{"id":9145,"date":"2026-06-18T09:05:02","date_gmt":"2026-06-18T09:05:02","guid":{"rendered":"https:\/\/tenabrix.com\/?p=9145"},"modified":"2026-06-18T09:08:33","modified_gmt":"2026-06-18T09:08:33","slug":"guia-de-dosagem-para-reforco-com-fibras-de-concreto","status":"publish","type":"post","link":"https:\/\/tenabrix.com\/pt\/guia-de-dosagem-para-reforco-com-fibras-de-concreto\/","title":{"rendered":"Guia de dosagem para refor\u00e7o de concreto com fibras: Quanta fibra voc\u00ea precisa?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"9145\" class=\"elementor elementor-9145\" 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-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\">\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-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>Acertar na dosagem de fibras \u00e9 uma das decis\u00f5es mais importantes em qualquer projeto de mistura de concreto. Se a quantidade de fibras for insuficiente, n\u00e3o ser\u00e1 poss\u00edvel obter o controle de fissuras nem o desempenho estrutural necess\u00e1rios. Se for excessiva, corre-se o risco de problemas de trabalhabilidade, dificuldades no acabamento da superf\u00edcie e custos desnecess\u00e1rios.<\/p><p>Este guia apresenta taxas de dosagem concretas (trocadilho intencional) para cada um dos principais tipos de fibra e aplica\u00e7\u00f5es \u2014 com base na experi\u00eancia pr\u00e1tica adquirida em milhares de projetos em todo o mundo.<\/p><blockquote><p><strong>Refer\u00eancia r\u00e1pida<\/strong>: Se voc\u00ea estiver com pressa, v\u00e1 direto para o\u00a0<a href=\"#dosage-table\">Tabela de refer\u00eancia de dosagem por aplica\u00e7\u00e3o<\/a>\u00a0abaixo.<\/p><\/blockquote><p><!-- notionvc: dda1e438-04e3-4aed-bfa6-bfd07963ac8f --><\/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-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\">Por que a dosagem de fibras \u00e9 mais importante do que voc\u00ea imagina<\/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-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>A dosagem de fibras \u00e9 normalmente expressa em\u00a0<strong>quilogramas por metro c\u00fabico de concreto (kg\/m\u00b3)<\/strong>, ou, ocasionalmente, como um\u00a0<strong>fra\u00e7\u00e3o volum\u00e9trica (Vf %)<\/strong>.<\/p><p>A dosagem que voc\u00ea escolher afeta diretamente:<\/p><ul><li><strong>Desempenho no controle de trincas<\/strong>\u00a0\u2014 a subdosagem \u00e9 a principal causa de falha no refor\u00e7o com fibras<\/li><li><strong>Capacidade de carga p\u00f3s-fissura\u00e7\u00e3o<\/strong>\u00a0\u2014 o que \u00e9 particularmente importante para as fibras sint\u00e9ticas macras e as fibras de a\u00e7o<\/li><li><strong>Trabalhabilidade e bombeabilidade<\/strong>\u00a0\u2014 dosagens mais altas podem aumentar a rigidez se a composi\u00e7\u00e3o da mistura n\u00e3o for ajustada<\/li><li><strong>Qualidade do acabamento superficial<\/strong>\u00a0\u2014 especialmente importante para concreto arquitet\u00f4nico e pisos polidos<\/li><li><strong>Custo total<\/strong>\u00a0\u2014 a fibra \u00e9 normalmente vendida por kg, portanto, a dosagem tem um impacto direto no custo<\/li><\/ul><p>A maioria dos engenheiros e empreiteiros tende a subestimar a dosagem, pois a fibra parece cara quando considerada por saco. A realidade \u00e9 que o custo de uma laje rachada \u2014 seja para retritura\u00e7\u00e3o, inje\u00e7\u00e3o de ep\u00f3xi ou substitui\u00e7\u00e3o total \u2014 \u00e9 ordens de magnitude mais alto.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e881ebd elementor-widget elementor-widget-image\" data-id=\"e881ebd\" data-element_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<img fetchpriority=\"high\" decoding=\"async\" width=\"798\" height=\"533\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/concrete_fiber_3mm.webp\" class=\"attachment-large size-large wp-image-8053\" alt=\"fibra_de_concreto_3mm\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/concrete_fiber_3mm.webp 798w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/concrete_fiber_3mm-300x200.webp 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/concrete_fiber_3mm-768x513.webp 768w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/02\/concrete_fiber_3mm-18x12.webp 18w\" sizes=\"(max-width: 798px) 100vw, 798px\" \/>\t\t\t\t\t\t\t\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-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\">Ingest\u00e3o de fibras: defini\u00e7\u00e3o dos principais termos<\/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-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\tAntes de entrarmos nos n\u00fameros, um breve gloss\u00e1rio:\n<table>\n<thead>\n<tr>\n<th>Termo<\/th>\n<th>Defini\u00e7\u00e3o<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Taxa de dosagem<\/strong><\/td>\n<td>Quantidade de fibra adicionada por metro c\u00fabico de concreto (kg\/m\u00b3)<\/td>\n<\/tr>\n<tr>\n<td><strong>Fra\u00e7\u00e3o volum\u00e9trica (Vf%)<\/strong><\/td>\n<td>Volume da fibra como porcentagem do volume total do concreto (1 kg\/m\u00b3 \u2248 0,067% Vf para fibra de PP)<\/td>\n<\/tr>\n<tr>\n<td><strong>Dose m\u00ednima eficaz<\/strong><\/td>\n<td>A menor dosagem que proporciona uma melhora mensur\u00e1vel no desempenho<\/td>\n<\/tr>\n<tr>\n<td><strong>Dosagem estrutural<\/strong><\/td>\n<td>Dosagem na qual a fibra pode substituir ou reduzir o refor\u00e7o tradicional<\/td>\n<\/tr>\n<tr>\n<td><strong>Sistema h\u00edbrido<\/strong><\/td>\n<td>Combina\u00e7\u00e3o de microfibras (controle de fissuras) + macrofibras (estruturais) na mesma mistura<\/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-c40b8de elementor-widget elementor-widget-heading\" data-id=\"c40b8de\" data-element_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\">Tipos de fibras e suas faixas t\u00edpicas de dosagem<\/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-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>Diferentes tipos de fibras operam em n\u00edveis de dosagem fundamentalmente distintos devido \u00e0s diferen\u00e7as de densidade, m\u00f3dulo de elasticidade e mecanismo de refor\u00e7o.<\/p><h3><strong>Fibra sint\u00e9tica micro (polipropileno \/ poli\u00e9ster)<\/strong><\/h3><p>As microfibras s\u00e3o fibras finas e curtas (6\u201319 mm), monofilamentos ou fibras fibriladas, que controlam principalmente\u00a0<strong>encolhimento do pl\u00e1stico e fissura\u00e7\u00e3o precoce<\/strong>.<\/p><ul><li><strong>Dosagem t\u00edpica<\/strong>: 0,6 \u2013 1,5 kg\/m\u00b3<\/li><li><strong>Dose m\u00ednima eficaz<\/strong>: 0,6 kg\/m\u00b3<\/li><li><strong>Limite pr\u00e1tico superior<\/strong>: 2,0 kg\/m\u00b3 (acima desse valor, a trabalhabilidade diminui drasticamente)<\/li><li><strong>Fra\u00e7\u00e3o volum\u00e9trica<\/strong>: 0,04% \u2013 0,10% Vf<\/li><\/ul><blockquote><p><strong>Produto TenaBrix<\/strong>:\u00a0<a href=\"https:\/\/tenabrix.com\/pt\/tipos-de-fibra\/fibra-de-polipropileno\/\" target=\"_blank\" rel=\"noopener\">Microfibra de polipropileno<\/a>\u00a0\u2014 dispon\u00edvel nos comprimentos de 6 mm, 12 mm e 19 mm<\/p><\/blockquote><h3><strong>Fibra sint\u00e9tica macro (grau estrutural)<\/strong><\/h3><p>As macrofibras s\u00e3o fibras maiores, com relevo ou perfiladas (30\u201360 mm de comprimento) que proporcionam\u00a0<strong>refor\u00e7o estrutural p\u00f3s-fissura\u00e7\u00e3o<\/strong>. Em dosagem adequada, elas podem substituir parcial ou totalmente a malha de a\u00e7o ou as fibras de a\u00e7o.<\/p><ul><li><strong>Dosagem t\u00edpica<\/strong>: 3 \u2013 10 kg\/m\u00b3<\/li><li><strong>Uso em estruturas leves (ponte de fissuras)<\/strong>: 3 \u2013 5 kg\/m\u00b3<\/li><li><strong>Uso estrutural moderado (substitui\u00e7\u00e3o da malha)<\/strong>: 5 \u2013 7 kg\/m\u00b3<\/li><li><strong>Alta aplica\u00e7\u00e3o estrutural (substitui\u00e7\u00e3o da fibra de a\u00e7o)<\/strong>: 7 \u2013 10 kg\/m\u00b3<\/li><li><strong>Fra\u00e7\u00e3o volum\u00e9trica<\/strong>: 0,27% \u2013 0,90% Vf<\/li><\/ul><blockquote><p><strong>Produto TenaBrix<\/strong>:\u00a0<a href=\"https:\/\/tenabrix.com\/pt\/tipos-de-fibra\/macrofibra-de-polipropileno-pp\/\" target=\"_blank\" rel=\"noopener\">Macrofibra de polipropileno<\/a>\u00a0\u2014 Fibras em relevo de 48 mm e 54 mm; em conformidade com a norma EFNARC<\/p><\/blockquote><h3><strong>Fibra de a\u00e7o<\/strong><\/h3><p>As fibras de a\u00e7o oferecem a maior resist\u00eancia p\u00f3s-fissura\u00e7\u00e3o e s\u00e3o utilizadas nas aplica\u00e7\u00f5es estruturais mais exigentes.<\/p><ul><li><strong>Dosagem t\u00edpica<\/strong>: 20 \u2013 80 kg\/m\u00b3<\/li><li><strong>Piso padr\u00e3o<\/strong>: 20 \u2013 35 kg\/m\u00b3<\/li><li><strong>Revestimento segmentado de t\u00faneis<\/strong>: 30 \u2013 45 kg\/m\u00b3<\/li><li><strong>Cargas extremas (explos\u00e3o, impacto)<\/strong>: 60 \u2013 80 kg\/m\u00b3<\/li><li><strong>Fra\u00e7\u00e3o volum\u00e9trica<\/strong>: 0,25% \u2013 1,0% Vf<\/li><\/ul><blockquote><p><strong>Observa\u00e7\u00e3o<\/strong>: A fibra de a\u00e7o tem densidade muito maior do que a fibra sint\u00e9tica (~7,85 g\/cm\u00b3 contra ~0,91 g\/cm\u00b3), raz\u00e3o pela qual as dosagens em kg\/m\u00b3 parecem muito mais elevadas, mesmo com fra\u00e7\u00f5es de volume semelhantes.<\/p><\/blockquote><h3><strong>Fibra de PAN (poliacrilonitrila)<\/strong><\/h3><p>A fibra PAN \u00e9 uma fibra especial de alto desempenho utilizada em aplica\u00e7\u00f5es que exigem resist\u00eancia qu\u00edmica, resist\u00eancia ao fogo ou estabilidade em altas temperaturas.<\/p><ul><li><strong>Dosagem t\u00edpica<\/strong>: 0,9 \u2013 3,0 kg\/m\u00b3<\/li><li><strong>Preven\u00e7\u00e3o da fragmenta\u00e7\u00e3o do concreto (inc\u00eandio)<\/strong>: 0,9 \u2013 1,5 kg\/m\u00b3<\/li><li><strong>Aplica\u00e7\u00f5es estruturais e de durabilidade<\/strong>: 1,5 \u2013 3,0 kg\/m\u00b3<\/li><li><strong>H\u00edbrido com macrofibra<\/strong>: 0,9 kg\/m\u00b3 de PAN + 4\u20136 kg\/m\u00b3 de Macro<\/li><\/ul><blockquote><p><strong>Produto TenaBrix<\/strong>:\u00a0<a href=\"https:\/\/tenabrix.com\/pt\/tipos-de-fibra\/anuncios-de-fibra-de-poliacrilonitrila\/\" target=\"_blank\" rel=\"noopener\">Fibra PAN<\/a>\u00a0\u2014 testado de acordo com as normas EN 14889-2 e ACI 544<\/p><\/blockquote><h3><strong>Fibra de poli\u00e9ster (PET)<\/strong><\/h3><p>Faixa de dosagem semelhante \u00e0 da microfibra de polipropileno, utilizada quando \u00e9 necess\u00e1ria maior resist\u00eancia aos \u00e1lcalis ou propriedades espec\u00edficas de alongamento.<\/p><ul><li><strong>Dosagem t\u00edpica<\/strong>: 0,6 \u2013 2,0 kg\/m\u00b3<\/li><li><strong>Uso padr\u00e3o<\/strong>: 0,9 \u2013 1,2 kg\/m\u00b3<\/li><\/ul><blockquote><p><strong>Produto TenaBrix<\/strong>:\u00a0<a href=\"https:\/\/tenabrix.com\/pt\/tipos-de-fibra\/fibra-de-poliester\/\" target=\"_blank\" rel=\"noopener\">Fibra de poli\u00e9ster<\/a><\/p><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2a20986 e-grid e-con-boxed e-con e-parent\" data-id=\"2a20986\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-e7211c0 e-con-full e-flex e-con e-child\" data-id=\"e7211c0\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d16da22 elementor-widget elementor-widget-image\" data-id=\"d16da22\" data-element_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\/pt\/tipos-de-fibra\/microfibra-sintetica-de-polipropileno\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/micro-pp-fiber.webp\" class=\"attachment-large size-large wp-image-7263\" alt=\"microfibra pp\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/micro-pp-fiber.webp 800w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/micro-pp-fiber-300x300.webp 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/micro-pp-fiber-150x150.webp 150w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/micro-pp-fiber-768x768.webp 768w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/micro-pp-fiber-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<div class=\"elementor-element elementor-element-0097b7d elementor-widget elementor-widget-text-editor\" data-id=\"0097b7d\" data-element_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><span class=\"notion-enable-hover\" data-token-index=\"0\">Microfibra sint\u00e9tica<\/span><!-- notionvc: 9065779d-c212-4b9f-bae8-22d92d336d57 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2a4e9e0 e-con-full e-flex e-con e-child\" data-id=\"2a4e9e0\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eff53b8 elementor-widget elementor-widget-image\" data-id=\"eff53b8\" data-element_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\/pt\/tipos-de-fibra\/macrofibra-de-polipropileno-pp\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/macro-fiber-800.webp\" class=\"attachment-large size-large wp-image-7254\" alt=\"Macrofibra sint\u00e9tica (refor\u00e7o estrutural)\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/macro-fiber-800.webp 800w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/macro-fiber-800-300x300.webp 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/macro-fiber-800-150x150.webp 150w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/macro-fiber-800-768x768.webp 768w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/macro-fiber-800-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<div class=\"elementor-element elementor-element-657dfeb elementor-widget elementor-widget-text-editor\" data-id=\"657dfeb\" data-element_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><span class=\"notion-enable-hover\" data-token-index=\"0\">Macro Synthetic Fibe<\/span><!-- notionvc: 979ceb97-8705-4b00-b815-b1aa01b95ca4 --><br \/><!-- notionvc: 9065779d-c212-4b9f-bae8-22d92d336d57 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a0730e9 e-con-full e-flex e-con e-child\" data-id=\"a0730e9\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c6d81b6 elementor-widget elementor-widget-image\" data-id=\"c6d81b6\" data-element_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\/pt\/fibras-de-aco-para-concreto\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/hook-end-steel-fibers-show.webp\" class=\"attachment-large size-large wp-image-7089\" alt=\"Fibra de a\u00e7o\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/hook-end-steel-fibers-show.webp 750w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/hook-end-steel-fibers-show-300x300.webp 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/hook-end-steel-fibers-show-150x150.webp 150w, https:\/\/tenabrix.com\/wp-content\/uploads\/2025\/06\/hook-end-steel-fibers-show-12x12.webp 12w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/>\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<div class=\"elementor-element elementor-element-80a2e2b elementor-widget elementor-widget-text-editor\" data-id=\"80a2e2b\" data-element_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><span class=\"notion-enable-hover\" data-token-index=\"0\">Fibra de a\u00e7o<\/span><!-- notionvc: 6cf4de75-ef6e-4911-b443-57201c5ac8cc --><br \/><!-- notionvc: 9065779d-c212-4b9f-bae8-22d92d336d57 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7255389 e-con-full e-flex e-con e-child\" data-id=\"7255389\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4ff58db elementor-widget elementor-widget-image\" data-id=\"4ff58db\" data-element_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\/pt\/tipos-de-fibra\/fibra-de-poliacrilonitrila\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" 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-fibra\" 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<div class=\"elementor-element elementor-element-171d78c elementor-widget elementor-widget-text-editor\" data-id=\"171d78c\" data-element_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><span class=\"notion-enable-hover\" data-token-index=\"0\">Fibra PAN<\/span><!-- notionvc: 9065779d-c212-4b9f-bae8-22d92d336d57 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b607e57 e-con-full e-flex e-con e-child\" data-id=\"b607e57\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3013900 elementor-widget elementor-widget-image\" data-id=\"3013900\" data-element_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\/pt\/fibra-de-poliester\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/normal-tensile-pet-fiber-1024x640.webp\" class=\"attachment-large size-large wp-image-7823\" alt=\"fibra pet de resist\u00eancia normal\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/normal-tensile-pet-fiber-1024x640.webp 1024w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/normal-tensile-pet-fiber-300x188.webp 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/normal-tensile-pet-fiber-768x480.webp 768w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/normal-tensile-pet-fiber-1536x960.webp 1536w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/normal-tensile-pet-fiber-18x12.webp 18w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/01\/normal-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<div class=\"elementor-element elementor-element-0edc3fd elementor-widget elementor-widget-text-editor\" data-id=\"0edc3fd\" data-element_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><span class=\"notion-enable-hover\" data-token-index=\"0\">Fibra de PET<\/span><!-- notionvc: 9065779d-c212-4b9f-bae8-22d92d336d57 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\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-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\"><h2 id=\"dosage-table\">Tabela de refer\u00eancia de dosagem por aplica\u00e7\u00e3o<\/h2><\/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-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>Esta \u00e9 a tabela de refer\u00eancia r\u00e1pida que a maioria dos engenheiros e empreiteiros salva nos favoritos. Todos os valores representam dosagens t\u00edpicas em campo \u2014 sempre confirme por meio de ensaios de projeto de mistura para aplica\u00e7\u00f5es cr\u00edticas.<\/p><table><thead><tr><th>Aplicativo<\/th><th>Fibra recomendada<\/th><th>Dosagem (kg\/m\u00b3)<\/th><th>Benef\u00edcio principal<\/th><\/tr><\/thead><tbody><tr><td><strong>Laje residencial sobre o solo<\/strong><\/td><td>PP Micro<\/td><td>0,6 \u2013 0,9<\/td><td>Controle da retra\u00e7\u00e3o do pl\u00e1stico<\/td><\/tr><tr><td><strong>Piso comercial (tr\u00e1fego leve)<\/strong><\/td><td>PP Micro<\/td><td>0,9 \u2013 1,2<\/td><td>Controle de rachaduras<\/td><\/tr><tr><td><strong>Piso de armaz\u00e9m (tr\u00e1fego intenso)<\/strong><\/td><td>PP Macro<\/td><td>4 \u2013 6<\/td><td>Substituir a malha, reduzir as juntas<\/td><\/tr><tr><td><strong>Piso industrial (empilhadeira\/prateleira)<\/strong><\/td><td>PP Macro<\/td><td>5 \u2013 7<\/td><td>Refor\u00e7o estrutural<\/td><\/tr><tr><td><strong>Piso do dep\u00f3sito frigor\u00edfico<\/strong><\/td><td>PP Macro<\/td><td>5 \u2013 7 + PP Micro 0,9<\/td><td>Resist\u00eancia a ciclos t\u00e9rmicos<\/td><\/tr><tr><td><strong>Piso da f\u00e1brica de produtos qu\u00edmicos<\/strong><\/td><td>PP Macro + PAN<\/td><td>5 PP + 1,5 PAN<\/td><td>Resist\u00eancia \u00e0 corros\u00e3o<\/td><\/tr><tr><td><strong>Elementos pr\u00e9-moldados (geral)<\/strong><\/td><td>PP Micro<\/td><td>0,9 \u2013 1,5<\/td><td>Desmoldagem antecipada, controle de rachaduras<\/td><\/tr><tr><td><strong>Elementos pr\u00e9-moldados de espessura reduzida<\/strong><\/td><td>Fibra de a\u00e7o<\/td><td>30 \u2013 50<\/td><td>Integridade estrutural<\/td><\/tr><tr><td><strong>Concreto projetado para t\u00faneis (prim\u00e1rio)<\/strong><\/td><td>Fibra de a\u00e7o<\/td><td>30 \u2013 40<\/td><td>Capacidade de carga<\/td><\/tr><tr><td><strong>Concreto projetado para t\u00faneis (revestimento final)<\/strong><\/td><td>PP Macro<\/td><td>5 \u2013 8<\/td><td>Resist\u00eancia \u00e0 corros\u00e3o, leveza<\/td><\/tr><tr><td><strong>Revestimento do conv\u00e9s da ponte<\/strong><\/td><td>Fibra PAN<\/td><td>1,5 \u2013 2,5<\/td><td>Resist\u00eancia qu\u00edmica, ader\u00eancia<\/td><\/tr><tr><td><strong>Pista \/ p\u00e1tio do aeroporto<\/strong><\/td><td>Fibra PAN + PP Macro<\/td><td>1,5 PAN + 5 PP<\/td><td>Resist\u00eancia ao fogo e ao impacto<\/td><\/tr><tr><td><strong>Estruturas mar\u00edtimas<\/strong><\/td><td>Fibra PAN<\/td><td>1,8 \u2013 3,0<\/td><td>Resist\u00eancia ao cloreto<\/td><\/tr><tr><td><strong>Reboco pulverizado \/ estuque<\/strong><\/td><td>PP Micro (6 mm)<\/td><td>0,6 \u2013 0,9<\/td><td>Controle de fissuras, ader\u00eancia<\/td><\/tr><tr><td><strong>Refrat\u00e1rio \/ resistente ao calor<\/strong><\/td><td>Fibra PAN<\/td><td>2,0 \u2013 3,0<\/td><td>Preven\u00e7\u00e3o de desagrega\u00e7\u00e3o at\u00e9 600 \u00b0C<\/td><\/tr><\/tbody><\/table>\t\t\t\t\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-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\">Como calcular a quantidade de fibra para o seu projeto<\/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-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>C\u00e1lculo passo a passo<\/strong><\/h3><h4><strong>Passo 1: Calcule o volume total de concreto<\/strong><\/h4><p><code>Volume (m\u00b3) = Comprimento (m) \u00d7 Largura (m) \u00d7 Espessura (m)<\/code><\/p><p>Exemplo: Piso de um armaz\u00e9m de 50 m \u00d7 30 m com 200 mm de espessura:<\/p><p><code>Volume = 50 \u00d7 30 \u00d7 0,20 = 300 m\u00b3<\/code><\/p><h4><strong>Etapa 2: Selecione a taxa de dosagem<\/strong><\/h4><p>Para um piso de armaz\u00e9m em substitui\u00e7\u00e3o \u00e0 malha de a\u00e7o tradicional:<\/p><p>\u2192 Use a fibra macro PP em\u00a0<strong>5 kg\/m\u00b3<\/strong><\/p><p><strong>Etapa 3: Calcular o peso total das fibras<\/strong><\/p><p><code>Fibra necess\u00e1ria (kg) = Volume (m\u00b3) \u00d7 Dosagem (kg\/m\u00b3)<\/code><\/p><p><code>300 m\u00b3 \u00d7 5 kg\/m\u00b3 = 1.500 kg de Macro Fiber<\/code><\/p><h4><strong>Etapa 4: Transformar em sacos ou embalagens<\/strong><\/h4><p>A fibra macro TenaBrix \u00e9 fornecida em sacos de 20 kg:<\/p><p><code>1.500 kg \u00f7 20 kg\/saco = 75 sacos<\/code><\/p><h4><strong>Etapa 5: Adicionar o fator de desperd\u00edcio 5%<\/strong><\/h4><p><code>75 sacos \u00d7 1,05 = 79 sacos (arredondar para 80)<\/code><\/p><h3><strong>Tabela de estimativas r\u00e1pidas<\/strong><\/h3><table><thead><tr><th>\u00c1rea da laje<\/th><th>Espessura<\/th><th>Volume de concreto<\/th><th>Macro Fiber @ 5 kg\/m\u00b3<\/th><th>Microfibra @ 0,9 kg\/m\u00b3<\/th><\/tr><\/thead><tbody><tr><td>100 m\u00b2<\/td><td>150 mm<\/td><td>15 m\u00b3<\/td><td>75 kg (4 sacos)<\/td><td>13,5 kg (1 saco)<\/td><\/tr><tr><td>500 m\u00b2<\/td><td>150 mm<\/td><td>75 m\u00b3<\/td><td>375 kg (19 sacos)<\/td><td>68 kg (4 sacos)<\/td><\/tr><tr><td>1.000 m\u00b2<\/td><td>200 mm<\/td><td>200 m\u00b3<\/td><td>1.000 kg (50 sacos)<\/td><td>180 kg (9 sacos)<\/td><\/tr><tr><td>5.000 m\u00b2<\/td><td>200 mm<\/td><td>1.000 m\u00b3<\/td><td>5.000 kg (250 sacos)<\/td><td>900 kg (45 sacos)<\/td><\/tr><tr><td>10.000 m\u00b2<\/td><td>250 mm<\/td><td>2.500 m\u00b3<\/td><td>12.500 kg (625 sacos)<\/td><td>2.250 kg (113 sacos)<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f242fae elementor-widget elementor-widget-image\" data-id=\"f242fae\" data-element_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<img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"567\" src=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/06\/how-to-caculate-fiber-quantity.png\" class=\"attachment-large size-large wp-image-9148\" alt=\"como-calcular-a-quantidade-de-fibras\" srcset=\"https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/06\/how-to-caculate-fiber-quantity.png 819w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/06\/how-to-caculate-fiber-quantity-300x208.png 300w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/06\/how-to-caculate-fiber-quantity-768x532.png 768w, https:\/\/tenabrix.com\/wp-content\/uploads\/2026\/06\/how-to-caculate-fiber-quantity-18x12.png 18w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a606346 elementor-widget elementor-widget-heading\" data-id=\"a606346\" data-element_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\">Sistemas h\u00edbridos de fibra: combinando micro e macro<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-565face elementor-widget elementor-widget-text-editor\" data-id=\"565face\" data-element_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>Uma das abordagens mais eficazes para projetos industriais e de infraestrutura \u00e9 uma\u00a0<strong>sistema h\u00edbrido de fibra dupla<\/strong>: microfibras para o controle de fissuras em fase inicial e de contra\u00e7\u00e3o do concreto, combinadas com macrofibras (ou fibras de a\u00e7o) para garantir o desempenho estrutural ap\u00f3s a forma\u00e7\u00e3o das fissuras.<\/p><h3><strong>Por que os sistemas h\u00edbridos funcionam<\/strong><\/h3><ul><li>As microfibras se ativam dentro de\u00a0<strong>minutos a horas<\/strong>\u00a0do momento da coloca\u00e7\u00e3o \u2014 aproveitar o per\u00edodo mais cr\u00edtico para a forma\u00e7\u00e3o de rachaduras<\/li><li>As macrofibras ativam\u00a0<strong>ap\u00f3s a cura do concreto<\/strong>\u00a0\u2014 proporcionando um refor\u00e7o estrutural de longo prazo<\/li><li>Juntos, eles abordam tanto os modos de falha precoces quanto os de longo prazo, que nenhum deles consegue lidar sozinho<\/li><\/ul><h3><strong>Combina\u00e7\u00f5es h\u00edbridas recomendadas<\/strong><\/h3><table><thead><tr><th>Aplicativo<\/th><th>Microfibra<\/th><th>Macro Fiber<\/th><th>Notas<\/th><\/tr><\/thead><tbody><tr><td>Piso industrial<\/td><td>PP Micro 0,9 kg\/m\u00b3<\/td><td>PP Macro 5\u20137 kg\/m\u00b3<\/td><td>Melhores pr\u00e1ticas para lajes sem juntas<\/td><\/tr><tr><td>Armazenamento refrigerado<\/td><td>PP Micro 0,9 kg\/m\u00b3<\/td><td>PP Macro 6 kg\/m\u00b3<\/td><td>Controle do movimento t\u00e9rmico<\/td><\/tr><tr><td>F\u00e1brica de produtos qu\u00edmicos<\/td><td>PAN 0,9 kg\/m\u00b3<\/td><td>PP Macro 5 kg\/m\u00b3<\/td><td>PAN = camada de resist\u00eancia qu\u00edmica<\/td><\/tr><tr><td>Infraestrutura<\/td><td>PAN 1,0 kg\/m\u00b3<\/td><td>A\u00e7o 30 kg\/m\u00b3<\/td><td>PAN para seguran\u00e7a contra inc\u00eandios, a\u00e7o para suporte de carga<\/td><\/tr><\/tbody><\/table><p>Para compara\u00e7\u00f5es completas de produtos e orienta\u00e7\u00f5es sobre aplica\u00e7\u00f5es, consulte nosso\u00a0<a href=\"https:\/\/tenabrix.com\/pt\/guia-completo-de-reforco-de-fibra-de-concreto\/\" target=\"_blank\" rel=\"noopener\">Guia completo para a escolha do refor\u00e7o de fibra para concreto<\/a>.<\/p><p><!-- notionvc: e44d3ad1-5a70-4a16-a703-fedbccdf6c3f --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-04f908b elementor-widget elementor-widget-heading\" data-id=\"04f908b\" data-element_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\">Fatores que influenciam sua decis\u00e3o final sobre a dosagem<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64b64c5 elementor-widget elementor-widget-text-editor\" data-id=\"64b64c5\" data-element_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>1. Granulometria e composi\u00e7\u00e3o da mistura<\/strong><\/h3><p>Um tamanho m\u00e1ximo de agregado maior (&gt;20 mm) pode afetar a distribui\u00e7\u00e3o das fibras. Para concreto com agregado de 32 mm ou mais, aumentar ligeiramente a dosagem em 10-15% ajuda a manter a dispers\u00e3o uniforme das fibras.<\/p><h3><strong>2. Rela\u00e7\u00e3o \u00e1gua-cimento<\/strong><\/h3><p>\u00cdndices de \u00e1gua\/cimento mais baixos (\u22640,40) resultam em misturas mais r\u00edgidas, nas quais a distribui\u00e7\u00e3o das fibras pode ser irregular. Considere o seguinte:<\/p><ul><li>Utiliza\u00e7\u00e3o de um plastificante para manter a trabalhabilidade<\/li><li>Reduzir a rela\u00e7\u00e3o de aspecto das fibras (utilizar fibras mais curtas)<\/li><li>Mistura da fibra aos agregados antes da adi\u00e7\u00e3o do cimento<\/li><\/ul><h3><strong>3. Bombeamento x Servimento direto<\/strong><\/h3><p>As misturas de concreto bombeado com macrofibras exigem aten\u00e7\u00e3o especial:<\/p><ul><li>Mantenha a dosagem abaixo de 7 kg\/m\u00b3 para linhas de bombeamento padr\u00e3o<\/li><li>Use uma tubula\u00e7\u00e3o de bombeamento com di\u00e2metro m\u00ednimo de 4 polegadas (100 mm)<\/li><li>Garantir a umecta\u00e7\u00e3o pr\u00e9via consistente dos agregados<\/li><\/ul><h3><strong>4. Condi\u00e7\u00f5es ambientais<\/strong><\/h3><ul><li><strong>Calor<\/strong>\u00a0(&gt;30 \u00b0C): O risco de encolhimento do pl\u00e1stico \u00e9 maior \u2014 aumente a dosagem de microfibras em 20-25%<\/li><li><strong>Clima frio<\/strong>\u00a0(&lt;5 \u00b0C): A cura prolongada reduz o risco de fissura\u00e7\u00e3o precoce; aplica-se a dosagem padr\u00e3o<\/li><li><strong>Vento &gt;20 km\/h<\/strong>: Acelera a secagem da superf\u00edcie; tratar como se estivesse em clima quente<\/li><\/ul><p><!-- notionvc: 567fa021-b4d8-4a85-9847-f6e963d66f6a --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20c4912 elementor-widget elementor-widget-heading\" data-id=\"20c4912\" data-element_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\">Erros comuns na dosagem (e como evit\u00e1-los)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ede6ad9 elementor-widget elementor-widget-text-editor\" data-id=\"ede6ad9\" data-element_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><strong>\u274c Erro 1: Usar a dosagem para microfibra em uma aplica\u00e7\u00e3o estrutural<\/strong><\/p><p>A microfibra com densidade de 0,9 kg\/m\u00b3 N\u00c3O proporciona refor\u00e7o estrutural \u2014 para isso, \u00e9 necess\u00e1ria a macrofibra com densidade de 4+ kg\/m\u00b3. Os dois tipos de fibra t\u00eam finalidades completamente diferentes.<\/p><p><strong>\u274c Erro 2: Comparar as dosagens de a\u00e7o e de material sint\u00e9tico por kg sem levar em conta a densidade<\/strong><\/p><p>5 kg\/m\u00b3 de macrofibra sint\u00e9tica \u2248 0,55% de fra\u00e7\u00e3o volum\u00e9trica. 5 kg\/m\u00b3 de fibra de a\u00e7o \u2248 0,064% de fra\u00e7\u00e3o volum\u00e9trica \u2014 uma enorme diferen\u00e7a no teor real de fibra.<\/p><p><strong>\u274c Erro 3: Ignorar a propor\u00e7\u00e3o entre fibra e agregado<\/strong><\/p><p>Agregados muito finos com grande \u00e1rea superficial podem \u201cconsumir\u201d as fibras. Sempre fa\u00e7a um lote de teste antes de iniciar a produ\u00e7\u00e3o em grande escala.<\/p><p><strong>\u274c Erro 4: Adicionar fibra \u00e0 mistura seca em um misturador de tambor<\/strong><\/p><p>A fibra deve ser adicionada \u00e0 betoneira ap\u00f3s a mistura do agregado com a \u00e1gua, e n\u00e3o \u00e0 mistura seca. A forma\u00e7\u00e3o pr\u00e9via de aglomerados em condi\u00e7\u00f5es secas prejudica a qualidade da distribui\u00e7\u00e3o.<\/p><p><strong>\u274c Erro 5: Presumir que quanto mais fibras, melhor<\/strong><\/p><p>Acima de ~10 kg\/m\u00b3 para macrofibras sint\u00e9ticas, a perda de trabalhabilidade geralmente supera os ganhos adicionais de desempenho. Planeje o sistema de mistura em vez de simplesmente adicionar mais fibra.<\/p><p><!-- notionvc: 3a5367e4-eb5f-4f65-979c-ad45672b9e6e --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a2ac032 elementor-widget elementor-widget-heading\" data-id=\"a2ac032\" data-element_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\">Perguntas frequentes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e46045 elementor-widget elementor-widget-text-editor\" data-id=\"3e46045\" data-element_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><strong>P: Qual \u00e9 a quantidade de fibra de polipropileno por metro c\u00fabico de concreto?<\/strong><\/p><p>R: Para microfibras de PP (controle de fissuras), a dosagem padr\u00e3o \u00e9 de 0,6\u20130,9 kg\/m\u00b3. Para macrofibras estruturais de PP, a dosagem varia de 3\u201310 kg\/m\u00b3, dependendo do n\u00edvel de desempenho exigido. Em pisos industriais, normalmente utiliza-se 5\u20137 kg\/m\u00b3.<\/p><p><strong>P: Posso usar refor\u00e7o de fibra em vez de tela de a\u00e7o?<\/strong><\/p><p>R: Sim \u2014 a fibra sint\u00e9tica macro, com densidade de 5 a 7 kg\/m\u00b3, pode substituir a tela de arame soldado convencional em muitas aplica\u00e7\u00f5es de laje sobre solo. Essa \u00e9 uma pr\u00e1tica padr\u00e3o na constru\u00e7\u00e3o de pisos de armaz\u00e9ns e instala\u00e7\u00f5es industriais. No entanto, a fibra n\u00e3o pode substituir o vergalh\u00e3o estrutural em vigas, pilares ou lajes suspensas sem uma an\u00e1lise completa de engenharia estrutural.<\/p><p><strong>P: Qual \u00e9 a dosagem m\u00e1xima de fibra antes que surjam problemas de trabalhabilidade?<\/strong><\/p><p>R: Para macrofibras sint\u00e9ticas, o limite superior pr\u00e1tico situa-se em torno de 8\u201310 kg\/m\u00b3 sem ajustes significativos no plastificante. Acima desse valor, a perda de assentamento torna-se dif\u00edcil de controlar sem alterar os princ\u00edpios b\u00e1sicos do projeto da mistura.<\/p><p><strong>P: Como fa\u00e7o para misturar fibras no concreto sem que elas formem bolas ou aglomerados?<\/strong><\/p><p>R: Adicione a fibra ao misturador ap\u00f3s a incorpora\u00e7\u00e3o do agregado e de aproximadamente 80% de \u00e1gua. Misture por no m\u00ednimo 90 segundos ap\u00f3s a adi\u00e7\u00e3o da fibra. Evite adicionar fibra ao agregado seco. No caso de fibra fibrilada, certifique-se de que o transportador helicoidal da central de bet\u00e3o esteja ajustado para a taxa de alimenta\u00e7\u00e3o correta.<\/p><p><strong>P: A dosagem de fibra \u00e9 a mesma para todos os tipos de concreto?<\/strong><\/p><p>R: N\u00e3o. As misturas de concreto de alta resist\u00eancia (C40+) podem permitir dosagens ligeiramente menores de macrofibras para atingir o mesmo desempenho, j\u00e1 que a pr\u00f3pria matriz do concreto \u00e9 mais resistente. Para misturas padr\u00e3o C25\u2013C30, utilize sempre a dosagem total recomendada.<\/p><p><strong>P: Como calculo a necessidade de fibras para uma aplica\u00e7\u00e3o de concreto projetado?<\/strong><\/p><p>R: Utilize o mesmo c\u00e1lculo de dosagem em kg\/m\u00b3 que se aplica ao concreto moldado no local. Leve em considera\u00e7\u00e3o o rebote (normalmente de 10 a 20% para fibras de a\u00e7o em concreto projetado de mistura seca), aumentando a quantidade do pedido de acordo com isso. No caso do concreto projetado de mistura \u00famida, o rebote \u00e9 menor.<\/p><p><strong>P: O que acontece se a dosagem for muito baixa?<\/strong><\/p><p>R: A subdosagem \u00e9 a principal causa das reclama\u00e7\u00f5es relacionadas ao refor\u00e7o com fibras em campo. Com dosagens insuficientes, o controle de fissuras ser\u00e1 ineficaz e voc\u00ea observar\u00e1 o mesmo padr\u00e3o de fissura\u00e7\u00e3o do concreto n\u00e3o refor\u00e7ado. Existe um efeito de limiar \u2014 passar de 0 para 0,3 kg\/m\u00b3 traz um benef\u00edcio m\u00ednimo; \u00e9 necess\u00e1ria toda a faixa de 0,6 a 0,9 kg\/m\u00b3 para um controle mensur\u00e1vel da retra\u00e7\u00e3o pl\u00e1stica.<\/p><p><!-- notionvc: 62a49055-9be4-4f07-886f-7975ea4cfa53 --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b168328 elementor-widget elementor-widget-heading\" data-id=\"b168328\" data-element_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\">Obtenha uma recomenda\u00e7\u00e3o de dosagem personalizada<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d83a0ef elementor-widget elementor-widget-text-editor\" data-id=\"d83a0ef\" data-element_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>Cada projeto \u00e9 diferente. A espessura da laje, as condi\u00e7\u00f5es de carga, a qualidade da sub-base e a classe de exposi\u00e7\u00e3o s\u00e3o fatores que influenciam a dosagem ideal de fibras.<\/p><p>Nossa equipe t\u00e9cnica vem projetando sistemas de fibra \u00f3ptica h\u00e1 mais de\u00a0<strong>Mais de 500 projetos em 30 pa\u00edses<\/strong>\u00a0\u2014 desde pequenas obras comerciais at\u00e9 grandes contratos de infraestrutura.<\/p><p><a href=\"https:\/\/tenabrix.com\/pt\/contato\/\" target=\"_blank\" rel=\"noopener\"><strong>Solicite uma consulta t\u00e9cnica gratuita \u2192<\/strong><\/a><\/p><p>Inclua os detalhes do seu projeto \u2014 tipo de aplica\u00e7\u00e3o, dimens\u00f5es da laje, carga de projeto \u2014 e forneceremos recomenda\u00e7\u00f5es espec\u00edficas de dosagem e uma compara\u00e7\u00e3o preliminar de custos em at\u00e9 24 horas.<\/p><p><!-- notionvc: b6d08989-e204-4ebb-91b9-6f71e09956fa --><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d62f0e6 elementor-widget elementor-widget-heading\" data-id=\"d62f0e6\" data-element_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\">Leitura complementar<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3071893 elementor-widget elementor-widget-text-editor\" data-id=\"3071893\" data-element_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<ul><li><a href=\"https:\/\/tenabrix.com\/pt\/guia-completo-de-reforco-de-fibra-de-concreto\/\" target=\"_blank\" rel=\"noopener\">O guia completo para a escolha do refor\u00e7o de fibra de concreto<\/a>\u00a0\u2014 Vis\u00e3o geral completa dos tipos de fibra e estrutura de sele\u00e7\u00e3o<\/li><li><a href=\"https:\/\/tenabrix.com\/pt\/tipos-de-fibra\/macrofibra-de-polipropileno-pp\/\" target=\"_blank\" rel=\"noopener\">P\u00e1gina do produto: Fibra macro de polipropileno<\/a>\u00a0\u2014 Especifica\u00e7\u00f5es t\u00e9cnicas, dados de testes, refer\u00eancias de projetos<\/li><li><a href=\"https:\/\/tenabrix.com\/pt\/tipos-de-fibra\/anuncios-de-fibra-de-poliacrilonitrila\/\" target=\"_blank\" rel=\"noopener\">P\u00e1gina do produto PAN Fiber<\/a>\u00a0\u2014 Fibra de alto desempenho para aplica\u00e7\u00f5es exigentes<\/li><li><a href=\"https:\/\/tenabrix.com\/pt\/macrofibra-vs-fibra-de-aco-para-pisos-industriais-explicacao-das-principais-diferencas\/\" target=\"_blank\" rel=\"noopener\">Fibra macro x fibra de a\u00e7o: principais diferen\u00e7as<\/a>\u00a0\u2014 Compara\u00e7\u00e3o lado a lado de pisos industriais<\/li><li><a href=\"https:\/\/tenabrix.com\/pt\/fibra-de-polipropileno-micro-vs-macro-para-concreto\/\" target=\"_blank\" rel=\"noopener\">Fibra de polipropileno micro versus macro<\/a>\u00a0\u2014 Quando usar cada tipo<\/li><\/ul><p><!-- notionvc: 317ee407-b7c1-49bc-8166-747db47eb997 --><\/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-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\">Entre em contato com nossa equipe t\u00e9cnica \u2192<\/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 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class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tPublica\u00e7\u00f5es relacionadas\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-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\">\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\">\n\t\t\t\t<div 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2026\t\t<\/span>\n\t\t\t\t<span class=\"elementor-post-avatar\">\n\t\t\tNenhum coment\u00e1rio\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-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\tProdutos de fibra\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-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\/pt\/tipos-de-fibra\/microfibra-sintetica-de-polipropileno\/\" 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\">Microfibra sint\u00e9tica<\/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\/pt\/tipos-de-fibra\/macrofibra-de-polipropileno-pp\/\" 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\">Macrofibra sint\u00e9tica<\/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\/pt\/tipos-de-fibra\/fibra-fibrilada-de-polipropileno\/\" 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\">Fibra Fibrilada<\/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\/pt\/tipos-de-fibra\/macrofibra-sintetica-torcida\/\" 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\">Fibra macro-sint\u00e9tica torcida<\/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>Getting the fiber dosage right is one of the most critical decisions in any concrete mix design. Too little fiber and you won&#8217;t achieve the<\/p>","protected":false},"author":3,"featured_media":4323,"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":[44,90,30],"class_list":["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"],"_links":{"self":[{"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/posts\/9145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/comments?post=9145"}],"version-history":[{"count":4,"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/posts\/9145\/revisions"}],"predecessor-version":[{"id":9151,"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/posts\/9145\/revisions\/9151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/media\/4323"}],"wp:attachment":[{"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/media?parent=9145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/categories?post=9145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tenabrix.com\/pt\/wp-json\/wp\/v2\/tags?post=9145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}