Structural analysis of reinforced asphalt pavement by impregnated surface geotextile

Authors

  • Juliana de Paula Rezende Universidade Federal de Viçosa
  • Heraldo Nunes Pitanga Universidade Federal de Viçosa
  • Taciano Oliveira da Silva Universidade Federal de Viçosa
  • Geraldo Luciano de Oliveira Marques Universidade Federal de Juiz de Fora
  • Géssica Soares Pereira Universidade Federal de Viçosa

DOI:

https://doi.org/10.14295/transportes.v28i3.2203

Keywords:

Composite hot asphalt mixtures. Geosynthetic reinforcement. Geotextile. Surface impregnation. Structural analysis.

Abstract

The present research contemplated the mechanistic-empirical analysis of unreinforced and reinforced asphalt pavements by impregnated surface geotextile. The mechanical properties determined in the laboratory derive from the tensile strength by diametral compression (TS), resilient modulus (RM) and fatigue life (Nf) tests. Insertion of the reinforcement into the asphalt mixture provided TS and RM increments, as well as reducing the risk of fatigue cracking. In the structural analyzes, horizontal tensile stresses and vertical compression stresses at the lower edge of the binder course were verified. The analysis based on the statically determined mechanical strength parameter (TS) showed a structural superiority of the unreinforced system compared to the geotextile reinforced system, in contrast to the analysis based on the dynamically determined structural response parameter (Nf). It is assumed that, because it does not translate the mobilized strength by asphalt concrete under dynamic loading condition, the structural safety analysis based on static properties masks the improvements generated by the geosynthetic reinforcement.

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Author Biographies

Juliana de Paula Rezende, Universidade Federal de Viçosa

Departamento de Engenharia Civil

Área: Infraestrutura de Transportes

Doutoranda

Heraldo Nunes Pitanga, Universidade Federal de Viçosa

Departamento de Engenharia Civil

Taciano Oliveira da Silva, Universidade Federal de Viçosa

Departamento de Engenharia Civil

Geraldo Luciano de Oliveira Marques, Universidade Federal de Juiz de Fora

Departamento de Transportes e Geotecnia

Géssica Soares Pereira, Universidade Federal de Viçosa

Departamento de Engenharia Civil

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Published

2020-12-15

How to Cite

Rezende, J. de P., Pitanga, H. N., da Silva, T. O., Marques, G. L. de O., & Pereira, G. S. (2020). Structural analysis of reinforced asphalt pavement by impregnated surface geotextile. TRANSPORTES, 28(5), 185–198. https://doi.org/10.14295/transportes.v28i3.2203

Issue

Vol. 28 No. 5 (2020)

Section

Artigos

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