Desempenho de solos de sub-base com fibras reforçadas em pavimentos
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Desempenho de solos de sub-base com fibras reforçadas em pavimentos

Desempenho de solos de sub-base com fibras reforçadas em pavimentos


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About the Book

Este livro estuda os benefícios do reforço dos solos de sub-base em pavimentos flexíveis, onde foram utilizados dois tipos diferentes de fibras (fibra de juta e de polipropileno), que foram misturadas aleatoriamente com dois tipos diferentes de solo, e em seguida foi efectuada uma série de ensaios Proctor, ensaios de compressão não confinada, ensaios de California Bearing Ratio (CBR) e ensaios Triaxail para avaliar a resistência à compressão e a resistência ao cisalhamento do solo de sub-base. Ambas as fibras foram adicionadas em várias percentagens (0,5% a 1,5%) por peso seco do solo e foram utilizadas para melhorar a resistência do solo. O valor CBR aumenta com o aumento do teor de fibras até uma determinada percentagem, mas diminui com a adição de mais fibras em ambos os solos. O ensaio de resistência à compressão não confinada foi efectuado para verificar o aumento da resistência à compressão quando a pressão de confinamento é zero. Verificou-se que a percentagem óptima que dá o máximo de CBR e de resistência à compressão é 0,75% de fibra de juta e 1,0% de fibra de PP para ambos os tipos de solo. A adição de fibra resulta numa menor espessura do pavimento devido ao aumento do CBR da mistura e, por conseguinte, a economia da construção da autoestrada será alcançada.


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Product Details
  • ISBN-13: 9786208051075
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 136 gr
  • ISBN-10: 620805107X
  • Publisher Date: 04 Sep 2024
  • Height: 229 mm
  • No of Pages: 84
  • Spine Width: 5 mm
  • Width: 152 mm


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