Encontrados 8 documentos, a visualizar página 1 de 1
The prediction of fatigue life using the k1-k2 relationship
Pais, Jorge C.; Pereira, Paulo A. A.; Minhoto, Manuel J. C.; Fontes, Liseane P. T. L.; Kumar, D. S. N. V. A.; Silva, B. T. A.Fatigue resistance is used in the analysis and design of pavements to predict their life cycle. It is evaluated through time consuming laboratory tests, mainly when performed at very low strain levels. At low strain levels the testing time can last more than one day. Due to the heterogeneity of the material, a large number of samples are tested during days or weeks. The results of fatigue tests are expressed in...
Application of plateau value to predict fatigue life
Pais, Jorge C.; Pereira, Paulo A. A.; Minhoto, Manuel J. C.; Fontes, L. P. T. L.; Kumar, D. S. N. V. A.; Silva, B. T. A.Fatigue resistance of asphalt mixtures represents an important parameter for pavement design. This fatigue resistance is calculated through laboratory tests which require some time depending on the strain level applied to the specimen. For very low strain levels, identical to the one installed in the pavement, one test may last more than one week depending on the testing frequency. The time needed for the devel...
Analysis of the variation in the fatigue life through four-point bending tests
Pais, Jorge C.; Fontes, Liseane P. T. L.; Pereira, Paulo A. A.; Minhoto, Manuel J. C.; Kumar, D. S. N. V. A.; Silva, B. T. A.The fatigue resistance of asphalt mixtures is calculated through laboratory tests which require some time depending on the strain level applied to the specimen. For very low strain levels, identical to the one installed in the pavement of this study, one test may last more than one week depending on the testing frequency. The time needed for the development of the fatigue law may last longer. The number of spec...
Analysis of the variation in the stiffness modulus through four-point bending t...
Pais, Jorge C.; Pereira, Paulo A. A.; Minhoto, Manuel J. C.; Fontes, Liseane P. T. L.; Kumar, D. S. N. V. A.; Silva, B. T. A.Pavement layers are characterized by basic material properties, among which the stiffness modulus and the Poisson ratio assume a preponderant importance in linear elastic anal-ysis. The stiffness modulus is usually assessed through samples extracted from a pavement or prepared in laboratory. The number of specimens used to calculate the stiffness modulus of an asphalt mixture plays an important role in the prec...
The prediction of fatigue life using the k1-k2 relationship
Pais, Jorge; Pereira, Paulo; Minhoto, Manuel; Fontes, Liseane; Kumar, D.S.N.V.A.; Silva, B.T.A.Fatigue resistance is used in the analysis and design of pavements to predict their life cycle. It is evaluated through time consuming laboratory tests, mainly when performed at very low strain levels. At low strain levels the testing time can last more than one day. Due to the heterogeneity of the material, a large number of samples are tested during days or weeks. The results of fatigue tests are expressed in...
Application of plateau value to predict fatigue life
Pais, Jorge; Pereira, Paulo; Minhoto, Manuel; Fontes, Liseane; Kumar, D.S.N.V.A.; Silva, B.T.A.Fatigue resistance of asphalt mixtures represents an important parameter for pavement design. This fatigue resistance is calculated through laboratory tests which require some time depending on the strain level applied to the specimen. For very low strain levels, identical to the one installed in the pavement, one test may last more than one week depending on the testing frequency. The time needed for the devel...
Analysis of the variation in the fatigue life through four-point bending tests
Pais, Jorge; Pereira, Paulo; Minhoto, Manuel; Fontes, Liseane; Kumar, D.S.N.V.A.; Silva, B.T.A.The fatigue resistance of asphalt mixtures is calculated through laboratory tests which require some time depending on the strain level applied to the specimen. For very low strain levels, identical to the one installed in the pavement of this study, one test may last more than one week depending on the testing frequency. The time needed for the development of the fatigue law may last longer. The number of spec...
Analysis of the variation in the stiffness modulus through four point bending t...
Pais, Jorge; Pereira, Paulo; Minhoto, Manuel; Fontes, Liseane; Kumar, D.S.N.V.A.; Silva, B.T.A.Pavement layers are characterized by basic material properties, among which the stiffness modulus and the Poisson ratio assume a preponderant importance in linear elastic analysis. The stiffness modulus is usually assessed through samples extracted from a pavement or prepared in laboratory. The number of specimens used to calculate the stiffness modulus of na asphalt mixture plays an important role in the preci...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||