{"id":7464,"date":"2025-08-16T02:30:11","date_gmt":"2025-08-16T02:30:11","guid":{"rendered":"https:\/\/tenabrix.com\/?p=7464"},"modified":"2025-08-16T02:36:14","modified_gmt":"2025-08-16T02:36:14","slug":"fibres-dacier-dans-le-beton-projete","status":"publish","type":"post","link":"https:\/\/tenabrix.com\/fr\/fibres-dacier-dans-le-beton-projete\/","title":{"rendered":"Fibres d'acier dans le b\u00e9ton projet\u00e9"},"content":{"rendered":"
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L'avantage des fibres d'acier dans le b\u00e9ton projet\u00e9<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Les fibres TenaBrix\u00ae pour le b\u00e9ton projet\u00e9 conforme \u00e0 la norme ASTM C 1116, Standard Specification for Fiber-Reinforced Shotcrete, sont sp\u00e9cifiquement utilis\u00e9es pour contr\u00f4ler et att\u00e9nuer la fissuration par retrait plastique, augmenter la durabilit\u00e9 de la surface, la r\u00e9sistance \u00e0 l'impact et \u00e0 l'abrasion.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Les produits TenaBrix\u00ae, y compris les fibres synth\u00e9tiques macro\/micro, fournissent un renforcement tridimensionnel pour les applications en surface et souterraines.\u00a0<\/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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Champ d'application<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Soutien initial des tunnels, soutien des pentes, tunnel de mine, renforcement des b\u00e2timents et autres projets de b\u00e9ton par pulv\u00e9risation humide\/s\u00e8che.<\/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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Quantit\u00e9 recommand\u00e9e de fibres d'acier ajout\u00e9es<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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\n Type <\/div><\/th>\n
\n Montant suppl\u00e9mentaire recommand\u00e9 <\/div><\/th>\n
\n Recommandations relatives aux sp\u00e9cifications des fibres <\/div><\/th>\n <\/tr><\/thead>
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Support primaire du tunnel<\/p> <\/div>\n\n <\/td>\n

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25~40 kg\/m\u00b3<\/p> <\/div>\n\n <\/td>\n

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Longueur 30~35mm, Diam\u00e8tre 0.5~0.75mm<\/p> <\/div>\n\n <\/td>\n

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R\u00e9paration en couche mince (<100mm)<\/p> <\/div>\n\n <\/td>\n

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35-45 kg\/m\u00b3<\/p> <\/div>\n\n <\/td>\n

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Longueur 25~30mm<\/p> <\/div>\n\n <\/td>\n

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Construction \u00e0 fort impact<\/p> <\/div>\n\n <\/td>\n

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40-60 kg\/m\u00b3<\/p> <\/div>\n\n <\/td>\n

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Longueur 35~50mm, Type de crochet d'extr\u00e9mit\u00e9<\/p> <\/div>\n\n <\/td>\n <\/tbody><\/table> <\/div>\n\n\n\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Le dosage sp\u00e9cifique doit \u00eatre v\u00e9rifi\u00e9 par un m\u00e9lange d'essai pour r\u00e9pondre aux exigences de r\u00e9sistance \u00e0 la flexion du \"b\u00e9ton de fibres d'acier\" (JG\/T 472).<\/h4>\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\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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Autres fibres recommand\u00e9es <\/h2>\t\t\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<\/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
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\n\t\t\t\t\t\tFibre de polypropyl\u00e8ne 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
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\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\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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FAQ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Fibres expos\u00e9es \u00e0 la surface de la couche de pulv\u00e9risation<\/h2>\n <\/div>\n
\n Raison:Angle de pulv\u00e9risation incorrect ou truellage apr\u00e8s la prise finale.
\nSolution:R\u00e9glage de l'angle du pistolet ; calandrage avant le r\u00e9glage initial <\/div>\n <\/div>\n
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Colmatage fr\u00e9quent des canalisations<\/h2>\n <\/div>\n
\n Raison:Agglutination de fibres ou rapport de sable trop faible.
\nSolution:Am\u00e9liorer la dispersion des fibres ; augmenter le taux de sable 2%~3% <\/div>\n <\/div>\n
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Fissuration pr\u00e9coce<\/h2>\n <\/div>\n
\n Raison:Distribution in\u00e9gale de la fibre ou entretien insuffisant.
\nSolution:Optimiser le processus de m\u00e9lange ; couvrir et entretenir dans les 6 heures suivant la pulv\u00e9risation. <\/div>\n <\/div>\n
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Fluctuation de l'intensit\u00e9 >15%<\/h2>\n <\/div>\n
\n Raison:D\u00e9viation du dosage ou rapport eau-ciment non contr\u00f4l\u00e9.
\nSolution:Balance \u00e0 fibres calibr\u00e9e ; contr\u00f4le strict de l'eau <\/div>\n <\/div>\n \n <\/div>\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>","protected":false},"excerpt":{"rendered":"

The Advantage of Steel Fibers in Shotcrete TenaBrix\u00ae fibers for Shotcrete that complies with ASTM C 1116, Standard Specification for Fiber-Reinforced Shotcrete, and are specifically used to control and mitigate plastic shrinkage cracking, increase surface durability, impact, and abrasion resistance. TenaBrix\u00ae products including macro\/micro synthetic fibers provide three-dimensional reinforcement for both above-ground and below ground […]<\/p>\n","protected":false},"author":3,"featured_media":7470,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"set","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":[],"class_list":["post-7464","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-post"],"_links":{"self":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/7464","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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/comments?post=7464"}],"version-history":[{"count":4,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/7464\/revisions"}],"predecessor-version":[{"id":7469,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/7464\/revisions\/7469"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/media\/7470"}],"wp:attachment":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/media?parent=7464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/categories?post=7464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/tags?post=7464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}