2016
DOI: 10.1016/j.trgeo.2016.05.001
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Resilient modulus of fine-grained soil and a simple testing and calculation method for determining an average resilient modulus value for pavement design

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Cited by 33 publications
(15 citation statements)
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“…When applying the load to a constant penetration depth of 2.54 mm, according to the CBR standard test, high stress values are observed in the plunger, exceeding the maximum load bearing capacity of the material for many soil types. Soil is a natural, heterogeneous and discontinuous environment, the deformation behavior, strength as well as variability of mechanical properties depend on many factors-e.g., the genesis, soil type, lay-off of unbound materials, compaction rate [26,27] given by the Proctor Standard energy, the liquid phase amount [12], the number of repeated loading cycles as well as on maximum load bearing capacity. The resilient modulus must reflect these factors [28] and be obtained from an adequate laboratory test, in which the future loading by repeated passages of transport vehicles is realistically simulated with the future stress interval in the structure.…”
Section: Laboratory Analysis-cyclic Cbr Testsmentioning
confidence: 99%
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“…When applying the load to a constant penetration depth of 2.54 mm, according to the CBR standard test, high stress values are observed in the plunger, exceeding the maximum load bearing capacity of the material for many soil types. Soil is a natural, heterogeneous and discontinuous environment, the deformation behavior, strength as well as variability of mechanical properties depend on many factors-e.g., the genesis, soil type, lay-off of unbound materials, compaction rate [26,27] given by the Proctor Standard energy, the liquid phase amount [12], the number of repeated loading cycles as well as on maximum load bearing capacity. The resilient modulus must reflect these factors [28] and be obtained from an adequate laboratory test, in which the future loading by repeated passages of transport vehicles is realistically simulated with the future stress interval in the structure.…”
Section: Laboratory Analysis-cyclic Cbr Testsmentioning
confidence: 99%
“…For the second and third design levels where the daily intensity is a maximum of 400 heavy vehicles, this test is not recommended for its complexity and it is possible to replace M r with the so-called design modulus E D , determined from other soil characteristics, e.g., the CBR [7]. However, this pavement layers design based on the subgrade CBR has gradually become insufficient even for the second and third design levels, because it does not describe the real deformation behavior of the material, does not allow using new materials, assessing the layer thickness, and using numerical analyses and thus minimizing the consumption of natural nonrenewable resources [11,12]. Last but not least, this design method does not allow including climatic conditions in the design [13].…”
Section: Introductionmentioning
confidence: 99%
“…O que comprova que os solos tropicais não são bem representados pelos sistemas de classificação tradicionais, como no caso a classificação SUCS. Os resultados das correlações estatísticas mostraram que o modelo sugerido pela NCHRP (2004) apresentou os melhores ajustes matemáticos, sendo os seus parâmetros mais confiáveis. Além desse, o modelo composto, que é geralmente utilizado por projetistas no Brasil, também mostrou boa adequabilidade para a maioria dos solos.…”
Section: Previsão Do Módulo De Resiliênciaunclassified
“…A peculiaridade dos solos tropicais e a falha na classificação por parte dos sistemas de classificações internacionais foram evidentes ao se comparar os valores sugeridos pela NCHRP (2004). Todos os materiais apresentaram valores de MR superiores ao descrito em norma no que se refere aos solos empregados em subleitos rodoviários.…”
Section: Previsão Do Módulo De Resiliênciaunclassified
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