Pavement service life extension due to asphalt surface treatment interlayer : research project capsule.

Details

• Creators:
  Khattak, Mohammad Jamal ; Zhang, Zhongjie
• Corporate Creators:
  University of Louisiana at Lafayette. Dept. of Civil Engineering
• Contributors:
  Rupnow, Tyson D.
• Corporate Contributors:
  Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.)
• Subject/TRT Terms:
  • Base course (Pavements)
  • Flexible pavements
  • Pavement layers
  • Service life
  • Soil cement
  • Surface treating
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Louisiana
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  The Louisiana Department of Transportation and Development (DOTD) has been ; using asphalt surface treatment (AST) interlayers over soil cement base courses ; as a means to mitigate shrinkage cracks from reflecting through the asphaltic ; concrete (AC) pavement surfaces. There are currently no official DOTD guidelines ; or policies for using AST interlayers. Determination of the cost effectiveness ; for using AST interlayers in pavements has not been performed for Louisiana ; roadways. ; The main objectives of this study are to evaluate DOTD’s current AST interlayer ; practice; determine the effectiveness of AST interlayers in terms of costs and ; benefits; develop statistical performance prediction models for various pavement ; distress types (with and without AST interlayers); and develop guidelines/policies ; for the use of AST interlayers.
  More +
• Format:
  PDF
• Funding:
  16-5P;1000089
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31025/dot_31025_DS1.pdf
• File Type:
  [PDF - 405.16 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:0edfdd82e8e93f50104efdfa08f7ce5777a9a8a8f9f2648b8060e62c3eeaafd6c26843f817ce4cb0c0d24a0e9284f6ecf83c0f306e1289603834d3070263dc3a