{"id":3052,"date":"2026-10-22T14:08:29","date_gmt":"2026-10-22T12:08:29","guid":{"rendered":"https:\/\/durandal.fr\/?page_id=3052"},"modified":"2026-10-22T14:09:28","modified_gmt":"2026-10-22T12:09:28","slug":"casser-un-rocher-ou-une-pierre","status":"publish","type":"page","link":"https:\/\/durandal.fr\/index.php\/casser-un-rocher-ou-une-pierre\/","title":{"rendered":"Casser un rocher ou une pierre"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3052\" class=\"elementor elementor-3052\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7930dc3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7930dc3\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-37c55d3\" data-id=\"37c55d3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-32359ea elementor-widget elementor-widget-spacer\" data-id=\"32359ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42e4d0e elementor-widget elementor-widget-spacer\" data-id=\"42e4d0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26fb94a elementor-widget elementor-widget-heading\" data-id=\"26fb94a\" 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\">Casser un rocher ou une pierre<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bcc9230 elementor-widget elementor-widget-spacer\" data-id=\"bcc9230\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f78e288 elementor-widget elementor-widget-text-editor\" data-id=\"f78e288\" 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>Un rocher affleure au milieu du jardin, une grosse pierre g\u00eane l&rsquo;implantation d&rsquo;une piscine ou d&rsquo;une cl\u00f4ture, un banc rocheux emp\u00eache de terminer un terrassement ? Pour casser un rocher ou une pierre, la bonne m\u00e9thode d\u00e9pend de trois \u00e9l\u00e9ments : la duret\u00e9 de la roche, le volume \u00e0 fragmenter (partie enterr\u00e9e comprise) et ce qui se trouve autour : maison, mur, canalisations ou piscine.<\/p><p>Fabricant du mortier expansif Durandal depuis 2003, nous accompagnons particuliers et professionnels dans la fragmentation de rochers sans engin ni explosif. Nous d\u00e9taillons ici les m\u00e9thodes possibles, puis la mise en \u0153uvre de notre mortier sur la roche : diam\u00e8tre des forages, \u00e9cartement, dosage et d\u00e9gagement des blocs.<\/p><p><strong>SARL Durandal \u2013 478 Route de Montamel, 46310 Uzech \u2013 06 47 92 11 75<\/strong><br>Notre \u00e9quipe se tient \u00e0 votre disposition du lundi au vendredi de 08h00 \u00e0 19h00 pour \u00e9tudier votre rocher.<\/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-6a4f790 elementor-widget elementor-widget-spacer\" data-id=\"6a4f790\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b2b6c31 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b2b6c31\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2b9bc52\" data-id=\"2b9bc52\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ce029c7 elementor-widget elementor-widget-heading\" data-id=\"ce029c7\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Masse, Coins, Brise-Roche ou Mortier Expansif : Quelle M\u00e9thode Choisir ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c11611 elementor-widget elementor-widget-spacer\" data-id=\"9c11611\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ed3b9f elementor-widget elementor-widget-text-editor\" data-id=\"7ed3b9f\" 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>Plusieurs techniques permettent de venir \u00e0 bout d&rsquo;un rocher. Elles ne demandent ni le m\u00eame mat\u00e9riel, ni le m\u00eame acc\u00e8s, ni le m\u00eame budget :<\/p><ul><li><strong>La masse et le pic.<\/strong> Suffisants pour une pierre de taille modeste, d\u00e9j\u00e0 fissur\u00e9e ou en roche tendre. Sur un bloc de granite, l&rsquo;effort devient vite disproportionn\u00e9.<\/li><li><strong>Les coins \u00e9clateurs (plumes et coins).<\/strong> Technique de carrier : on perce une ligne de trous, on y glisse deux demi-coquilles m\u00e9talliques et un coin, puis on frappe chaque coin \u00e0 tour de r\u00f4le jusqu&rsquo;\u00e0 l&rsquo;ouverture de la pierre. Efficace, mais tr\u00e8s physique.<\/li><li><strong>Le marteau-piqueur ou le brise-roche hydraulique.<\/strong> Mont\u00e9 sur une mini-pelle, le brise-roche casse vite les gros volumes, \u00e0 condition de pouvoir faire entrer l&rsquo;engin. Il g\u00e9n\u00e8re bruit, vibrations et projections, \u00e0 \u00e9viter pr\u00e8s d&rsquo;une maison, d&rsquo;une piscine ou d&rsquo;un mur ancien.<\/li><li><strong>Les explosifs.<\/strong> Leur usage est r\u00e9serv\u00e9 \u00e0 des professionnels habilit\u00e9s et soumis \u00e0 autorisation : ce n&rsquo;est pas une option pour un particulier.<\/li><li><strong>Le mortier expansif.<\/strong> Vers\u00e9 dans des trous for\u00e9s dans le rocher, il gonfle en s\u00e9chant et fend la pierre de l&rsquo;int\u00e9rieur, sans bruit ni vibration. Un perforateur, de l&rsquo;eau et un peu de patience suffisent.<\/li><\/ul><p>La vid\u00e9o ci-dessous pr\u00e9sente la mise en \u0153uvre du mortier expansif Durandal.<\/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-1d379ab elementor-widget elementor-widget-spacer\" data-id=\"1d379ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f592653 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f592653\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-f390d64\" data-id=\"f390d64\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d0bfb8d\" data-id=\"d0bfb8d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3bfcede elementor-widget elementor-widget-video\" data-id=\"3bfcede\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/5nnx5i9zZBw?si=pCMqDHY3len9-Wct&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-fdd2674\" data-id=\"fdd2674\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-834bb05 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"834bb05\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5698a4b\" data-id=\"5698a4b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d46fa8b elementor-widget elementor-widget-spacer\" data-id=\"d46fa8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ffa4c0c elementor-widget elementor-widget-spacer\" data-id=\"ffa4c0c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57c620a elementor-widget elementor-widget-heading\" data-id=\"57c620a\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Identifier la Roche et le Volume \u00e0 Casser<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-72993ef elementor-widget elementor-widget-spacer\" data-id=\"72993ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d83ddf3 elementor-widget elementor-widget-text-editor\" data-id=\"d83ddf3\" 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>Avant de percer, prenez le temps d&rsquo;observer votre rocher. Deux informations orientent toute la suite.<\/p><h3>La Duret\u00e9 de la Pierre<\/h3><p>Une roche friable ou tendre, comme un calcaire tendre ou une molasse, se fore facilement et se travaille avec le plus petit diam\u00e8tre de forage. Une roche dure, comme un calcaire compact, demande un diam\u00e8tre interm\u00e9diaire. Les roches tr\u00e8s dures, granite, basalte ou roche bleue, r\u00e9clament le plus gros diam\u00e8tre.<\/p><h3>La Partie Enterr\u00e9e et les Faces Libres<\/h3><p>Un rocher visible sur 50 cm peut en cacher autant sous la terre. D\u00e9gagez sa base \u00e0 la pelle pour mesurer sa hauteur r\u00e9elle et cr\u00e9er des faces libres : la pierre se fend plus facilement lorsqu&rsquo;elle peut s&rsquo;ouvrir vers le vide. Si vous creusez autour du bloc, pensez aux r\u00e9seaux enterr\u00e9s (eau, \u00e9lectricit\u00e9, assainissement) et aux d\u00e9marches de rep\u00e9rage que nous d\u00e9taillons dans notre article sur la <a href=\"https:\/\/durandal.fr\/index.php\/casser-dalle-beton-methodes-pour-terrasse-garage\/\">casse d&rsquo;une dalle b\u00e9ton<\/a>.<\/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-f8d5280 elementor-widget elementor-widget-spacer\" data-id=\"f8d5280\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a23ed3f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a23ed3f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a928a60\" data-id=\"a928a60\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-902c55e elementor-widget elementor-widget-spacer\" data-id=\"902c55e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-290e6ea elementor-widget elementor-widget-heading\" data-id=\"290e6ea\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Diam\u00e8tre et \u00c9cartement des Forages selon la Roche<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bea707 elementor-widget elementor-widget-spacer\" data-id=\"6bea707\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cfc7a1c elementor-widget elementor-widget-text-editor\" data-id=\"cfc7a1c\" 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>Le diam\u00e8tre de forage se choisit d&rsquo;apr\u00e8s la duret\u00e9 de la pierre, et il fixe l&rsquo;\u00e9cartement maximal entre deux trous :<\/p><ul><li><strong>\u00d8 30 mm<\/strong> pour les roches friables ou tendres : 30 cm d&rsquo;\u00e9cartement maximum.<\/li><li><strong>\u00d8 35 mm<\/strong> pour une roche dure : 35 cm d&rsquo;\u00e9cartement maximum.<\/li><li><strong>\u00d8 40 mm<\/strong> pour les roches tr\u00e8s dures de type granite ou roche bleue, et pour d\u00e9couper des blocs volumineux : 40 cm d&rsquo;\u00e9cartement maximum.<\/li><\/ul><p>Pour d\u00e9tacher un bloc massif le long d&rsquo;une ligne droite, resserrez les forages sur la ligne de coupe. En cas de doute sur votre roche, contactez-nous en d\u00e9crivant votre rocher (photos, dimensions) : nous vous indiquerons le maillage adapt\u00e9.<\/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-596b01f elementor-widget elementor-widget-spacer\" data-id=\"596b01f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f9d60a2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f9d60a2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-65fad70\" data-id=\"65fad70\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-449edae elementor-widget elementor-widget-image\" data-id=\"449edae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/forer-rocher-mortier-expansif.jpg\" class=\"attachment-large size-large wp-image-3053\" alt=\"forer un rocher mortier expansif\" srcset=\"https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/forer-rocher-mortier-expansif.jpg 1024w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/forer-rocher-mortier-expansif-300x168.jpg 300w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/forer-rocher-mortier-expansif-768x429.jpg 768w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/forer-rocher-mortier-expansif-600x335.jpg 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ad5c337\" data-id=\"ad5c337\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fc7cd90 elementor-widget elementor-widget-text-editor\" data-id=\"fc7cd90\" 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<h3>Quelle Profondeur Percer ?<\/h3><p>Pour un rocher simplement pos\u00e9 sur le sol, forez sur environ 80 % de sa hauteur : 80 cm de forage pour un bloc de 1 m, le mortier se charge du reste. Si votre foret ne mesure que 50 cm, proc\u00e9dez en deux passes : une premi\u00e8re s\u00e9rie de forages, puis une seconde apr\u00e8s avoir d\u00e9gag\u00e9 les morceaux d\u00e9j\u00e0 d\u00e9tach\u00e9s, avec des trous moins profonds.<\/p><h3>Quel Maillage pour des Blocs Manipulables ?<\/h3><p>Un quadrillage de forages tous les 30 cm environ donne des morceaux de 30 x 30 cm, que l&rsquo;on d\u00e9place \u00e0 la main et que l&rsquo;on peut r\u00e9utiliser pour monter un muret. Pour un banc rocheux qui n&rsquo;offre qu&rsquo;une seule face libre, suivez le sch\u00e9ma de d\u00e9caissement de notre <a href=\"https:\/\/durandal.fr\/index.php\/calculer-la-consommation-en-durandal\/\">guide de dosage<\/a> : la disposition des forages permet alors au mortier de casser la roche.<\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-017e390 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"017e390\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-818be59\" data-id=\"818be59\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-39d7e75 elementor-widget elementor-widget-spacer\" data-id=\"39d7e75\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf0ad5b elementor-widget elementor-widget-heading\" data-id=\"cf0ad5b\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Pr\u00e9parer le Mortier Expansif Durandal<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74f4b81 elementor-widget elementor-widget-spacer\" data-id=\"74f4b81\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-431e006 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"431e006\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2477f45\" data-id=\"2477f45\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4eedad8 elementor-widget elementor-widget-text-editor\" data-id=\"4eedad8\" 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>Le mortier expansif Durandal se m\u00e9lange avec 30 % de son poids en eau, soit 3 litres d&rsquo;eau pour 10 kg de produit. M\u00e9langez au malaxeur jusqu&rsquo;\u00e0 obtenir une p\u00e2te homog\u00e8ne, et ne pr\u00e9parez que la quantit\u00e9 que vous pourrez verser aussit\u00f4t.<\/p><h3>Combien de Mortier pour Casser un Rocher ?<\/h3><p>La quantit\u00e9 se calcule \u00e0 partir du m\u00e9trage lin\u00e9aire de forage : nombre de trous multipli\u00e9 par leur profondeur, puis par la consommation propre au diam\u00e8tre choisi. Par exemple, 8 forages de \u00d8 35 mm sur 60 cm de profondeur repr\u00e9sentent 4,8 m lin\u00e9aires, soit 4,8 x 1,6 kg = 7,7 kg de mortier environ. Notre <a href=\"https:\/\/durandal.fr\/index.php\/calculer-la-consommation-en-durandal\/\">guide de dosage<\/a> indique la consommation pour chaque diam\u00e8tre. Le mortier Durandal est disponible en cartons de <a href=\"https:\/\/durandal.fr\/index.php\/produit\/carton-5-kg-durandal\/\">5 kg<\/a>, <a href=\"https:\/\/durandal.fr\/index.php\/produit\/carton-10kg-durandal-copie\/\">10 kg<\/a> et <a href=\"https:\/\/durandal.fr\/index.php\/produit\/carton-20kg-durandal-copie\/\">20 kg<\/a>.<\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-576d662 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"576d662\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1ee6643\" data-id=\"1ee6643\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-eecc380 elementor-widget elementor-widget-spacer\" data-id=\"eecc380\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-52a2c1c elementor-widget elementor-widget-heading\" data-id=\"52a2c1c\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Couler le Mortier dans les Trous du Rocher<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-006af02 elementor-widget elementor-widget-spacer\" data-id=\"006af02\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9a71308 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9a71308\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-bacb5b2\" data-id=\"bacb5b2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e6ddad3 elementor-widget elementor-widget-image\" data-id=\"e6ddad3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-rocher-mortier-expansif.jpg\" class=\"attachment-large size-large wp-image-3054\" alt=\"casser un rocher mortier expansif\" srcset=\"https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-rocher-mortier-expansif.jpg 1024w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-rocher-mortier-expansif-300x168.jpg 300w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-rocher-mortier-expansif-768x429.jpg 768w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-rocher-mortier-expansif-600x335.jpg 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d26eee0\" data-id=\"d26eee0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e4d82e4 elementor-widget elementor-widget-text-editor\" data-id=\"e4d82e4\" 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>D\u00e9poussi\u00e9rez les forages, puis versez le m\u00e9lange d\u00e8s qu&rsquo;il est pr\u00eat, en remplissant les trous comme l&rsquo;indique notre <a href=\"https:\/\/durandal.fr\/index.php\/comment-utiliser-mortier-expansif\/\">notice d&rsquo;utilisation<\/a>. Travaillez rang\u00e9e par rang\u00e9e pour que chaque trou re\u00e7oive un mortier fra\u00eechement pr\u00e9par\u00e9.<\/p><p>Le mortier r\u00e9agit en s\u00e9chant : une fois les trous remplis, \u00e9vitez de vous pencher au-dessus et tenez enfants et animaux \u00e0 distance de la zone.<\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e1efc86 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e1efc86\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18764fc\" data-id=\"18764fc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f7f8d5a elementor-widget elementor-widget-spacer\" data-id=\"f7f8d5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5cb7f5b elementor-widget elementor-widget-heading\" data-id=\"5cb7f5b\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Laisser le Mortier Fendre la Pierre<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd62d19 elementor-widget elementor-widget-spacer\" data-id=\"cd62d19\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68a8b9f elementor-widget elementor-widget-text-editor\" data-id=\"68a8b9f\" 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>En s\u00e9chant, le mortier gonfle et exerce une pouss\u00e9e continue sur les parois de chaque forage. Comptez en g\u00e9n\u00e9ral 24 \u00e0 48 heures pour voir les fissures s&rsquo;ouvrir et la pierre se fendre le long de la ligne de trous. Pendant ce d\u00e9lai, \u00e9vitez toute vibration ou intervention sur le rocher, et laissez la zone balis\u00e9e.<\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e5e9df0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e5e9df0\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7e9c298\" data-id=\"7e9c298\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9f2f272 elementor-widget elementor-widget-spacer\" data-id=\"9f2f272\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c08847 elementor-widget elementor-widget-heading\" data-id=\"1c08847\" 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<h2 class=\"elementor-heading-title elementor-size-default\">D\u00e9gager les Blocs et \u00c9vacuer les D\u00e9bris<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba3b66d elementor-widget elementor-widget-spacer\" data-id=\"ba3b66d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70750f3 elementor-widget elementor-widget-text-editor\" data-id=\"70750f3\" 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>Une fois le rocher fragment\u00e9, \u00e9cartez les blocs au pied-de-biche ou \u00e0 la barre \u00e0 mine ; un coup de masse suffit souvent \u00e0 s\u00e9parer les derniers morceaux. Si le rocher \u00e9tait \u00e9pais, r\u00e9alisez une seconde passe de forages sur la partie restante.<\/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-ff9cadc elementor-widget elementor-widget-spacer\" data-id=\"ff9cadc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9d858b3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9d858b3\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-23f7ee5\" data-id=\"23f7ee5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0c75f6b elementor-widget elementor-widget-image\" data-id=\"0c75f6b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-pierre-sans-engin.jpg\" class=\"attachment-large size-large wp-image-3055\" alt=\"casser une pierre sans engin\" srcset=\"https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-pierre-sans-engin.jpg 1024w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-pierre-sans-engin-300x168.jpg 300w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-pierre-sans-engin-768x429.jpg 768w, https:\/\/durandal.fr\/wp-content\/uploads\/2026\/10\/casser-pierre-sans-engin-600x335.jpg 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-372dc9a\" data-id=\"372dc9a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ff27cc1 elementor-widget elementor-widget-spacer\" data-id=\"ff27cc1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-01196f0 elementor-widget elementor-widget-text-editor\" data-id=\"01196f0\" 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>Les pierres obtenues peuvent servir \u00e0 monter un muret, une bordure ou un enrochement. Pour le reste, nous d\u00e9taillons les solutions possibles dans notre article sur l&rsquo;<a href=\"https:\/\/durandal.fr\/index.php\/solutions-evacuation-gravats-demolitions\/\">\u00e9vacuation des gravats apr\u00e8s une d\u00e9molition<\/a>.<\/p><h3>Les Protections \u00e0 Porter<\/h3><ul><li>Lunettes de protection EN 166<\/li><li>Gants r\u00e9sistants aux produits chimiques pendant le m\u00e9lange et le coulage<\/li><li>Masque FFP3 et protections auditives pendant le forage<\/li><li>Chaussures de s\u00e9curit\u00e9<\/li><\/ul>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c4b3468 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c4b3468\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1b6048d\" data-id=\"1b6048d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-231e0ec elementor-widget elementor-widget-spacer\" data-id=\"231e0ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a03c766 elementor-widget elementor-widget-spacer\" data-id=\"a03c766\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74ac610 elementor-widget elementor-widget-text-editor\" data-id=\"74ac610\" 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>Casser un rocher ou une pierre sans engin ni explosif reste \u00e0 la port\u00e9e d&rsquo;un particulier \u00e9quip\u00e9 d&rsquo;un perforateur, \u00e0 condition de bien identifier la roche, de respecter le diam\u00e8tre et l&rsquo;\u00e9cartement des forages, et de laisser au mortier le temps d&rsquo;agir. Pour un bloc hors normes, un banc rocheux \u00e9tendu ou un chantier proche d&rsquo;une construction, contactez-nous : nous \u00e9tudions votre projet et vous indiquons la quantit\u00e9 de mortier expansif Durandal n\u00e9cessaire. Retrouvez aussi notre page consacr\u00e9e \u00e0 la <a href=\"https:\/\/durandal.fr\/index.php\/comment-demolir-sans-machines-la-roche-ou-le-beton\/\">d\u00e9molition de la roche et du b\u00e9ton sans machines<\/a>.<\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0b60899 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0b60899\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a1315dc\" data-id=\"a1315dc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d5665f3 elementor-widget elementor-widget-spacer\" data-id=\"d5665f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d3edfd0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d3edfd0\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-fc88997\" data-id=\"fc88997\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b37d0c6 elementor-widget elementor-widget-heading\" data-id=\"b37d0c6\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Besoin de conseils ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7a8b676\" data-id=\"7a8b676\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-848e0e7 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"848e0e7\" 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\" href=\"https:\/\/durandal.fr\/index.php\/contact-2\/\">\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\">Contacter DURANDAL<\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6515bea elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6515bea\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-82194b9\" data-id=\"82194b9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-be3d083 elementor-widget elementor-widget-spacer\" data-id=\"be3d083\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-14b4353 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"14b4353\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ea54407\" data-id=\"ea54407\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-de41787 elementor-widget elementor-widget-heading\" data-id=\"de41787\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Un Rocher ou une Pierre \u00e0 Casser ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-acd6487\" data-id=\"acd6487\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-756a6ad elementor-align-center elementor-widget elementor-widget-button\" data-id=\"756a6ad\" 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\" href=\"https:\/\/durandal.fr\/index.php\/shop\/\">\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\">Commander du Mortier Expansif Durandal<\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f0e7d5f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f0e7d5f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c4ab980\" data-id=\"c4ab980\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d02f8b0 elementor-widget elementor-widget-spacer\" data-id=\"d02f8b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div 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elementor-top-column elementor-element elementor-element-a6d2878\" data-id=\"a6d2878\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-79e809e elementor-widget elementor-widget-image\" data-id=\"79e809e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"623\" src=\"https:\/\/durandal.fr\/wp-content\/uploads\/2022\/09\/Logo-durandal-1024x623.png\" class=\"attachment-large size-large wp-image-1111\" alt=\"\" srcset=\"https:\/\/durandal.fr\/wp-content\/uploads\/2022\/09\/Logo-durandal-1024x623.png 1024w, https:\/\/durandal.fr\/wp-content\/uploads\/2022\/09\/Logo-durandal-300x182.png 300w, https:\/\/durandal.fr\/wp-content\/uploads\/2022\/09\/Logo-durandal-768x467.png 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class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f353351 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f353351\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-63723ed elementor-widget elementor-widget-text-editor\" data-id=\"63723ed\" 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><a href=\"http:\/\/durandal.fr\">Accueil<\/a> &#8211; <a href=\"https:\/\/durandal.fr\/index.php\/mortier-expansif\/\">Mortier Expansif<\/a> &#8211; <a href=\"https:\/\/durandal.fr\/index.php\/calculer-la-consommation-en-durandal\/\">Dosage du Mortier Expansif<\/a> &#8211; <a href=\"https:\/\/durandal.fr\/index.php\/mortier-expansif-demolition\/\">Mortier Expansif de D\u00e9molition Durandal<\/a> &#8211; <a href=\"https:\/\/durandal.fr\/index.php\/comment-demolir-sans-machines-la-roche-ou-le-beton\/\">D\u00e9molir sans Engins de Chantier<\/a> &#8211; <a href=\"https:\/\/durandal.fr\/index.php\/contact-2\/\">Contact<\/a><\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Casser un rocher ou une pierre Un rocher affleure au milieu du jardin, une grosse pierre g\u00eane l&rsquo;implantation d&rsquo;une piscine ou d&rsquo;une cl\u00f4ture, un banc rocheux emp\u00eache de terminer un terrassement ? Pour casser un rocher ou une pierre, la bonne m\u00e9thode d\u00e9pend de trois \u00e9l\u00e9ments : la duret\u00e9 de la roche, le volume \u00e0&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"hide","_kad_post_layout":"fullwidth","_kad_post_sidebar_id":"","_kad_post_content_style":"unboxed","_kad_post_vertical_padding":"hide","_kad_post_feature":"hide","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-3052","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Casser un rocher ou une pierre sans engin | Durandal<\/title>\n<meta name=\"description\" content=\"Casser un rocher ou une pierre sans engin ni explosif : duret\u00e9 de la roche, diam\u00e8tre et \u00e9cartement des forages, dosage du mortier expansif Durandal.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/durandal.fr\/index.php\/casser-un-rocher-ou-une-pierre\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Casser un rocher ou une pierre sans engin | Durandal\" \/>\n<meta property=\"og:description\" content=\"Casser un rocher ou une pierre sans engin ni explosif : duret\u00e9 de la roche, diam\u00e8tre et \u00e9cartement des forages, dosage du mortier expansif Durandal.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/durandal.fr\/index.php\/casser-un-rocher-ou-une-pierre\/\" \/>\n<meta property=\"og:site_name\" content=\"Durandal - 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