{"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\/pt\/blogs\/what-are-the-uses-and-properties-of-pva-fibers.html","title":{"rendered":"Quais s\u00e3o os usos e as propriedades das fibras de PVA?"},"content":{"rendered":"<div class=\"shown_news_a\">2023-05-08<\/div>\n<div class=\"shown_news_b\">As fibras de PVA (\u00e1lcool polivin\u00edlico) s\u00e3o fibras monofilamentares que se dispersam pela matriz de concreto, criando uma rede de fibras multidirecionais, proporcionando controle de retra\u00e7\u00e3o, resist\u00eancia \u00e0 abras\u00e3o e prote\u00e7\u00e3o contra expans\u00e3o e contra\u00e7\u00e3o t\u00e9rmica.<br \/>\nQual \u00e9 o uso da fibra de PVA?<br \/>\nAs fibras de PVA podem ser usadas como meio prim\u00e1rio ou secund\u00e1rio de refor\u00e7o de objetos de concreto artesanal, incluindo bancadas de concreto, elementos arquitet\u00f4nicos de concreto, m\u00f3veis de concreto e muitas outras aplica\u00e7\u00f5es.<br \/>\nQuais s\u00e3o as propriedades da fibra de PVA?<br \/>\nAs propriedades da fibra de PVA s\u00e3o 38 \u00b5m de di\u00e2metro, com oito mm de comprimento e densidade de 1,3 grama\/cm3 , conforme mostrado na Fig. 1. O m\u00f3dulo de elasticidade da fibra de PVA est\u00e1 na faixa de 25 a 40 GPa e \u00e9 maior do que o da fibra natural. O alongamento da fibra de PVA \u00e9 de 6-10%, e a resist\u00eancia \u00e0 tra\u00e7\u00e3o da fibra de PVA est\u00e1 na faixa de 880 a 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 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? PVA fibers can be used as a primary or secondary means of reinforcing artisan concrete objects, including [&hellip;]<\/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\/pt\/blogs\/what-are-the-uses-and-properties-of-pva-fibers.html\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\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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