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Betão auto-adensável com cinza volante e sílica ativa

Betão auto-adensável com cinza volante e sílica ativa

          
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About the Book

O betão auto-adensável (SCC) é uma mistura de betão fluido sem segregação e compacta sob o seu próprio peso. O betão auto-adensável tem propriedades frescas como a capacidade de passagem, a capacidade de enchimento e a resistência à segregação. Nesta investigação experimental, os ensaios são realizados para determinar as propriedades mecânicas e de durabilidade do betão auto-adensável, contendo cimento Portland ordinário parcialmente substituído por cinzas volantes e sílica ativa. O desempenho da mistura de betão em termos de caraterísticas mecânicas e de durabilidade para o betão de grau M40 e a relação a/c é de 0,38 constante em todas as misturas. O cimento é substituído por cinzas volantes (ou seja, 5%, 10%, 15%, 20%, 25%, 30%), depois de obter o valor ótimo e o cimento é substituído por sílica ativa (ou seja, 2,5%, 5%, 7,5%, 10%) e 2% de super plastificante é usado em todas as misturas para obter uma trabalhabilidade específica. As caraterísticas de durabilidade devem ser avaliadas tão cuidadosamente como as outras propriedades mecânicas. Os resultados mostraram uma boa relação entre a resistência e a durabilidade do betão auto-adensável quando comparado com o betão convencional.


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Product Details
  • ISBN-13: 9786207954131
  • Publisher: KS Omniscriptum Publishing
  • Publisher Imprint: Edicoes Nosso Conhecimento
  • Height: 229 mm
  • No of Pages: 52
  • Spine Width: 3 mm
  • Width: 152 mm
  • ISBN-10: 6207954130
  • Publisher Date: 17 Aug 2024
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 91 gr


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