{"id":5275,"date":"2022-11-01T01:49:19","date_gmt":"2022-11-01T01:49:19","guid":{"rendered":"http:\/\/tenabrix.com\/?p=5275"},"modified":"2023-06-03T01:17:37","modified_gmt":"2023-06-03T01:17:37","slug":"fiber-reinforced-concrete","status":"publish","type":"post","link":"https:\/\/tenabrix.com\/fr\/beton-arme-de-fibres\/","title":{"rendered":"Avantages du b\u00e9ton renforc\u00e9 de fibres"},"content":{"rendered":"
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B\u00e9ton renforc\u00e9 de fibres<\/strong> Le b\u00e9ton renforc\u00e9 de fibres de polypropyl\u00e8ne est un nouveau type de mat\u00e9riau composite qui s'est d\u00e9velopp\u00e9 rapidement dans le pays et \u00e0 l'\u00e9tranger au cours des derni\u00e8res ann\u00e9es. C'est le b\u00e9ton renforc\u00e9 de fibres de polypropyl\u00e8ne qui s'est d\u00e9velopp\u00e9 le plus rapidement. Il est largement utilis\u00e9 sur les autoroutes en raison de son excellente imperm\u00e9abilit\u00e9, de sa r\u00e9sistance au gel, de sa r\u00e9sistance aux chocs et aux impacts, dans les a\u00e9roports, les ponts, l'ing\u00e9nierie hydraulique, la construction et d'autres domaines. Le b\u00e9ton renforc\u00e9 de fibres est un m\u00e9lange externe de fibres ajout\u00e9es au b\u00e9ton, et les fibres comprennent des fibres d'acier, de polyester et des fibres composites.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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L'ajout de fibres longues modifie les propri\u00e9t\u00e9s du b\u00e9ton frais en fonction du type de mat\u00e9riau fibreux utilis\u00e9. Il existe quatre cat\u00e9gories de fibres g\u00e9n\u00e9ralement utilis\u00e9es dans la production de b\u00e9ton renforc\u00e9 par des fibres : les fibres d'acier, les fibres de verre, les fibres synth\u00e9tiques et les fibres naturelles.<\/p>\t\t\t\t\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

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Nous nous concentrons ici sur Fibres synth\u00e9tiques Tenabrix\u00ae ou fibres de polypropyl\u00e8ne.<\/strong> Il s'agit d'un type de thermoplastique. Le polypropyl\u00e8ne partage de nombreuses caract\u00e9ristiques avec le poly\u00e9thyl\u00e8ne, avec des propri\u00e9t\u00e9s de durcissement am\u00e9lior\u00e9es, une meilleure r\u00e9sistance \u00e0 la flexion et une plus grande r\u00e9sistance \u00e0 la chaleur. En outre, la fibre de polypropyl\u00e8ne Tenabrix\u00ae pr\u00e9sente une r\u00e9sistance \u00e9lev\u00e9e aux produits chimiques tels que les acides et les solvants organiques et conf\u00e8re des propri\u00e9t\u00e9s similaires \u00e0 celles du b\u00e9ton.<\/p>\t\t\t\t\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

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\n\t\t\t\t\t\tMicrofibre synth\u00e9tique en polypropyl\u00e8ne\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\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
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\n\t\t\t\t\t\tMacrofibre synth\u00e9tique en polypropyl\u00e8ne\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\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
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\n\t\t\t\t\t\tPolypropyl\u00e8ne Fibre fibr\u00e9e\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\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
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La fraction volumique des fibres utilis\u00e9es dans le b\u00e9ton est g\u00e9n\u00e9ralement comprise entre 0,1% et 5%. L'importance de ce rapport volum\u00e9trique est principalement d\u00e9termin\u00e9e par la facilit\u00e9 de m\u00e9lange et le sc\u00e9nario d'application du projet. Par exemple, les contraintes secondaires caus\u00e9es par le retrait du b\u00e9ton et les changements de temp\u00e9rature sont g\u00e9n\u00e9ralement contr\u00f4l\u00e9es avec de faibles doses de fibres (0,1% \u00e0 0,3% par volume). Lorsque le dosage en fibres d\u00e9passe 0,3%, par rapport \u00e0 un b\u00e9ton ordinaire sans fibres, la r\u00e9ponse m\u00e9canique du b\u00e9ton renforc\u00e9 par des fibres sera significativement diff\u00e9rente, ce qui se manifeste principalement dans sa capacit\u00e9 portante apr\u00e8s fissuration. La capacit\u00e9 du b\u00e9ton renforc\u00e9 de fibres \u00e0 absorber l'\u00e9nergie apr\u00e8s la fissuration est appel\u00e9e \"t\u00e9nacit\u00e9\". Lorsque des doses plus \u00e9lev\u00e9es de fibres sont ajout\u00e9es au b\u00e9ton, outre sa r\u00e9sistance apr\u00e8s fissuration, le b\u00e9ton renforc\u00e9 de fibres pr\u00e9sente des propri\u00e9t\u00e9s de renforcement de la d\u00e9formation. En d'autres termes, le mat\u00e9riau composite peut r\u00e9sister \u00e0 des contraintes de traction plus importantes que celles que le b\u00e9ton ordinaire devrait subir.<\/p>\t\t\t\t\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

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[taxopress_postterms id=\"1\"]<\/div>\n\t\t\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>","protected":false},"excerpt":{"rendered":"

Le b\u00e9ton renforc\u00e9 par des fibres est un nouveau type de mat\u00e9riau composite qui s'est rapidement d\u00e9velopp\u00e9 dans le pays et \u00e0 l'\u00e9tranger au cours des derni\u00e8res ann\u00e9es. C'est le b\u00e9ton renforc\u00e9 de fibres de polypropyl\u00e8ne qui s'est d\u00e9velopp\u00e9 le plus rapidement. Il est largement utilis\u00e9 sur les autoroutes en raison de son excellente imperm\u00e9abilit\u00e9, de sa r\u00e9sistance au gel, de sa r\u00e9sistance aux chocs et aux impacts, dans les a\u00e9roports, les ponts, l'ing\u00e9nierie hydraulique, la construction et d'autres [...]<\/p>","protected":false},"author":1,"featured_media":5281,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[7],"tags":[40,30,31,50],"class_list":["post-5275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-post","tag-bridges-tunnels-industrial-civil-buildings-highways","tag-fiber-reinforced-concrete","tag-tenabrix-polypropylene-fiber","tag-tenabrix-synthetic-fibers"],"_links":{"self":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/5275","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/comments?post=5275"}],"version-history":[{"count":22,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/5275\/revisions"}],"predecessor-version":[{"id":5761,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/5275\/revisions\/5761"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/media\/5281"}],"wp:attachment":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/media?parent=5275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/categories?post=5275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/tags?post=5275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}