{"id":9169,"date":"2026-07-10T08:03:57","date_gmt":"2026-07-10T08:03:57","guid":{"rendered":"https:\/\/tenabrix.com\/?p=9169"},"modified":"2026-07-23T03:30:51","modified_gmt":"2026-07-23T03:30:51","slug":"pp-pet-et-fibres-pan-pour-le-beton","status":"publish","type":"post","link":"https:\/\/tenabrix.com\/fr\/pp-pet-et-fibres-pan-pour-le-beton\/","title":{"rendered":"Polypropyl\u00e8ne, polyester ou fibres PAN pour le b\u00e9ton : quel mat\u00e9riau choisir ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"9169\" class=\"elementor elementor-9169\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6d989c4 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6d989c4\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&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-50 elementor-top-column elementor-element elementor-element-a995942\" data-id=\"a995942\" data-element_type=\"column\" data-e-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-def308e elementor-widget elementor-widget-text-editor\" data-id=\"def308e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Le choix de la fibre synth\u00e9tique adapt\u00e9e au b\u00e9ton ne se r\u00e9sume pas \u00e0 une solution unique valable pour tous les cas. Le polypropyl\u00e8ne (PP), le polyester (PET) et le polyacrylonitrile (PAN) sont les trois fibres synth\u00e9tiques les plus couramment utilis\u00e9es dans la construction moderne en b\u00e9ton, mais chacune pr\u00e9sente une composition chimique, des caract\u00e9ristiques de performance et des applications id\u00e9ales fondamentalement diff\u00e9rentes.<\/p><p>Si vous vous demandez quelle fibre choisir pour votre prochain projet (PP, PET ou PAN), ce comparatif vous explique en d\u00e9tail tout ce que vous devez savoir.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4fb78a2 elementor-widget elementor-widget-heading\" data-id=\"4fb78a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Que sont les fibres synth\u00e9tiques pour le b\u00e9ton ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8340674 elementor-widget elementor-widget-text-editor\" data-id=\"8340674\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Les fibres synth\u00e9tiques pour b\u00e9ton sont des fibres artificielles ajout\u00e9es aux m\u00e9langes de b\u00e9ton afin d'en am\u00e9liorer les performances. Contrairement aux armatures en acier, les fibres synth\u00e9tiques sont l\u00e9g\u00e8res, r\u00e9sistantes \u00e0 la corrosion et faciles \u00e0 incorporer.<\/p><p>Ils sont couramment utilis\u00e9s dans :<\/p><ul><li>Sols en b\u00e9ton<\/li><li>B\u00e9ton projet\u00e9<\/li><li>Chauss\u00e9es<\/li><li>B\u00e9ton pr\u00e9fabriqu\u00e9<\/li><li>Construction de tunnels<\/li><li>Structures industrielles<\/li><\/ul><p>L'objectif principal des fibres synth\u00e9tiques n'est pas de remplacer les armatures traditionnelles dans tous les cas, mais d'offrir une protection suppl\u00e9mentaire contre la fissuration et d'am\u00e9liorer la durabilit\u00e9 du b\u00e9ton.<\/p><p>Parmi les fibres synth\u00e9tiques courantes, on peut citer :<\/p><ul><li><a href=\"https:\/\/tenabrix.com\/fr\/types-de-fibres\/microfibre-synthetique-en-polypropylene\/\" target=\"_blank\" rel=\"noopener\">Fibre de polypropyl\u00e8ne<\/a><\/li><li><a href=\"https:\/\/tenabrix.com\/fr\/fibre-de-polyester\/\" target=\"_blank\" rel=\"noopener\">Fibre de polyester<\/a><\/li><li><a href=\"https:\/\/tenabrix.com\/fr\/types-de-fibres\/fibre-de-polyacrylonitrile\/\" target=\"_blank\" rel=\"noopener\">Fibre PAN<\/a><\/li><\/ul><p>Chaque mat\u00e9riau poss\u00e8de des propri\u00e9t\u00e9s uniques qui le rendent adapt\u00e9 \u00e0 diff\u00e9rentes applications.<\/p><h3><strong>Pourquoi le choix des mat\u00e9riaux est-il important dans le domaine du renforcement par fibres synth\u00e9tiques ?<\/strong><\/h3><p>Les fibres synth\u00e9tiques ne sont pas toutes issues du m\u00eame polym\u00e8re sous des appellations diff\u00e9rentes. Le polym\u00e8re de base d\u00e9termine :<\/p><ul><li><strong>R\u00e9sistance \u00e0 la traction et module de elasticit\u00e9<\/strong>\u00a0\u2014 quelle charge la fibre peut supporter<\/li><li><strong>R\u00e9sistance chimique<\/strong>\u00a0\u2014 si la fibre r\u00e9siste dans des environnements hostiles<\/li><li><strong>R\u00e9sistance aux alcalis<\/strong>\u00a0\u2014 ce qui est essentiel, car le b\u00e9ton a un pH compris entre 12 et 13<\/li><li><strong>Stabilit\u00e9 thermique<\/strong>\u00a0\u2014 performances \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es<\/li><li><strong>Adh\u00e9rence \u00e0 la matrice de ciment<\/strong>\u00a0\u2014 d\u00e9termine l'efficacit\u00e9 du pontage des fissures<\/li><li><strong>Co\u00fbt au kilogramme<\/strong>\u00a0\u2014 a une incidence directe sur la rentabilit\u00e9 du projet<\/li><\/ul><p>Choisir un mat\u00e9riau inadapt\u00e9 peut faire la diff\u00e9rence entre une dur\u00e9e de vie de 30 ans et l'apparition de fissures pr\u00e9matur\u00e9es d\u00e8s la premi\u00e8re ann\u00e9e.<\/p><p><!-- notionvc: 1893adf1-0292-4c15-ab9e-ccd41f2a97f6 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bbf2a49 elementor-widget elementor-widget-heading\" data-id=\"bbf2a49\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Fibre de polypropyl\u00e8ne pour le renforcement du b\u00e9ton<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a80c9e elementor-widget elementor-widget-text-editor\" data-id=\"1a80c9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Qu'est-ce que la fibre de polypropyl\u00e8ne (PP) ?<\/strong><\/h3><p>Le polypropyl\u00e8ne est la fibre synth\u00e9tique la plus couramment utilis\u00e9e dans le secteur du b\u00e2timent. Il s'agit d'un polym\u00e8re thermoplastique fabriqu\u00e9 \u00e0 partir du monom\u00e8re de propyl\u00e8ne, r\u00e9put\u00e9 pour sa l\u00e9g\u00e8ret\u00e9, son rapport qualit\u00e9-prix avantageux et son inertie chimique.<\/p><h3><strong>Caract\u00e9ristiques principales<\/strong><\/h3><table><thead><tr><th>Propri\u00e9t\u00e9<\/th><th>Valeur typique<\/th><\/tr><\/thead><tbody><tr><td>Composition<\/td><td>Polypropyl\u00e8ne<\/td><\/tr><tr><td>Densit\u00e9<\/td><td>0,91 g\/cm\u00b3<\/td><\/tr><tr><td>R\u00e9sistance \u00e0 la traction<\/td><td>\u2265 500 MPa<\/td><\/tr><tr><td>Module d'\u00e9lasticit\u00e9<\/td><td>\u2265 4000 MPa<\/td><\/tr><tr><td>Point de fusion<\/td><td>160 \u00b0C<\/td><\/tr><tr><td>R\u00e9sistance aux alcalins<\/td><td>Excellent<\/td><\/tr><\/tbody><\/table><h3><strong>Formulaires disponibles<\/strong><\/h3><ul><li><strong>Monofilament<\/strong>\u00a0\u2014 fibres monofilaments, de 6 \u00e0 19 mm, destin\u00e9es \u00e0 limiter le retrait du plastique<\/li><li><strong>Fibrill\u00e9<\/strong>\u00a0\u2014 des fibres obtenues par d\u00e9coupage de film qui se d\u00e9ploient pour former une structure en forme de filet lors du m\u00e9lange<\/li><li><strong>Macro synth\u00e9tique<\/strong>\u00a0\u2014 fibres gaufr\u00e9es et profil\u00e9es (40 \u00e0 60 mm) destin\u00e9es au renforcement structurel<\/li><\/ul><h3>Avantages de la fibre de polypropyl\u00e8ne<\/h3><p><strong>1. Excellent contr\u00f4le des fissures :<\/strong> Les fibres de polypropyl\u00e8ne r\u00e9duisent les fissures de retrait du plastique en r\u00e9partissant uniform\u00e9ment les contraintes dans le b\u00e9ton, ce qui am\u00e9liore la qualit\u00e9 de la surface et la durabilit\u00e9.<\/p><p><strong>2. Haute r\u00e9sistance chimique :<\/strong> La fibre de PP r\u00e9siste \u00e0 l'eau, aux alcalis, aux acides et \u00e0 la plupart des produits chimiques, ce qui la rend adapt\u00e9e aux environnements difficiles tels que les stations d'\u00e9puration, les sols industriels et les ouvrages maritimes.<\/p><p><strong>3. L\u00e9ger et facile \u00e0 m\u00e9langer :<\/strong> Gr\u00e2ce \u00e0 sa faible densit\u00e9 et \u00e0 l'absence de risque de corrosion, la fibre de polypropyl\u00e8ne est facile \u00e0 transporter, \u00e0 m\u00e9langer et \u00e0 manipuler par rapport \u00e0 la fibre d'acier.<\/p><h3><strong>Les meilleures applications<\/strong><\/h3><ul><li>Dalles sur sol pour b\u00e2timents r\u00e9sidentiels et commerciaux<\/li><li>Rev\u00eatements de sol industriels (qualit\u00e9 macro)<\/li><li>\u00c9l\u00e9ments pr\u00e9fabriqu\u00e9s<\/li><li>B\u00e9ton projet\u00e9<\/li><li>Toute application dans laquelle\u00a0<strong>rentabilit\u00e9<\/strong>\u00a0est le principal moteur<\/li><\/ul><p><!-- notionvc: 27af5149-18cc-48ee-b243-4a5697760b48 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e1c61b2 e-grid e-con-boxed e-con e-parent\" data-id=\"e1c61b2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ab5a7f3 elementor-widget elementor-widget-image\" data-id=\"ab5a7f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/types-de-fibres\/microfibre-synthetique-en-polypropylene\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/ppfiber-12mm-42-1024x640.webp\" class=\"attachment-large size-large wp-image-8047\" alt=\"Fibre de polypropyl\u00e8ne de 12 mm\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/ppfiber-12mm-42-1024x640.webp 1024w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/ppfiber-12mm-42-300x188.webp 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/ppfiber-12mm-42-768x480.webp 768w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/ppfiber-12mm-42-1536x960.webp 1536w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/ppfiber-12mm-42-18x12.webp 18w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/ppfiber-12mm-42.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c40b8de elementor-widget elementor-widget-heading\" data-id=\"c40b8de\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Fibre de polyester pour l'armature du b\u00e9ton<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6f6fec elementor-widget elementor-widget-text-editor\" data-id=\"d6f6fec\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Qu'est-ce que la fibre de polyester (PET) ?<\/strong><\/h3><p>La fibre de polyester est fabriqu\u00e9e \u00e0 partir de poly\u00e9thyl\u00e8ne t\u00e9r\u00e9phtalate, le m\u00eame polym\u00e8re que celui utilis\u00e9 pour les bouteilles de boissons. Dans le b\u00e9ton, la fibre de PET offre une r\u00e9sistance \u00e0 la traction et un module de plus haut niveau que le PP, ainsi que de meilleures performances \u00e0 haute temp\u00e9rature.<\/p><p><strong>Caract\u00e9ristiques principales<\/strong><\/p><table><thead><tr><th>Propri\u00e9t\u00e9<\/th><th>Valeur typique<\/th><\/tr><\/thead><tbody><tr><td>Composition<\/td><td>Acide dibasique organique et diol<\/td><\/tr><tr><td>Diam\u00e8tre<\/td><td>12, 15, 18 \u03bcm<\/td><\/tr><tr><td>R\u00e9sistance \u00e0 la traction<\/td><td>\u2265 1100 MPa<\/td><\/tr><tr><td>Module d'\u00e9lasticit\u00e9<\/td><td>\u2265 9000Mpa<\/td><\/tr><tr><td>Point de fusion<\/td><td>255-265 \u2103<\/td><\/tr><tr><td>R\u00e9sistance aux alcalins<\/td><td>Bon (l\u00e9g\u00e8rement en dessous du PP)<\/td><\/tr><\/tbody><\/table><h3><strong>Principal avantage de la fibre de polyester<\/strong><\/h3><ol><li><strong>R\u00e9sistance \u00e0 la traction plus \u00e9lev\u00e9e<\/strong>: Par rapport \u00e0 la fibre de polypropyl\u00e8ne, la fibre de polyester pr\u00e9sente une r\u00e9sistance \u00e0 la traction sup\u00e9rieure, ce qui aide le b\u00e9ton \u00e0 r\u00e9sister aux contraintes de traction, \u00e0 la propagation des fissures et aux dommages superficiels.<\/li><li><strong>Bonne r\u00e9sistance \u00e0 l'abrasion<\/strong>: la fibre de polyester offre une excellente r\u00e9sistance \u00e0 l'usure, ce qui la rend id\u00e9ale pour les zones \u00e0 forte fr\u00e9quentation telles que les sols industriels, les entrep\u00f4ts, les chauss\u00e9es et les infrastructures de transport.<\/li><li><strong>Bonne stabilit\u00e9 dimensionnelle<\/strong>: La fibre de polyester conserve sa forme malgr\u00e9 les variations de temp\u00e9rature, garantissant ainsi des performances stables \u00e0 long terme dans des applications exigeantes.<\/li><\/ol><h3><strong>Les meilleures applications<\/strong><\/h3><ul><li>Renforcement du b\u00e9ton bitumineux (lorsqu'un point de fusion plus \u00e9lev\u00e9 est essentiel)<\/li><li>\u00c9l\u00e9ments pr\u00e9fabriqu\u00e9s minces n\u00e9cessitant une r\u00e9sistance initiale \u00e9lev\u00e9e<\/li><li>Sols industriels n\u00e9cessitant une plus grande rigidit\u00e9<\/li><li>Syst\u00e8mes hybrides \u00e0 base de macrofibres de PP<\/li><li>Chantier dans un climat chaud o\u00f9 le PP risque de ramollir<\/li><\/ul><p><!-- notionvc: 92779493-e717-44a3-894e-cf416cb43c3a --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d53230c e-grid e-con-boxed e-con e-parent\" data-id=\"d53230c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c4bfb35 elementor-widget elementor-widget-image\" data-id=\"c4bfb35\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/fibre-de-polyester\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/high-tensile-pet-fiber-1024x640.webp\" class=\"attachment-large size-large wp-image-7822\" alt=\"fibre haute r\u00e9sistance pour animaux de compagnie\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/high-tensile-pet-fiber-1024x640.webp 1024w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/high-tensile-pet-fiber-300x188.webp 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/high-tensile-pet-fiber-768x480.webp 768w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/high-tensile-pet-fiber-1536x960.webp 1536w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/high-tensile-pet-fiber-18x12.webp 18w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/high-tensile-pet-fiber.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-81e7d01 elementor-widget elementor-widget-heading\" data-id=\"81e7d01\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Fibre PAN pour l'armature du b\u00e9ton<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e96d3d elementor-widget elementor-widget-text-editor\" data-id=\"2e96d3d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Qu'est-ce que la fibre PAN (polyacrylonitrile) ?<\/strong><\/h3><p>La fibre PAN est le choix haut de gamme parmi les fibres synth\u00e9tiques pour b\u00e9ton. Fabriqu\u00e9e \u00e0 partir d'un polym\u00e8re d'acrylonitrile, elle se distingue notamment par son exceptionnelle r\u00e9sistance chimique, sa stabilit\u00e9 \u00e0 haute temp\u00e9rature et sa forte adh\u00e9rence \u00e0 la matrice de ciment.<\/p><p><strong>Caract\u00e9ristiques principales<\/strong><\/p><table><thead><tr><th>Propri\u00e9t\u00e9<\/th><th>Valeur typique<\/th><\/tr><\/thead><tbody><tr><td>Composition<\/td><td>100% Polyacrylonitrile<\/td><\/tr><tr><td>Diam\u00e8tre \u00e9quivalent<\/td><td>14-18 \u03bcm<\/td><\/tr><tr><td>R\u00e9sistance \u00e0 la traction<\/td><td>\u2265 500 MPa<\/td><\/tr><tr><td>Module d'\u00e9lasticit\u00e9<\/td><td>\u2265 4000 MPa<\/td><\/tr><tr><td>R\u00e9sistance \u00e0 la chaleur<\/td><td>\u2265 200 \u2103<\/td><\/tr><tr><td>R\u00e9sistance aux alcalins<\/td><td>Excellent<\/td><\/tr><\/tbody><\/table><h3>Avantages de la fibre PAN<\/h3><ol><li><p><strong>Excellentes performances m\u00e9caniques :<\/strong> Les fibres PAN offrent une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la traction, une grande t\u00e9nacit\u00e9 et une bonne r\u00e9sistance \u00e0 la fissuration, ce qui am\u00e9liore la capacit\u00e9 du b\u00e9ton \u00e0 supporter des charges r\u00e9p\u00e9t\u00e9es et des chocs.<\/p><\/li><li><p><strong>Durabilit\u00e9 exceptionnelle<\/strong>: Gr\u00e2ce \u00e0 son excellente r\u00e9sistance aux temp\u00e9ratures extr\u00eames, aux cycles de gel-d\u00e9gel et aux contraintes m\u00e9caniques, la fibre PAN est adapt\u00e9e aux tunnels, aux ouvrages miniers et aux applications de b\u00e9ton haute performance.<\/p><\/li><li><p><strong>Am\u00e9lioration de la t\u00e9nacit\u00e9 du b\u00e9ton<\/strong>: La fibre PAN aide le b\u00e9ton \u00e0 absorber l'\u00e9nergie apr\u00e8s la formation de fissures, ce qui am\u00e9liore sa r\u00e9sistance aux chocs, sa durabilit\u00e9 et sa dur\u00e9e de vie.<\/p><\/li><\/ol><h3><strong>Les meilleures applications<\/strong><\/h3><ul><li>B\u00e9ton haute performance<\/li><li>Tunnels<\/li><li>Applications mini\u00e8res<\/li><li>Environnements extr\u00eames<\/li><\/ul><p>C'est le choix id\u00e9al lorsqu'une durabilit\u00e9 et une r\u00e9sistance maximales sont requises.<\/p><p><!-- notionvc: 4468e42e-4cc2-4287-ae3c-224ca2c2f6d6 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-892c11c e-grid e-con-boxed e-con e-parent\" data-id=\"892c11c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d80540c elementor-widget elementor-widget-image\" data-id=\"d80540c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/types-de-fibres\/fibre-de-polyacrylonitrile\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/pan-fiber-1024x640.jpg\" class=\"attachment-large size-large wp-image-7842\" alt=\"pan-fibre\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/pan-fiber-1024x640.jpg 1024w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/pan-fiber-300x188.jpg 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/pan-fiber-768x480.jpg 768w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/pan-fiber-1536x960.jpg 1536w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/pan-fiber-18x12.jpg 18w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/pan-fiber.jpg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-33daa8e elementor-widget elementor-widget-heading\" data-id=\"33daa8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">PP, PET et PAN : comparaison c\u00f4te \u00e0 c\u00f4te<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77eeab7 elementor-widget elementor-widget-text-editor\" data-id=\"77eeab7\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<table>\n  <thead>\n    <tr style=\"background-color: #36716c; color: #ffffff;\">\n      <th>Propri\u00e9t\u00e9<\/th>\n      <th>Fibre PP<\/th>\n      <th>Fibre PET<\/th>\n      <th>Fibre PAN<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>Densit\u00e9 (g\/cm\u00b3)<\/td>\n      <td>0.91<\/td>\n      <td>1.38<\/td>\n      <td>1.18<\/td>\n    <\/tr>\n    <tr>\n      <td>R\u00e9sistance \u00e0 la traction (MPa)<\/td>\n      <td>300\u2013700<\/td>\n      <td>400\u20131 100<\/td>\n      <td>500\u2013900<\/td>\n    <\/tr>\n    <tr>\n      <td>Module d'\u00e9lasticit\u00e9<\/td>\n      <td>\u22654500 MPa<\/td>\n      <td>\u2265 9 000 MPa<\/td>\n      <td>\u22654000 MPa<\/td>\n    <\/tr>\n    <tr>\n      <td>Point de fusion<\/td>\n      <td>~165 \u00b0C<\/td>\n      <td>~260 \u00b0C<\/td>\n      <td>\u2265 200 \u00b0C<\/td>\n    <\/tr>\n    <tr>\n      <td>R\u00e9sistance aux alcalins<\/td>\n      <td>\u2605\u2605\u2605\u2605\u2605<\/td>\n      <td>\u2605\u2605\u2605\u2605\u2606<\/td>\n      <td>\u2605\u2605\u2605\u2605\u2605<\/td>\n    <\/tr>\n    <tr>\n      <td>R\u00e9sistance chimique<\/td>\n      <td>\u2605\u2605\u2605\u2605\u2606<\/td>\n      <td>\u2605\u2605\u2605\u2606\u2606<\/td>\n      <td>\u2605\u2605\u2605\u2605\u2605<\/td>\n    <\/tr>\n    <tr>\n      <td>Comportement au feu<\/td>\n      <td>Mauvais (fond)<\/td>\n      <td>Mod\u00e9r\u00e9<\/td>\n      <td>Excellent (carbonis\u00e9)<\/td>\n    <\/tr>\n    <tr>\n      <td>Adh\u00e9rence au ciment<\/td>\n      <td>Bon<\/td>\n      <td>Bon<\/td>\n      <td>Excellent<\/td>\n    <\/tr>\n    <tr>\n      <td>Impact sur la maniabilit\u00e9<\/td>\n      <td>Faible<\/td>\n      <td>Mod\u00e9r\u00e9<\/td>\n      <td>Faible \u00e0 mod\u00e9r\u00e9<\/td>\n    <\/tr>\n    <tr>\n      <td>Id\u00e9al pour<\/td>\n      <td>\u00c0 usage g\u00e9n\u00e9ral, ax\u00e9 sur les co\u00fbts<\/td>\n      <td>Rigidit\u00e9, r\u00e9sistance \u00e0 la chaleur<\/td>\n      <td>Produits chimiques, incendie, maritime<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3edec71 elementor-widget elementor-widget-text-editor\" data-id=\"3edec71\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Questions fr\u00e9quemment pos\u00e9es<\/strong><\/h2><p><strong>Q : La fibre PAN est-elle toujours meilleure que la fibre PP ?<\/strong><\/p><p>R : Non. La fibre PAN se distingue par sa r\u00e9sistance chimique, sa s\u00e9curit\u00e9 incendie et ses performances dans les applications \u00e0 haute temp\u00e9rature ; toutefois, pour le traitement standard des fissures dans le b\u00e9ton et les rev\u00eatements de sol industriels, la fibre PP offre des performances \u00e9quivalentes \u00e0 moindre co\u00fbt. Le \u201c meilleur \u201d mat\u00e9riau d\u00e9pend de l'application.<\/p><p><strong>Q : Puis-je m\u00e9langer des fibres de PP et de PAN dans le m\u00eame b\u00e9ton ?<\/strong><\/p><p>R : Oui, il s'agit d'une approche hybride. Par exemple, 0,9 kg\/m\u00b3 de fibres de PAN pour la r\u00e9sistance aux produits chimiques, associ\u00e9es \u00e0 5 kg\/m\u00b3 de macrofibres de PP pour le renforcement structurel. C'est une pratique courante dans les cahiers des charges relatifs aux rev\u00eatements de sol des usines chimiques.<\/p><p><strong>Q : Pourquoi la fibre de PET est-elle moins courante que celle de PP dans le b\u00e9ton ?<\/strong><\/p><p>R : La fibre de PP s'est rapidement impos\u00e9e sur le march\u00e9 gr\u00e2ce \u00e0 son faible co\u00fbt, \u00e0 son excellente r\u00e9sistance aux alcalis et \u00e0 sa grande disponibilit\u00e9. Le PET offre des avantages marginaux en termes de performances qui ne justifient pas toujours son prix plus \u00e9lev\u00e9. Le PET est plus couramment utilis\u00e9 dans les applications li\u00e9es \u00e0 l'asphalte et aux g\u00e9otextiles que dans le b\u00e9ton.<\/p><p><strong>Q : Le co\u00fbt plus \u00e9lev\u00e9 de la fibre PAN en vaut-il la peine ?<\/strong><\/p><p>R : Dans les applications appropri\u00e9es, absolument. Pour les tabliers de ponts expos\u00e9s aux sels de d\u00e9neigement, les sols d\u2019usines chimiques, les ouvrages maritimes et les tunnels r\u00e9sistants au feu, les performances chimiques et thermiques sup\u00e9rieures de la fibre PAN permettent d\u2019\u00e9viter des d\u00e9faillances dont la r\u00e9paration co\u00fbterait des ordres de grandeur plus \u00e9lev\u00e9s. Pour les dalles standard, le surco\u00fbt est plus difficile \u00e0 justifier.<\/p><p><strong>Q : Comment savoir quelle fibre choisir pour mon projet ?<\/strong><\/p><p>R : Commencez par identifier votre principal risque : s'agit-il d'une exposition \u00e0 des produits chimiques ? De la s\u00e9curit\u00e9 incendie ? Du co\u00fbt ? De la pr\u00e9vention des fissures ? Une fois que vous connaissez la principale menace, le choix du mat\u00e9riau s'impose de lui-m\u00eame. Consultez notre\u00a0<a href=\"https:\/\/tenabrix.com\/fr\/guide-complet-sur-le-renforcement-des-fibres-de-beton\/\" target=\"_blank\" rel=\"noopener\">Guide complet pour choisir les fibres de renforcement du b\u00e9ton<\/a>\u00a0pour un cadre d\u00e9cisionnel \u00e9tape par \u00e9tape.<\/p><p><!-- notionvc: 96f06253-6fc9-43e8-b507-ce42b86ab930 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30c13be elementor-widget elementor-widget-text-editor\" data-id=\"30c13be\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Conclusion<\/h2><p>Lorsqu'on compare <strong>Polypropyl\u00e8ne, polyester et fibre PAN pour le b\u00e9ton<\/strong>, le meilleur choix d\u00e9pend des besoins de votre projet.<\/p><p>La fibre de polypropyl\u00e8ne est id\u00e9ale pour un contr\u00f4le des fissures \u00e0 la fois \u00e9conomique et fiable. La fibre de polyester offre une r\u00e9sistance et une durabilit\u00e9 accrues pour les applications exigeantes. La fibre PAN offre des performances de pointe pour les structures en b\u00e9ton \u00e0 hautes performances.<\/p><p>Comprendre les diff\u00e9rences entre ces mat\u00e9riaux aide les ing\u00e9nieurs, les entrepreneurs et les acheteurs \u00e0 choisir la solution de fibres la mieux adapt\u00e9e pour am\u00e9liorer les performances du b\u00e9ton et prolonger sa dur\u00e9e de vie.<\/p><p><!-- notionvc: 166cb2bc-0317-4beb-8444-f05bbf009c9d --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab9f6e5 elementor-widget elementor-widget-text-editor\" data-id=\"ab9f6e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>B\u00e9n\u00e9ficiez de l'aide d'experts pour le choix des mat\u00e9riaux<\/strong><\/h2><p>Au\u00a0<strong>TenaBrix<\/strong>, nous fabriquons ces trois types de fibres \u2014 PP, PET et PAN \u2014, ce qui nous permet de vous recommander le mat\u00e9riau le mieux adapt\u00e9 \u00e0 votre projet, sans privil\u00e9gier aucun produit en particulier.<\/p><p>Notre \u00e9quipe technique a prescrit l'utilisation de renforts en fibres pour des projets allant des sols d'entrep\u00f4ts classiques aux structures de confinement d'usines chimiques, en passant par les syst\u00e8mes de s\u00e9curit\u00e9 incendie dans les tunnels.<\/p><p><a href=\"https:\/\/tenabrix.com\/fr\/contact\/\" target=\"_blank\" rel=\"noopener\"><strong>Contactez notre \u00e9quipe pour obtenir gratuitement des conseils sur les mat\u00e9riaux \u2192<\/strong><\/a><\/p><p>Nous examinerons les sp\u00e9cifications de votre projet et vous ferons parvenir une recommandation \u00e9crite pr\u00e9cisant les dosages, g\u00e9n\u00e9ralement dans les 24 heures.<\/p><p><!-- notionvc: 829ea96c-1b62-4ecf-b7db-ab09fb43e9dd --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-830492f elementor-widget elementor-widget-button\" data-id=\"830492f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjY2NDAiLCJ0b2dnbGUiOmZhbHNlfQ%3D%3D\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Demande d'\u00e9chantillon gratuit<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c6b0b82\" data-id=\"c6b0b82\" data-element_type=\"column\" data-e-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-3bbb24c elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"3bbb24c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-cta\">\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h3 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tVous recherchez le soutien d'un expert ?\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__description elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tNous sommes l\u00e0 24 heures sur 24, 7 jours sur 7.\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t<a class=\"elementor-cta__button elementor-button elementor-size-\" href=\"https:\/\/tenabrix.com\/fr\/contact\/\" target=\"_blank\">\n\t\t\t\t\t\tContact\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5189c95 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-center elementor-widget elementor-widget-divider\" data-id=\"5189c95\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tArticles connexes\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f234c84 elementor-grid-1 elementor-posts--thumbnail-none elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-widget elementor-widget-posts\" data-id=\"f234c84\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;classic_columns&quot;:&quot;1&quot;,&quot;classic_row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:15,&quot;sizes&quot;:[]},&quot;classic_columns_tablet&quot;:&quot;2&quot;,&quot;classic_columns_mobile&quot;:&quot;1&quot;,&quot;classic_row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;classic_row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"posts.classic\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-posts-container elementor-posts elementor-posts--skin-classic elementor-grid\" role=\"list\">\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-9233 post type-post status-publish format-standard has-post-thumbnail hentry category-uncategorized\" role=\"listitem\">\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/guide-sur-le-renforcement-par-fibres-du-beton-projete-dans-les-tunnels\/\" target=\"&quot;_blank&quot;\">\n\t\t\t\tGuide sur le renforcement par fibres du b\u00e9ton projet\u00e9 dans les tunnels : comment choisir la fibre adapt\u00e9e aux projets souterrains\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t30 juillet 2026\t\t<\/span>\n\t\t\t\t<span class=\"elementor-post-avatar\">\n\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-9222 post type-post status-publish format-standard has-post-thumbnail hentry category-post tag-fiber-reinforced-concrete tag-industrial-concrete-flooring-reinforcement tag-macrofiber tag-microfiber tag-steel-fiber\" role=\"listitem\">\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/guide-sur-le-renforcement-par-fibres-des-sols-industriels-en-beton\/\" target=\"&quot;_blank&quot;\">\n\t\t\t\tRenforcement des sols en b\u00e9ton industriels : comment choisir la meilleure fibre pour les sols en b\u00e9ton\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t23 juillet 2026\t\t<\/span>\n\t\t\t\t<span class=\"elementor-post-avatar\">\n\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-9204 post type-post status-publish format-standard has-post-thumbnail hentry category-post tag-crack-prevention tag-tenabrix-synthetic-fibers\" role=\"listitem\">\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/prevention-de-la-formation-de-fissures-dans-les-sols-en-beton-des-entrepots\/\" target=\"&quot;_blank&quot;\">\n\t\t\t\tPr\u00e9vention des fissures dans les sols d'entrep\u00f4t : comment les fibres synth\u00e9tiques emp\u00eachent les fissures de se former\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t16 juillet 2026\t\t<\/span>\n\t\t\t\t<span class=\"elementor-post-avatar\">\n\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-9169 post type-post status-publish format-standard has-post-thumbnail hentry category-post tag-fiber-reinforced-concrete tag-pan-fiber tag-pet-fiber tag-pp-fiber\" role=\"listitem\">\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/pp-pet-et-fibres-pan-pour-le-beton\/\" target=\"&quot;_blank&quot;\">\n\t\t\t\tPolypropyl\u00e8ne, polyester ou fibres PAN pour le b\u00e9ton : quel mat\u00e9riau choisir ?\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t10 juillet 2026\t\t<\/span>\n\t\t\t\t<span class=\"elementor-post-avatar\">\n\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-9158 post type-post status-publish format-standard has-post-thumbnail hentry category-post tag-concrete-fiber tag-fiber-dosage tag-fiber-reinforced-concrete tag-pp-fiber\" role=\"listitem\">\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/fibre-de-polypropylene-destinee-aux-infrastructures-et-a-lindustrie\/\" target=\"&quot;_blank&quot;\">\n\t\t\t\tLe guide complet sur la fibre de polypropyl\u00e8ne (PP) : pourquoi elle est la r\u00e9f\u00e9rence absolue pour les infrastructures et l'industrie modernes\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t30 juin 2026\t\t<\/span>\n\t\t\t\t<span class=\"elementor-post-avatar\">\n\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-9145 post type-post status-publish format-standard has-post-thumbnail hentry category-post tag-concrete-fiber tag-fiber-dosage tag-fiber-reinforced-concrete\" role=\"listitem\">\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/guide-de-dosage-pour-le-renforcement-du-beton-par-fibres\/\" target=\"&quot;_blank&quot;\">\n\t\t\t\tGuide de dosage pour le renforcement du b\u00e9ton par des fibres : de quelle quantit\u00e9 de fibres avez-vous besoin ?\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t18 juin 2026\t\t<\/span>\n\t\t\t\t<span class=\"elementor-post-avatar\">\n\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\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-1ab0a71 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-center elementor-widget elementor-widget-divider\" data-id=\"1ab0a71\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tProduits en fibres\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53c6a04 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"53c6a04\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/types-de-fibres\/microfibre-synthetique-en-polypropylene\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-award\" viewbox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M97.12 362.63c-8.69-8.69-4.16-6.24-25.12-11.85-9.51-2.55-17.87-7.45-25.43-13.32L1.2 448.7c-4.39 10.77 3.81 22.47 15.43 22.03l52.69-2.01L105.56 507c8 8.44 22.04 5.81 26.43-4.96l52.05-127.62c-10.84 6.04-22.87 9.58-35.31 9.58-19.5 0-37.82-7.59-51.61-21.37zM382.8 448.7l-45.37-111.24c-7.56 5.88-15.92 10.77-25.43 13.32-21.07 5.64-16.45 3.18-25.12 11.85-13.79 13.78-32.12 21.37-51.62 21.37-12.44 0-24.47-3.55-35.31-9.58L252 502.04c4.39 10.77 18.44 13.4 26.43 4.96l36.25-38.28 52.69 2.01c11.62.44 19.82-11.27 15.43-22.03zM263 340c15.28-15.55 17.03-14.21 38.79-20.14 13.89-3.79 24.75-14.84 28.47-28.98 7.48-28.4 5.54-24.97 25.95-45.75 10.17-10.35 14.14-25.44 10.42-39.58-7.47-28.38-7.48-24.42 0-52.83 3.72-14.14-.25-29.23-10.42-39.58-20.41-20.78-18.47-17.36-25.95-45.75-3.72-14.14-14.58-25.19-28.47-28.98-27.88-7.61-24.52-5.62-44.95-26.41-10.17-10.35-25-14.4-38.89-10.61-27.87 7.6-23.98 7.61-51.9 0-13.89-3.79-28.72.25-38.89 10.61-20.41 20.78-17.05 18.8-44.94 26.41-13.89 3.79-24.75 14.84-28.47 28.98-7.47 28.39-5.54 24.97-25.95 45.75-10.17 10.35-14.15 25.44-10.42 39.58 7.47 28.36 7.48 24.4 0 52.82-3.72 14.14.25 29.23 10.42 39.59 20.41 20.78 18.47 17.35 25.95 45.75 3.72 14.14 14.58 25.19 28.47 28.98C104.6 325.96 106.27 325 121 340c13.23 13.47 33.84 15.88 49.74 5.82a39.676 39.676 0 0 1 42.53 0c15.89 10.06 36.5 7.65 49.73-5.82zM97.66 175.96c0-53.03 42.24-96.02 94.34-96.02s94.34 42.99 94.34 96.02-42.24 96.02-94.34 96.02-94.34-42.99-94.34-96.02z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Microfibre synth\u00e9tique<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/types-de-fibres\/polypropylene-pp-macro-fibre\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-award\" viewbox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M97.12 362.63c-8.69-8.69-4.16-6.24-25.12-11.85-9.51-2.55-17.87-7.45-25.43-13.32L1.2 448.7c-4.39 10.77 3.81 22.47 15.43 22.03l52.69-2.01L105.56 507c8 8.44 22.04 5.81 26.43-4.96l52.05-127.62c-10.84 6.04-22.87 9.58-35.31 9.58-19.5 0-37.82-7.59-51.61-21.37zM382.8 448.7l-45.37-111.24c-7.56 5.88-15.92 10.77-25.43 13.32-21.07 5.64-16.45 3.18-25.12 11.85-13.79 13.78-32.12 21.37-51.62 21.37-12.44 0-24.47-3.55-35.31-9.58L252 502.04c4.39 10.77 18.44 13.4 26.43 4.96l36.25-38.28 52.69 2.01c11.62.44 19.82-11.27 15.43-22.03zM263 340c15.28-15.55 17.03-14.21 38.79-20.14 13.89-3.79 24.75-14.84 28.47-28.98 7.48-28.4 5.54-24.97 25.95-45.75 10.17-10.35 14.14-25.44 10.42-39.58-7.47-28.38-7.48-24.42 0-52.83 3.72-14.14-.25-29.23-10.42-39.58-20.41-20.78-18.47-17.36-25.95-45.75-3.72-14.14-14.58-25.19-28.47-28.98-27.88-7.61-24.52-5.62-44.95-26.41-10.17-10.35-25-14.4-38.89-10.61-27.87 7.6-23.98 7.61-51.9 0-13.89-3.79-28.72.25-38.89 10.61-20.41 20.78-17.05 18.8-44.94 26.41-13.89 3.79-24.75 14.84-28.47 28.98-7.47 28.39-5.54 24.97-25.95 45.75-10.17 10.35-14.15 25.44-10.42 39.58 7.47 28.36 7.48 24.4 0 52.82-3.72 14.14.25 29.23 10.42 39.59 20.41 20.78 18.47 17.35 25.95 45.75 3.72 14.14 14.58 25.19 28.47 28.98C104.6 325.96 106.27 325 121 340c13.23 13.47 33.84 15.88 49.74 5.82a39.676 39.676 0 0 1 42.53 0c15.89 10.06 36.5 7.65 49.73-5.82zM97.66 175.96c0-53.03 42.24-96.02 94.34-96.02s94.34 42.99 94.34 96.02-42.24 96.02-94.34 96.02-94.34-42.99-94.34-96.02z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Macrofibre synth\u00e9tique<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/types-de-fibres\/fibre-fibrillaire-en-polypropylene\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-award\" viewbox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M97.12 362.63c-8.69-8.69-4.16-6.24-25.12-11.85-9.51-2.55-17.87-7.45-25.43-13.32L1.2 448.7c-4.39 10.77 3.81 22.47 15.43 22.03l52.69-2.01L105.56 507c8 8.44 22.04 5.81 26.43-4.96l52.05-127.62c-10.84 6.04-22.87 9.58-35.31 9.58-19.5 0-37.82-7.59-51.61-21.37zM382.8 448.7l-45.37-111.24c-7.56 5.88-15.92 10.77-25.43 13.32-21.07 5.64-16.45 3.18-25.12 11.85-13.79 13.78-32.12 21.37-51.62 21.37-12.44 0-24.47-3.55-35.31-9.58L252 502.04c4.39 10.77 18.44 13.4 26.43 4.96l36.25-38.28 52.69 2.01c11.62.44 19.82-11.27 15.43-22.03zM263 340c15.28-15.55 17.03-14.21 38.79-20.14 13.89-3.79 24.75-14.84 28.47-28.98 7.48-28.4 5.54-24.97 25.95-45.75 10.17-10.35 14.14-25.44 10.42-39.58-7.47-28.38-7.48-24.42 0-52.83 3.72-14.14-.25-29.23-10.42-39.58-20.41-20.78-18.47-17.36-25.95-45.75-3.72-14.14-14.58-25.19-28.47-28.98-27.88-7.61-24.52-5.62-44.95-26.41-10.17-10.35-25-14.4-38.89-10.61-27.87 7.6-23.98 7.61-51.9 0-13.89-3.79-28.72.25-38.89 10.61-20.41 20.78-17.05 18.8-44.94 26.41-13.89 3.79-24.75 14.84-28.47 28.98-7.47 28.39-5.54 24.97-25.95 45.75-10.17 10.35-14.15 25.44-10.42 39.58 7.47 28.36 7.48 24.4 0 52.82-3.72 14.14.25 29.23 10.42 39.59 20.41 20.78 18.47 17.35 25.95 45.75 3.72 14.14 14.58 25.19 28.47 28.98C104.6 325.96 106.27 325 121 340c13.23 13.47 33.84 15.88 49.74 5.82a39.676 39.676 0 0 1 42.53 0c15.89 10.06 36.5 7.65 49.73-5.82zM97.66 175.96c0-53.03 42.24-96.02 94.34-96.02s94.34 42.99 94.34 96.02-42.24 96.02-94.34 96.02-94.34-42.99-94.34-96.02z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Fibre fibrillaire<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/tenabrix.com\/fr\/types-de-fibres\/macrofibre-synthetique-torsadee\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-award\" viewbox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M97.12 362.63c-8.69-8.69-4.16-6.24-25.12-11.85-9.51-2.55-17.87-7.45-25.43-13.32L1.2 448.7c-4.39 10.77 3.81 22.47 15.43 22.03l52.69-2.01L105.56 507c8 8.44 22.04 5.81 26.43-4.96l52.05-127.62c-10.84 6.04-22.87 9.58-35.31 9.58-19.5 0-37.82-7.59-51.61-21.37zM382.8 448.7l-45.37-111.24c-7.56 5.88-15.92 10.77-25.43 13.32-21.07 5.64-16.45 3.18-25.12 11.85-13.79 13.78-32.12 21.37-51.62 21.37-12.44 0-24.47-3.55-35.31-9.58L252 502.04c4.39 10.77 18.44 13.4 26.43 4.96l36.25-38.28 52.69 2.01c11.62.44 19.82-11.27 15.43-22.03zM263 340c15.28-15.55 17.03-14.21 38.79-20.14 13.89-3.79 24.75-14.84 28.47-28.98 7.48-28.4 5.54-24.97 25.95-45.75 10.17-10.35 14.14-25.44 10.42-39.58-7.47-28.38-7.48-24.42 0-52.83 3.72-14.14-.25-29.23-10.42-39.58-20.41-20.78-18.47-17.36-25.95-45.75-3.72-14.14-14.58-25.19-28.47-28.98-27.88-7.61-24.52-5.62-44.95-26.41-10.17-10.35-25-14.4-38.89-10.61-27.87 7.6-23.98 7.61-51.9 0-13.89-3.79-28.72.25-38.89 10.61-20.41 20.78-17.05 18.8-44.94 26.41-13.89 3.79-24.75 14.84-28.47 28.98-7.47 28.39-5.54 24.97-25.95 45.75-10.17 10.35-14.15 25.44-10.42 39.58 7.47 28.36 7.48 24.4 0 52.82-3.72 14.14.25 29.23 10.42 39.59 20.41 20.78 18.47 17.35 25.95 45.75 3.72 14.14 14.58 25.19 28.47 28.98C104.6 325.96 106.27 325 121 340c13.23 13.47 33.84 15.88 49.74 5.82a39.676 39.676 0 0 1 42.53 0c15.89 10.06 36.5 7.65 49.73-5.82zM97.66 175.96c0-53.03 42.24-96.02 94.34-96.02s94.34 42.99 94.34 96.02-42.24 96.02-94.34 96.02-94.34-42.99-94.34-96.02z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Fibre macrosynth\u00e9tique torsad\u00e9e<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\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":"<p>Le choix du mat\u00e9riau en fibres synth\u00e9tiques adapt\u00e9 au b\u00e9ton ne se r\u00e9sume pas \u00e0 une solution unique valable pour tous les cas. Le polypropyl\u00e8ne (PP), le polyester (PET) et le polyacrylonitrile (PAN) sont<\/p>","protected":false},"author":3,"featured_media":8053,"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":[30,89,91,46],"class_list":["post-9169","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-post","tag-fiber-reinforced-concrete","tag-pan-fiber","tag-pet-fiber","tag-pp-fiber"],"_links":{"self":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/9169","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=9169"}],"version-history":[{"count":11,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/9169\/revisions"}],"predecessor-version":[{"id":9221,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/posts\/9169\/revisions\/9221"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/media\/8053"}],"wp:attachment":[{"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/media?parent=9169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/categories?post=9169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tenabrix.com\/fr\/wp-json\/wp\/v2\/tags?post=9169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}