{"id":7196,"date":"2025-06-09T06:06:45","date_gmt":"2025-06-09T06:06:45","guid":{"rendered":"https:\/\/tenabrix.com\/?page_id=7196"},"modified":"2025-08-20T09:24:51","modified_gmt":"2025-08-20T09:24:51","slug":"pp-fiber-for-shotcrete","status":"publish","type":"page","link":"https:\/\/tenabrix.com\/fr\/solutions-de-projet\/fibre-pp-pour-beton-projete\/","title":{"rendered":"B\u00e9ton projet\u00e9"},"content":{"rendered":"
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Fibres PP pour b\u00e9ton projet\u00e9<\/h1>\t\t\t\t<\/div>\n\t\t\t\t
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  3. B\u00e9ton projet\u00e9<\/span><\/li>\t\t\t\t\t<\/ol>\r\n\t\t\t\t\t
    <\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t\t<\/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
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    L'avantage des fibres PP 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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    Dans le b\u00e9ton projet\u00e9, la fibre PP peut efficacement inhiber les fissures de retrait plastique et am\u00e9liorer l'int\u00e9grit\u00e9 structurelle, en particulier pour le rev\u00eatement des tunnels, le soutien des pentes et d'autres projets.<\/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 de polypropyl\u00e8ne ajout\u00e9es<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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    \n Type de projet <\/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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    Soutien conventionnel<\/p> <\/div>\n\n <\/td>\n

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    0,9~1,2 kg\/m\u00b3<\/p> <\/div>\n\n <\/td>\n

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    12-19mm<\/p> <\/div>\n\n <\/td>\n

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    Exigences \u00e9lev\u00e9es en mati\u00e8re d'anti-fissuration<\/p> <\/div>\n\n <\/td>\n

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    1,5~2,0 kg\/m\u00b3<\/p> <\/div>\n\n <\/td>\n

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    19~25mm<\/p> <\/div>\n\n <\/td>\n

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    B\u00e9ton ignifug\u00e9<\/p> <\/div>\n\n <\/td>\n

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    2,0~2,5 kg\/m\u00b3<\/p> <\/div>\n\n <\/td>\n

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    25~40mm<\/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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    Note : Le dosage doit \u00eatre v\u00e9rifi\u00e9 par un m\u00e9lange d'essai et ne doit pas \u00eatre remplac\u00e9 par un renforcement structurel !<\/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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    Fibre de polypropyl\u00e8ne recommand\u00e9e<\/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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    Comment r\u00e9soudre le probl\u00e8me de la r\u00e9silience des fibres ?<\/h2>\n <\/div>\n
    \n V\u00e9rifier la pression du vent : une pression du vent trop \u00e9lev\u00e9e entra\u00eene un rebond, la r\u00e9gler en dessous de 0,5MPa.
    \n\nOptimiser la proportion : ajouter de la poudre de micro-silice (3~5%) ou de l'\u00e9ther de cellulose pour am\u00e9liorer l'adh\u00e9rence. <\/div>\n <\/div>\n
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    Qu'en est-il des fibres expos\u00e9es \u00e0 la surface de la couche de pulv\u00e9risation ?<\/h2>\n <\/div>\n
    \n Ajuster l'angle de pulv\u00e9risation \u00e0 la surface verticale pulv\u00e9ris\u00e9e, et presser l\u00e9g\u00e8rement la surface avec une truelle en acier avant la pulv\u00e9risation finale.
    \n\nSi la quantit\u00e9 de m\u00e9lange est >2.0kg\/m\u00b3, il est n\u00e9cessaire d'augmenter la couche de protection du mortier (\u226510mm). <\/div>\n <\/div>\n
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    Que puis-je faire pour \u00e9viter que les fibres n'obstruent les trompes ?<\/h2>\n <\/div>\n
    \n Pr\u00e9vention : Utiliser des fibres dont le rapport L\/D est \u2264 100 (par exemple, longueur 19 mm \/ diam\u00e8tre 0,03 mm).
    \n\nEn cas d'urgence : arr\u00eater imm\u00e9diatement la pulv\u00e9risation, nettoyer le tuyau avec du vent \u00e0 haute pression et interdire strictement l'injection d'eau ! <\/div>\n <\/div>\n
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    L'effet anti-fissuration n'est pas \u00e9vident ?<\/h2>\n <\/div>\n
    \n V\u00e9rifier la dispersion des fibres : prendre le bloc de b\u00e9ton durci et l'\u00e9craser, observer si la distribution des fibres est uniforme.
    \n\nV\u00e9rifier la pr\u00e9cision de la quantit\u00e9 de m\u00e9lange : l'erreur de chaque carr\u00e9 de b\u00e9ton doit \u00eatre <\u00b10,1kg. <\/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":"

    PP Fibers For Shotcrete The Advantage of PP 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 […]<\/p>","protected":false},"author":3,"featured_media":0,"parent":1921,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"rank_math_lock_modified_date":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","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":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","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":""},"class_list":["post-7196","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/pages\/7196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"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=7196"}],"version-history":[{"count":23,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/pages\/7196\/revisions"}],"predecessor-version":[{"id":7603,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/pages\/7196\/revisions\/7603"}],"up":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/pages\/1921"}],"wp:attachment":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/media?parent=7196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}