Alkali-Silica Reaction in Concrete Pavement at Gimpo International Airport - A Maintenance Case Study using HMA Overlays

In most cases, the deteriorated concrete pavements caused by alkali-silica reaction (ASR) need to be replaced to maintain their original function because it is easier than doing repairs on the pavements. To maintain a sustainable operation of the airport business, however, there are greater demands for using repair types in contrast to complete replacement and it can be conducted without any close pavement. In preparation for such demands, Korea Airports Corporation (KAC) has conducted test construction by milling 10 cm of existing concrete slabs and overlaying asphalt mixture and evaluated the pavement performance. The testing has been conducted on the 90m-long parallel taxiway at Gimpo International Airport in 2010. When the concrete pavement has been overlaid with 10 cm of asphalt mixture, it takes five years for the reflection cracking to occur and the spread of the cracks continue to create potholes. Therefore, KAC has conducted four different types of testing. Their types used asphalt mixture. After monitoring each types, it takes a result of which types can more effective on reducing the reflection cracking.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 15p
  • Monograph Title: 2014 FAA Worldwide Airport Technology Transfer Conference Proceedings: Innovations in Airport Safety and Pavement Technology

Subject/Index Terms

Filing Info

  • Accession Number: 01538200
  • Record Type: Publication
  • Report/Paper Numbers: P10036
  • Files: TRIS, ATRI, USDOT
  • Created Date: Sep 9 2014 7:00AM