{"id":17220,"date":"2026-07-07T14:28:05","date_gmt":"2026-07-07T17:28:05","guid":{"rendered":"https:\/\/www.wgbengenharia.com\/protecao-concreto-estrutural\/"},"modified":"2026-07-07T14:28:05","modified_gmt":"2026-07-07T17:28:05","slug":"protecao-concreto-estrutural","status":"publish","type":"post","link":"https:\/\/www.wgbengenharia.com\/en\/protecao-concreto-estrutural\/","title":{"rendered":"Carbonation and Chlorides: Protect the Structure of Your Property"},"content":{"rendered":"<h2>The challenge of structural durability.<\/h2>\n<p>Structural pathologies represent a silent risk to your property. <strong>Carbonation of concrete<\/strong> Chloride attack is the main culprit in reduced durability. Therefore, understanding these processes is crucial to preventing serious breakdowns.<\/p>\n<h2>Understanding carbonation<\/h2>\n<p>Concrete naturally has a high pH. This keeps the steel reinforcement passivated and protected against oxidation. However, carbon dioxide penetrates the pores of the concrete over the years. Consequently, the pH drops drastically and the steel becomes depassivated. In addition, corrosion of the reinforcement generates expansion and causes spalling of the concrete.<\/p>\n<h2>The severe impact of chlorides<\/h2>\n<p>On the other hand, chloride attack is even more aggressive in coastal regions. For example, the sea spray that affects the structures of <strong>Brave Beach<\/strong> It accelerates the oxidation of steel immediately. Unlike carbonation, chlorides attack the steel in specific locations. In this way, they create what are called pits, which reduce the cross-sectional area of the reinforcement without warning.<\/p>\n<h2>Standardization and prevention<\/h2>\n<p>To mitigate these problems, we strictly follow the parameters of <strong>NBR 6118<\/strong>. This standard establishes clear criteria for nominal concrete cover for each environmental aggressiveness class. Therefore, the structural design must provide for concretes with low porosity and high strength. Furthermore, preventive maintenance avoids exorbitant costs associated with structural reinforcements.<\/p>\n<h2>Warning signs: cracks and corrosion<\/h2>\n<p>Have you noticed diagonal cracks or rust stains on your ceiling? Often, these signs indicate that corrosion has reached a critical stage. Consequently, the structure loses its load-bearing capacity and may experience differential settlement. For example, a lack of waterproofing exacerbates these problems. Therefore, diagnosing the problem early is the only way to save the integrity of your building.<\/p>\n<h2>Intervention strategy<\/h2>\n<p>WGB Arquitetura e Engenharia utilizes cutting-edge technologies in structural diagnostics. Therefore, we perform carbonation tests and corrosion mapping with absolute precision. Furthermore, we apply corrosion inhibitors and high-performance repair concretes. Consequently, we restore the necessary safety to your investment.<\/p>\n<p>Its structure demands engineering solutions that withstand the elements and the harshness of the coastal environment. To protect your investment, rely on us. <a href=\"https:\/\/www.wgbengenharia.com\/en\/engenheiro-estrutural-na-wgb\/\">WGB in Itaja\u00ed<\/a> and ensure absolute longevity for your project.<\/p>","protected":false},"excerpt":{"rendered":"<p>O desafio da durabilidade estrutural As patologias estruturais representam um risco silencioso para o seu patrim\u00f4nio. A carbonata\u00e7\u00e3o do concreto e o ataque de cloretos s\u00e3o os principais vil\u00f5es da durabilidade. Portanto, entender esses processos \u00e9 fundamental para evitar colapsos graves. Entendendo a carbonata\u00e7\u00e3o O concreto possui naturalmente um pH elevado. Dessa forma, ele mant\u00e9m a armadura de a\u00e7o passivada e protegida contra a oxida\u00e7\u00e3o. No entanto, o g\u00e1s carb\u00f4nico penetra nos poros do concreto com o passar dos anos. Consequentemente, o pH cai drasticamente e ocorre a despassiva\u00e7\u00e3o do a\u00e7o. Al\u00e9m disso, a corros\u00e3o das armaduras gera expans\u00e3o e causa o desplacamento do concreto. O impacto severo dos cloretos Por outro lado, o ataque por cloretos \u00e9 ainda mais agressivo em regi\u00f5es litor\u00e2neas. Por exemplo, a maresia que atinge as estruturas da Praia Brava acelera a oxida\u00e7\u00e3o do a\u00e7o de forma imediata. Diferente da carbonata\u00e7\u00e3o, os cloretos atacam pontualmente o a\u00e7o. Dessa forma, eles criam as chamadas pites, que reduzem a se\u00e7\u00e3o transversal da armadura sem aviso pr\u00e9vio. Normatiza\u00e7\u00e3o e preven\u00e7\u00e3o Para mitigar esses problemas, seguimos rigorosamente os par\u00e2metros da NBR 6118. Esta norma estabelece crit\u00e9rios claros de cobrimento nominal para cada classe de agressividade ambiental. Portanto, o projeto estrutural deve prever concretos com baixa porosidade e alta resist\u00eancia. Al\u00e9m disso, a manuten\u00e7\u00e3o preventiva evita custos exorbitantes com refor\u00e7os estruturais. Sinais de alerta: trincas e corros\u00e3o Voc\u00ea observou fissuras diagonais ou manchas de ferrugem no seu teto? Frequentemente, esses sinais indicam que a corros\u00e3o j\u00e1 atingiu um est\u00e1gio cr\u00edtico. Logo, a estrutura perde sua capacidade de carga e pode apresentar recalques diferenciais. Por exemplo, a falta de cuidado com a impermeabiliza\u00e7\u00e3o exacerba esses problemas. Portanto, diagnosticar a patologia precocemente \u00e9 a \u00fanica forma de salvar a integridade da sua edifica\u00e7\u00e3o. Estrat\u00e9gia de interven\u00e7\u00e3o A WGB Arquitetura e Engenharia utiliza tecnologias de ponta no diagn\u00f3stico de estruturas. Dessa forma, realizamos ensaios de carbonata\u00e7\u00e3o e mapeamento de corros\u00e3o com precis\u00e3o absoluta. Al\u00e9m disso, aplicamos inibidores de corros\u00e3o e concretos de reparo de alta performance. Consequentemente, devolvemos a seguran\u00e7a necess\u00e1ria para o seu investimento. Sua estrutura exige solu\u00e7\u00f5es de engenharia que combatem o tempo e a agressividade do ambiente costeiro. Para blindar seu investimento, conte com a WGB em Itaja\u00ed e garanta longevidade absoluta para o seu projeto.<\/p>","protected":false},"author":3,"featured_media":17219,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-17220","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sem-categoria"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>WGB Architecture &amp; Engineering | High-End Projects in Brazil<\/title>\n<meta name=\"description\" content=\"Solid expertise with over 750,000m\u00b2 of excellence designed in Santa Catarina. 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