BLAUWE HARDSTEEN \u00ae\u201d, gecommercialiseerd onder de naam \u201cARDUIN VAN DE OURTHE\u201c. 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