{"id":1078,"date":"2024-02-04T14:15:00","date_gmt":"2024-02-04T06:15:00","guid":{"rendered":"https:\/\/www.joyforce.com\/?p=1078"},"modified":"2024-02-05T13:19:06","modified_gmt":"2024-02-05T05:19:06","slug":"what-are-the-uses-and-properties-of-pva-fibers","status":"publish","type":"post","link":"https:\/\/www.joyforce.com\/fr\/blogs\/what-are-the-uses-and-properties-of-pva-fibers.html","title":{"rendered":"Quelles sont les utilisations et les propri\u00e9t\u00e9s des fibres PVA ?"},"content":{"rendered":"<div class=\"shown_news_a\">2023-05-08<\/div>\n<div class=\"shown_news_b\">Les fibres PVA (alcool polyvinylique) sont des fibres monofilament qui se dispersent dans la matrice du b\u00e9ton, cr\u00e9ant un r\u00e9seau de fibres multidirectionnel, offrant un contr\u00f4le du retrait, une r\u00e9sistance \u00e0 l'abrasion et une protection contre la dilatation et la contraction thermiques.<br \/>\nQuelle est l'utilisation de la fibre PVA ?<br \/>\nLes fibres PVA peuvent \u00eatre utilis\u00e9es comme moyen principal ou secondaire de renforcement des objets artisanaux en b\u00e9ton, y compris les comptoirs en b\u00e9ton, les \u00e9l\u00e9ments architecturaux en b\u00e9ton, les meubles en b\u00e9ton et bien d'autres applications.<br \/>\nQuelles sont les propri\u00e9t\u00e9s de la fibre PVA ?<br \/>\nLes propri\u00e9t\u00e9s de la fibre PVA sont un diam\u00e8tre de 38 \u00b5m, une longueur de 8 mm et une densit\u00e9 de 1,3 gramme\/cm3, comme le montre la figure 1. Le module d'\u00e9lasticit\u00e9 de la fibre PVA est compris entre 25 et 40 GPa, ce qui est sup\u00e9rieur \u00e0 celui de la fibre naturelle. L'allongement de la fibre PVA est de 6-10%, et la r\u00e9sistance \u00e0 la traction de la fibre PVA est comprise entre 880 et 1600 MPa.<img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-1079\" src=\"https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1.webp\" alt=\"\" width=\"430\" height=\"430\" srcset=\"https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1.webp 430w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1-300x300.webp 300w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1-150x150.webp 150w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1-12x12.webp 12w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1-100x100.webp 100w\" sizes=\"(max-width: 430px) 100vw, 430px\" \/><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>2023-05-08 Les fibres PVA (alcool polyvinylique) sont des fibres monofilament qui se dispersent dans la matrice du b\u00e9ton, cr\u00e9ant un r\u00e9seau de fibres multidirectionnel, offrant un contr\u00f4le du retrait, une r\u00e9sistance \u00e0 l'abrasion et une protection contre l'expansion et la contraction thermiques. Quelle est l'utilisation de la fibre PVA ? Les fibres PVA peuvent \u00eatre utilis\u00e9es comme moyen principal ou secondaire de renforcement des objets artisanaux en b\u00e9ton, y compris [...]<\/p>","protected":false},"author":1,"featured_media":1079,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-1078","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are the uses and properties of PVA fibers? - JOYFORCE INDUSTRIAL<\/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:\/\/www.joyforce.com\/fr\/blogs\/what-are-the-uses-and-properties-of-pva-fibers.html\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the uses and properties of PVA fibers? - JOYFORCE INDUSTRIAL\" \/>\n<meta property=\"og:description\" content=\"2023-05-08 PVA (Polyvinyl alcohol) fibers are monofilament fibers that disperse throughout the concrete matrix, creating a multi-directional fiber network, providing shrinkage control, abrasion resistance, and protection from thermal expansion and contraction. What is the use of PVA fiber? 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