Analyzing the effects of clogging of PA internal structure with artificial soiling experiments

Stefan Alber, Wolfram Ressel, Pengfei Liu, Guoyang Lu, Dawei Wang, Markus Oeser

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)


Clogging of porous asphalt (PA) pavements as a result of long-term soiling effects is a well-known phenomenon in road construction. This kind of deterioration effect causes a gradual loss of noise reduction and drainage which are the extraordinary functional properties of PA. In order to quantify and better understand the impacts of soiling on PA properties a methodology of systematic artificial soiling experiments is presented in this paper in detail. Different questions concerning the methodology and the whole testing set-up like dirt composition and application, artificial rainfall or dirt trapping facilities are discussed with a special glance at the laboratory testing conditions which take place in a controlled way to be comparable and as close to reality as possible, feasible and useful. Some demonstrative results of the artificial soiling tests like wash-out of dirt or the impacts on pore structure, drainage and sound absorption (as part of the noise-reducing effect) are shown exemplarily and/or referenced.

Original languageEnglish
Pages (from-to)383-393
Number of pages11
JournalInternational Journal of Transportation Science and Technology
Issue number4
Publication statusPublished - Dec 2019
Externally publishedYes


  • Acoustical properties
  • Artificial soiling experiments
  • Drainage properties
  • Pore structure
  • Porous asphalt

ASJC Scopus subject areas

  • Transportation
  • Automotive Engineering
  • Civil and Structural Engineering
  • Management, Monitoring, Policy and Law


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