Influence of engineering properties of porous asphalt concrete on long-term performance

Jian-Shiuh Chen, Cheng Te Lee, Yen Yu Lin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Porous asphalt concrete (PAC) is a particular type of asphalt mixture that has a high content of air voids that is generated because of an open-graded design. The objective of the study is to investigate the effect of the engineering properties of PAC on field performance. Three binders were selected for evaluation: conventional asphalt, polymer-modified asphalt, and highly modified asphalt. Comprehensive laboratory tests, including permeability, resistance to draindown, resistance to disintegration, resistance to rutting, and resistance to indirect traction, were conducted to evaluate the engineering properties of PAC mixtures. Stiff binders were shown to resist against particle loss and to enhance durability of PAC mixes through thick asphalt binder films. According to the laboratory results, a test road was constructed to monitor the performance of PAC pavements with aggregates having a nominal maximum size of 19 mm. Surveys for pavement performance were conducted at scheduled intervals. Test results indicated that the use of polymer-modified binders in surface courses was technically superior to that of traditional asphalt. There were indications of drainage improvement by replacement of conventional asphalt with polymer-modified binders according to measurements in the field. Porous asphalt-wearing layers were shown to maintain drainability for more than 8 years in this study. The engineering properties of PAC mixes obtained from the laboratory corresponded well with pavement performance evaluated in the field.

Original languageEnglish
Article number04016246
JournalJournal of Materials in Civil Engineering
Volume29
Issue number4
DOIs
Publication statusPublished - 2017 Apr 1

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asphalt
Asphalt concrete
Asphalt
Binders
Concrete mixtures
Polymers
Pavements
Asphalt mixtures
Concrete pavements
Asphalt pavements
Disintegration
Drainage

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials

Cite this

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Influence of engineering properties of porous asphalt concrete on long-term performance. / Chen, Jian-Shiuh; Lee, Cheng Te; Lin, Yen Yu.

In: Journal of Materials in Civil Engineering, Vol. 29, No. 4, 04016246, 01.04.2017.

Research output: Contribution to journalArticle

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