{"id":2013,"date":"2024-07-26T17:27:10","date_gmt":"2024-07-26T15:27:10","guid":{"rendered":"https:\/\/centrotest.roiweb.eu\/methode-sonreb\/"},"modified":"2024-08-11T16:42:28","modified_gmt":"2024-08-11T14:42:28","slug":"methode-sonreb","status":"publish","type":"page","link":"https:\/\/centrotest.com\/fr\/controle-non-destructif\/methode-sonreb\/","title":{"rendered":"M\u00e9thode Sonreb"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2013\" class=\"elementor elementor-2013 elementor-1712\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f99e575 e-flex e-con-boxed e-con e-parent\" data-id=\"f99e575\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-565845f elementor-widget elementor-widget-breadcrumbs\" 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.elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h5 class=\"elementor-heading-title elementor-size-default\">M\u00c9THODE SONREB<\/h5>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2185b4 elementor-widget elementor-widget-text-editor\" data-id=\"b2185b4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 26-03-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>TECHNIQUE QUI A\u00c9ELIORE LA FIABILIT\u00c9 DES R\u00c9SULTATS POUR LES METHODES ULTRASONORES ET SCL\u00c9ROM\u00c9TRIQUES<\/p>\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-50 elementor-top-column elementor-element elementor-element-26a4aade\" data-id=\"26a4aade\" data-element_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-2cd03bc elementor--h-position-center elementor--v-position-middle elementor-arrows-position-inside elementor-widget elementor-widget-slides\" data-id=\"2cd03bc\" data-element_type=\"widget\" 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class=\"elementor-swiper\">\n\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" dir=\"ltr\" data-animation=\"fadeInUp\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-0791455 swiper-slide\"><div class=\"swiper-slide-bg elementor-ken-burns elementor-ken-burns--in\" role=\"img\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-2c277b2 swiper-slide\"><div class=\"swiper-slide-bg elementor-ken-burns elementor-ken-burns--in\" role=\"img\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-e1b9ac1 swiper-slide\"><div class=\"swiper-slide-bg elementor-ken-burns elementor-ken-burns--in\" role=\"img\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\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\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\t\t<span class=\"elementor-screen-only\">Diapositive pr\u00e9c\u00e9dente<\/span>\n\t\t\t\t\t\t<\/div>\n\t\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\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\t\t<span class=\"elementor-screen-only\">Diapositive suivante<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\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-e677cd5 animated-slow elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"e677cd5\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wide\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-6457a9e1\" data-id=\"6457a9e1\" data-element_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-3df95e3 elementor-widget elementor-widget-text-editor\" data-id=\"3df95e3\" data-element_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<p>LA M\u00c9THODE<\/p>\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-05dd2b0 elementor-widget elementor-widget-text-editor\" data-id=\"05dd2b0\" data-element_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<p>Le terme <strong> Sonreb <\/strong>, cr\u00e9\u00e9 en fusionnant les termes \u00ab Sonic \u00bb et \u00ab Rebound \u00bb, identifie les principales caract\u00e9ristiques de la technique de contr\u00f4le, qui combine la <strong>mesure de la vitesse de propagation des ultrasons <\/strong> avec la <strong> mesure l&rsquo;indice de rebond scl\u00e9rom\u00e9trique<\/strong>. Cette m\u00e9thodologie combin\u00e9e suscite l&rsquo;int\u00e9r\u00eat car, par rapport \u00e0 d&rsquo;autres m\u00e9thodes de contr\u00f4le non destructif ou destructif, elle pr\u00e9sente des avantages comme la <strong> facilit\u00e9 <\/strong> et la <strong> rapidit\u00e9 d&rsquo;ex\u00e9cution <\/strong>. Les tests scl\u00e9rom\u00e9triques et ultrasonores, bien qu&rsquo;utiles pour l&rsquo;\u00e9valuation des caract\u00e9ristiques du b\u00e9ton, peuvent renvoyer des donn\u00e9es influenc\u00e9es par des facteurs qui peuvent les rendre moins fiables lorsqu&rsquo;ils sont consid\u00e9r\u00e9s s\u00e9par\u00e9ment.<\/p>\n<p>La r\u00e9glementation en vigueur permet que les essais destructifs puissent \u00eatre int\u00e9gr\u00e9s par une s\u00e9rie d&rsquo;essais non destructifs, de fiabilit\u00e9 document\u00e9e, \u00e0 condition que les r\u00e9sultats soient calibr\u00e9s sur la base de ceux obtenus par des essais destructifs. Des investigations in situ sont n\u00e9cessaires pour d\u00e9finir le niveau de connaissance que le chef de projet adoptera, sur la base duquel il d\u00e9terminera le facteur de confiance \u00e0 prendre dans l&rsquo;analyse et les tests.<\/p>\n<p>Si les r\u00e9sultats assurent la pr\u00e9sence de <strong> valeurs de r\u00e9p\u00e9tabilit\u00e9 <\/strong> \u00e0 diff\u00e9rents niveaux du b\u00e2timent, cela constitue l&rsquo;opportunit\u00e9 de quantifier le nombre d&rsquo;essais destructifs et non destructifs.<\/p>\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-dbe7e2b elementor-widget elementor-widget-text-editor\" data-id=\"dbe7e2b\" data-element_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<p>PRINCIPE ET PROC\u00c9DURES DE TEST<\/p>\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-a246686 elementor-widget elementor-widget-text-editor\" data-id=\"a246686\" data-element_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<p>L&rsquo;application de la m\u00e9thode Sonreb n\u00e9cessite l&rsquo;\u00e9valuation des valeurs locales de la vitesse ultrasonore V et de l&rsquo;indice de rebond S, \u00e0 partir desquelles vous pouvez obtenir une estimation de la r\u00e9sistance du b\u00e9ton Rc en chantier, \u00e0 l&rsquo;aide d&rsquo;expressions telles que :<\/p>\n<p><em>Rc = a\u22c5Sb\u22c5Vc<\/em><\/p>\n<p>&#8211; <strong>Rc<\/strong> est la r\u00e9sistance \u00e0 la compression cubique en [MPa] ;<br \/>\n&#8211; <strong>S<\/strong> est l&rsquo;indice scl\u00e9rom\u00e9trique ;<br \/>\n&#8211; <strong>V<\/strong> est la vitesse des ultrasons [m\/s] ;<br \/>\n&#8211; les coefficients a, b, c permettent de corr\u00e9ler au mieux les donn\u00e9es directes exp\u00e9rimentales. Par cons\u00e9quent, ils diff\u00e8rent de mani\u00e8re significative en termes de r\u00e9sultat.<\/p>\n<p>Pour la m\u00e9thode combin\u00e9e Sonreb, la variable d\u00e9pendante est Rcub, tandis que les variables ind\u00e9pendantes sont respectivement l&rsquo;indice scl\u00e9rom\u00e9trique moyen Ir et la vitesse de propagation des ultrasons Vus. La corr\u00e9lation qui suit s&rsquo;exprime de la mani\u00e8re suivante :<\/p>\n<p><em>Rcub = a\u00b7Ir\u00b7b\u00b7Vus\u00b7c [MPa, m\/s]<\/em><\/p>\n<p>Les param\u00e8tres a, b et c repr\u00e9sentent les valeurs \u00e0 d\u00e9terminer pour calibrer la loi de corr\u00e9lation au cas particulier. Disposant d\u00e9sormais, en plus des param\u00e8tres non destructifs, des valeurs de laboratoire, m\u00eame pour un m\u00eame \u00e9l\u00e9ment structurel, il est int\u00e9ressant de voir dans quelle position est plac\u00e9e (par rapport aux courbes cr\u00e9\u00e9es avec les expressions de la litt\u00e9rature) la courbe qui nous pouvons appeler de laboratoire. Bien entendu pour cela il faut au pr\u00e9alable avoir transform\u00e9 les r\u00e9sistances \u00e0 la compression cylindre Fc en r\u00e9sistances \u00e0 la compression cubique Rc.<\/p>\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-14e1a80 elementor-widget elementor-widget-image\" data-id=\"14e1a80\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 26-03-2024 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"626\" height=\"401\" src=\"https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/metodo-sonreb.jpg\" class=\"attachment-large size-large wp-image-1713\" alt=\"\" srcset=\"https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/metodo-sonreb.jpg 626w, https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/metodo-sonreb-300x192.jpg 300w\" sizes=\"(max-width: 626px) 100vw, 626px\" \/>\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-33 elementor-top-column elementor-element elementor-element-29c0423\" data-id=\"29c0423\" data-element_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-b860223 elementor-widget elementor-widget-image\" data-id=\"b860223\" data-element_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<img decoding=\"async\" width=\"498\" height=\"213\" src=\"https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/sclerometro-498x213-1.jpg\" class=\"attachment-large size-large wp-image-1722\" alt=\"\" srcset=\"https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/sclerometro-498x213-1.jpg 498w, https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/sclerometro-498x213-1-300x128.jpg 300w\" sizes=\"(max-width: 498px) 100vw, 498px\" \/>\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<div class=\"elementor-element elementor-element-9041da8 elementor-widget elementor-widget-image\" data-id=\"9041da8\" data-element_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<img decoding=\"async\" width=\"493\" height=\"211\" src=\"https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/apparecchio-per-indagine-ultrasonora-493x211-1.jpg\" class=\"attachment-large size-large wp-image-1716\" alt=\"\" srcset=\"https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/apparecchio-per-indagine-ultrasonora-493x211-1.jpg 493w, https:\/\/centrotest.com\/wp-content\/uploads\/2024\/07\/apparecchio-per-indagine-ultrasonora-493x211-1-300x128.jpg 300w\" sizes=\"(max-width: 493px) 100vw, 493px\" \/>\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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>M\u00c9THODE SONREB TECHNIQUE QUI A\u00c9ELIORE LA FIABILIT\u00c9 DES R\u00c9SULTATS POUR LES METHODES ULTRASONORES ET SCL\u00c9ROM\u00c9TRIQUES Previous slide Next slide LA M\u00c9THODE Le terme Sonreb , cr\u00e9\u00e9 en fusionnant les termes \u00ab Sonic \u00bb et \u00ab Rebound \u00bb, identifie les principales caract\u00e9ristiques de la technique de contr\u00f4le, qui combine la mesure de la vitesse de propagation [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2085,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-2013","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.2 - 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