Performance of polymer modified asphalt on pre-cracked cement treated base at the K.L. International Airport

Composite pavement structures were designed and constructed for the runways and taxiways pavement at the K.L International Airport. The constructions were completed and open to air traffic in 1997. The pavement comprises Polymer Modified Asphalt (PMA) wearing and binder courses on top of bituminous crack relief layer. The base layer consists of high strength cement treated base (CTB), pre-cracked by 'kerfing'. The base layer uses low-grade aggregate stabilised with cement. The composite pavement is a rather new concept of construction in Malaysia and was initially built with a lot of scepticism. After seven years of service of pavement had performed very well to accommodate heavy aircraft load including the MD-11, its original design aircraft. The development of the composite pavement is described in detail starting from preconstruction to post-construction activities. The use of quasi-mechanistic design is highlighted incorporating outcome from 10 years local research findings and experiences. The application of pre-cracking on the cement treated base layer with the introduction of the crack relief layer (CRL) as an anti reflective cracking measure is also described. The use of polymer modified asphalt parallel to the Strategic Highway Research Program (SHRP) finding is also presented. The pavement is monitored properly and the data is incorporated in a pavement management system tool.

Language

  • English

Media Info

  • Pagination: 10p
  • Serial:
    • Issue Number: 15

Subject/Index Terms

Filing Info

  • Accession Number: 01391139
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 23 2012 5:19AM