{"id":2011,"date":"2024-07-26T17:27:10","date_gmt":"2024-07-26T15:27:10","guid":{"rendered":"https:\/\/centrotest.roiweb.eu\/sonreb-method\/"},"modified":"2024-08-11T16:41:01","modified_gmt":"2024-08-11T14:41:01","slug":"sonreb-method","status":"publish","type":"page","link":"https:\/\/centrotest.com\/en\/non-destructive-testing\/sonreb-method\/","title":{"rendered":"Sonreb method"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2011\" class=\"elementor elementor-2011 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\" data-id=\"565845f\" 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.elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h5 class=\"elementor-heading-title elementor-size-default\">SONREB METHOD<\/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 THAT IMPROVES RESULTS&#8217; RELIABILITY FOR ULTRASONIC AND SCLEROMETRIC METHODS<\/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=\"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\">Previous slide<\/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\">Next slide<\/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>THE METHOD<\/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>The term <strong> Sonreb <\/strong>, created merging the terms &#8220;Sonic&#8221; and &#8220;Rebound&#8221;, identifies the salient features of the control technique, which combines <strong>measuring ultrasound propagation speed <\/strong> with <strong> measuring the sclerometric rebound index<\/strong>. This combined methodology arouses interest because, compared to other methods of non-destructive or destructive control, it has advantages like <strong> ease <\/strong> and <strong> rapid execution <\/strong>. Sclerometric and ultrasonic tests, although useful for the concrete&#8217;s characteristics assessment, can return data influenced by factors that can make them less reliable when considered separately.<\/p>\n<p>Current regulations allow that the destructive tests can be integrated by a series of non-destructive tests, of documented reliability, provided that the results are calibrated on the basis of those obtained by destructive tests. In situ investigations are needed to define the knowledge level that the project manager will adopt, on the basis of which he will determine the confidence factor to be taken in the analysis and testing.<\/p>\n<p>If the results ensures the presence of <strong> repeatability values \u200b\u200b<\/strong> at different levels of the building, this establishes the opportunity to quantify the number of destructive and non-destructive tests.<\/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>PRINCIPLE AND TEST PROCEDURES<\/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>Application of the Sonreb method requires evaluation of local values \u200b\u200bof ultrasonic speed V and of rebound index S, from which you can get an estimate of the strength of Rc concrete in site, using expressions like:<\/p>\n<p><em>Rc = a\u22c5Sb\u22c5Vc<\/em><\/p>\n<p>&#8211; <strong>Rc<\/strong> is the cubic compressive strength in [MPa];<br \/>\n&#8211; <strong>S<\/strong> is the sclerometric index;<br \/>\n&#8211; <strong>V<\/strong> is the ultrasonic speed [m\/s];<br \/>\n&#8211; coefficients a, b, c allow to best correlate the experimental direct data. Consequently, they differ in a significant way in terms of result.<\/p>\n<p>For the Sonreb combined method, the dependent variable is Rcub, while the independent variables are respectively the average sclerometric index Ir and the ultrasound propagation speed Vus. The correlation that follows is expressed in the following way:<\/p>\n<p><em>Rcub = a\u00b7Ir\u00b7b\u00b7Vus\u00b7c [MPa, m\/s]<\/em><\/p>\n<p>Parameters a, b and c represent the values \u200b\u200bto be determined to calibrate the correlation law to the specific case. Having now available, in addition to non-destructive parameters, also the laboratory values, even for the same structural element, it&#8217;s interesting to see in what position is placed (with respect to the curves created with the expressions of the literature) the curve that we can call of laboratory. Of course to do this we need to previously have turned the cylinder compression resistances Fc in cubic compression resistances 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>SONREB METHOD TECHNIQUE THAT IMPROVES RESULTS&#8217; RELIABILITY FOR ULTRASONIC AND SCLEROMETRIC METHODS Previous slide Next slide THE METHOD The term Sonreb , created merging the terms &#8220;Sonic&#8221; and &#8220;Rebound&#8221;, identifies the salient features of the control technique, which combines measuring ultrasound propagation speed with measuring the sclerometric rebound index. This combined methodology arouses interest because, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2083,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-2011","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Sonreb method - CENTROTEST Terni<\/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:\/\/centrotest.com\/controlli-non-distruttivi\/prove-non-distruttive-cemento-armato\/metodo-sonreb\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sonreb method - CENTROTEST Terni\" \/>\n<meta property=\"og:description\" content=\"SONREB METHOD TECHNIQUE THAT IMPROVES RESULTS&#8217; RELIABILITY FOR ULTRASONIC AND SCLEROMETRIC METHODS Previous slide Next slide THE METHOD The term Sonreb , created merging the terms &#8220;Sonic&#8221; and &#8220;Rebound&#8221;, identifies the salient features of the control technique, which combines measuring ultrasound propagation speed with measuring the sclerometric rebound index. 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