Tubos
24 de dezembro de 2020Fabricação De Tubos De Concreto
Depois de o concreto ser despejado nas fôrmas de moldagem das peças é feito o adensamento por meio dos efeitos vibratórios com o uso de vibradores eletro-mecânicos especialmente projetados para esta finalidade. Conheça nosso aditivo bloco de concreto aqui. O ar incorporado no concreto é retirado, propiciando a acomodação dos agregados miúdos e graúdos.
Execução de obras de esgoto sanitário e drenagem de águas pluviais utilizando-se tubos e aduelas de concreto. Nossos tubos de concreto são construídos para atender todas as classes de resistência, das mais simples às especiais, e podem ser usados em redes de escoamento e drenagem de água e esgoto. A fabricação e inspeção dos tubos devem ser regidas pela ABNT NBR 8.890 – tubo de concreto de seção circular para águas pluviais e esgotos sanitários – Requisitos e métodos de ensaio.
Como qualquer outra estrutura de concreto, os tubos possuem metodologia própria e muito bem definida para seu dimensionamento estrutural, que deve atender aos estados limites último e de serviço, conforme previsto na ABNT NBR 6.118. As partes de baixo das bolsas e das pontas dos tubos são na maioria das vezes, argamassadas de forma deficiente ou simplesmente não argamassadas, devido à dificuldade de acesso a estes pontos. O que ocorre na maioria das vezes é que estes poluentes carregados pelas águas pluviais se infiltram através das falhas nas juntas e, ou contaminam o lençol freático, ou solapam o solo produzindo verdadeiras crateras. Na hora de comprar tubo de concreto , a Diblocos pode fornecer todas as opções de juntas e diâmetros, para tubos simples e armados.
A escolha de tubos de concreto para utilização nas rodovias e ferrovias americanas se deve principalmente à expectativa de vida útil de 100 anos ou mais, e à possibilidade que se tem de cravar os tubos sob aterros sem provocar problemas ao tráfego. No Brasil os tubos de concreto também têm sido utilizados em galerias e bueiros, como uma alternativa bastante eficiente, tanto quanto em esgoto ou galerias de águas pluviais.
Há mais de 100 anos, os tubos de concreto de seção circular são utilizados, principalmente, para captar e transportar águas pluviais e esgoto sanitário. Eles são condutos rígidos, com estrutura própria que resulta na capacidade resistente para suportar os esforços decorrentes aditivo paredes de concreto das cargas permanentes e cargas acidentais (sobrecargas rodoviárias, ferroviárias, aeroviárias e demais sobrecargas decorrentes de sua utilização).
Os tubos de concreto são estruturas circulares pré-moldadas de concreto, utilizados em galerias de águas pluviais, drenagem de aeroportos e rodovias, galerias, boeiros e no sistema de esgoto sanitário. Águas Pluviais – Os tubos de concreto foram desenvolvidos para atender à demanda por sistemas de esgotos sanitários, tornando possível o crescimento qualitativo das grandes cidades. No Brasil, os tubos de concreto para esgotos sanitários têm sido muito utilizados, podendo ser produzidos com ou sem armadura, em diâmetros de 400 mm a 2.500 mm.
Tubo De Concreto, Por Que Escolher
Esta Norma fixa os requisitos exigíveis para fabricação e aceitação de tubos de concreto e respectivos acessórios, segundo as suas classes e dimensões, destinados a condução de águas pluviais, esgoto sanitário e efluentes industriais. Podem ser produzidos tubos de classes de resistências superiores às especificadas nesta Norma, devendo atender aos requisitos estabelecidos nas Seções 4 e 5.
A fabricação de um tubo de concreto é um processo que depende de diversos fatores e informações, sendo que a principal delas é aplicação para a qual se destina. Para redes de água pluvial e esgoto sanitário é necessário conhecer a vazão requerida em projeto, o raio hidráulico das peças, o tipo de fluido que escoará em seu interior, condições de assentamento em obra, cargas atuantes sobre a peça, etc. Para redes de infraestrutura de serviços os fatores influentes são os mesmos, sem contar a especificação das redes que passarão no interior das peças e se a rede de tubos comporá um sistema visitável ou não.
Basicamente, os tubos de concreto podem ser divididos em tubos de concreto simples e tubos de concreto armado. Os tubos de concreto com diâmetros maiores que 400 mm, são a melhor alternativa para as obras de esgoto, devido à sua excelente relação benefício / custo.
Quase todas as cidades norte-americanas utilizam tubos de concreto em diâmetros que variam de 100 mm, para ligações prediais, até 4.000 mm, em coletores tronco. Para águas pluviais ou esgotos sanitários podem ser fabricados com DN 200 a 1.000 mm e devem ser identificados com a palavra “fibra”, gravada no concreto ainda fresco. Para águas pluviais ou esgotos sanitários podem ser fabricados com DN 200 a 2.000 mm. Para águas pluviais ou esgotos sanitários podem ser fabricados com DN (diâmetro nominal) 200 a 600 mm.
Tipo ponta e bolsa com anel de borracha praticamente indeformável, resultando em um encaixe perfeito. • Galerias técnicas para passagem de pessoas e/ou infraestrutura de cabos e redes de telecomunicação. 2- Tubos de diâmetro acima de DN 600 devem ter algum tipo de reforço estrutural, seja com barras, telas, fibras de aço, ou a combinação entre eles. Tubo armado com barras ou telas de aço soldadas e com reforço secundário de fibras de aço. Ao navegar neste site, você aceita os cookies que usamos para melhorar sua experiência.
Tubos De Concreto Com Junta Incorporada
Todos com nota fiscal direto do fabricante, com logística própria e qualidade do produto garantida por laudos técnicos.
Também chamados de manilhas de concreto, tubos de galeria ou aduelas são artefatos de concreto utilizados para captação e escoamento de águas pluviais, esgotos sanitários, efluentes industriais, canalização de córregos e galerias e drenagem de áreas propensas a alagamentos.
Nos tubos de concreto para condução de água pluvial o uso de juntas elásticas é facultativo, considerando que a sua utilização garante uma maior estanqueidade do fluido conduzido no seu interior.
Normalmente possuem o sistema de encaixe do Tipo Ponta e Bolsa e as juntas são rígidas, onde o rejuntamento é feito com argamassa de areia e cimento. Possuem comprimento útil de 1,50 metros e são fabricados com diâmetros nominais internos que variam de 300 à 2.000 mm, com variações de 100 em 100 mm. Os tubos de concreto simples possuem diâmetro entre 200mm e 600mm e são do tipo ponta e bolsa e 500 e 600 são do tipo macho e fêmea. São classificados em PS1 e PS2, sendo a maior numeração indicado a maior resistência.
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