Improving the use of crack sealing to asphalt pavement in Louisiana : research project capsule : technology transfer program.

Details

• Creators:
  Elseifi, Mostafa A.
• Corporate Creators:
  Louisiana State University (Baton Rouge, La.). Dept. of Civil and Environmental Engineering
• Contributors:
  Rupnow, Tyson D. ; Zhang, Zhongjie
• Corporate Contributors:
  Louisiana Transportation Research Center ; Louisiana. Department of Transportation and Development
• Subject/TRT Terms:
  • Asphalt pavements
  • Sealing (Technology)
  • Pavement distress
  • Structural deterioration and defects
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Louisiana
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  Pavement performance ; depends on the effectiveness ; and timeliness of ; maintenance efforts. ; Deferred maintenance ; increases the severity of ; distresses and leads to a more ; rapid decline of a pavement’s ; condition. An effective ; maintenance program delays ; deterioration and corrects ; pavement deficiencies. ; Crack sealing (or filling) can ; keep water from entering ; the pavement structure, thus ; preventing the weakening of ; the pavement and delaying its deterioration. Years of service life may be added ; to the pavement at a relatively low cost, assuming that an appropriate sealant ; material is correctly installed at the right time in the pavement life. Various ; studies have demonstrated the cost effectiveness of crack sealing. ; The use of crack sealing in Louisiana has been limited since studies conducted ; in the 1960s showed that the performance of this maintenance practice can be ; affected by high groundwater table conditions. According to these studies, crack ; sealing can prevent water from escaping through the cracks, causing accelerated ; stripping of the asphalt concrete. ; It seems intuitive that any impermeable treatment on top of a pavement with ; high groundwater table may cause the same problem. However, after more than ; 50 years since the original studies, it is unclear if the same conditions still exist ; and whether current construction practices affect the findings from those studies.
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• Format:
  PDF
• Alternate URL:
  http://ntl.bts.gov/lib/60000/60300/60376/capsule_17-1P.pdf
• Funding:
  17-1P
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31498/dot_31498_DS1.pdf
• File Type:
  [PDF - 211.67 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b8dbeaceb5011de88553eaba6db898ce72f6e144bb36ac48775cbbe0771f2a8b