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Numerical Evaluation on the Filtration and Clogging Behavior of Porous Pavement

  • Guoyang Lu
  • Guoxiang Zhou
  • Dawei Wang
  • Jing Zhong
  • Markus Oeser
Conference paper

Abstract

To avoid the floods in urban pavement system, the use of permeable pavement is increasingly considered as an effective way to optimize the existing sealed pavement. Porous Asphalt (PA) has constituted the permeable pavement infrastructure for years, which can realize the fast infiltration and precipitation of surface water through layers. But the poor durability is the main obstacle inhibits the application of conventional PA. The substitution of the innovative Polyurethane binder can perform excellent mechanical property as well as the permeability. Apart from it, the filtration property is found effectively to reduce the quantity of particulate matter (PM) flooded by the rainfall. In this study, the filtration and clogging behavior of PU-bonded pavement under different concentration gradient of PM are quantified. Both filtration property and hydraulic conductivity are predicted by numerical modelling and adopted as comparative indexes. Results indicate that PU-Bonded permeable pavement has significant hydraulic conductivity and the effective absorptive-filtration performance for the contaminant of flow. The numerical modelling can well conduct the prediction of filtration and clogging performance of permeable pavement.

Keywords

Filtration Porous Asphalt Permeable pavement Hydraulic conductivity Porosity Polyurethane 

Notes

Acknowledgement

The work underlying this project was carried out under at the request of the German Research Foundation (DFG), under research project No. OE 514/4-1.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Guoyang Lu
    • 1
  • Guoxiang Zhou
    • 2
  • Dawei Wang
    • 1
    • 3
  • Jing Zhong
    • 2
  • Markus Oeser
    • 1
  1. 1.Institute of Highway EngineeringRWTH Aachen UniversityAachenGermany
  2. 2.School of Civil EngineeringHarbin Institute of TechnologyHarbinPeople’s Republic of China
  3. 3.School of Transportation Science and EngineeringHarbin Institute of TechnologyHarbinPeople’s Republic of China

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