Evaluation of the performance, cost-effectiveness, and timing of various preventive maintenances : interim report.

Details

• Creators:
  Shuler, Scott
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Pavements
  • Repairing
  • Highway maintenance
  • Pavements--Colorado--Maintenance and repair
• Publication/ Report Number:
  CDOT-2010-3
• Resource Type:
  Tech Report
• Geographical Coverage:
  Colorado
• Corporate Publisher:
  Colorado. Dept. of Transportation. Research Branch
• Abstract:
  This research study evaluated the performance of various pavement preservation treatments over time and under different ; environmental conditions to quantify the economics of each treatment type. There are three primary techniques utilized in Colorado ; for preservation of asphalt pavements and three for concrete pavements. For asphalt pavements these are crack sealing, chip seals, and ; thin hot mix asphalt overlays. For concrete pavements the treatments are joint resealing, cross-stitching, and microgrinding. Full-scale ; test sections were constructed in 2005 and some additional test sections previously constructed were also included for performance ; measurement. These test sections include crack sealing, chip seals, thin overlays, joint resealing, cross-stitching and microgrinding. ; Test results indicate that continuation of crack sealing, chip sealing, and thin hot mix overlays is justified for asphalt pavements. ; Performance results of the preservation treatments for concrete pavements were not as successful. Propagation of the crack into the ; adjacent slab occurred in the cross-stitching test sections. Microgrinding concrete pavements does not appear to be effective at ; reducing cracking and may be detrimental to performance. The disappointing results of the joint resealing test sections indicate that a ; review of the specifications should be considered. ; Implementation: ; The Preventive Maintenance Best Practices Manual is Appendix A of this report. The methods described in this manual are based on ; a review of the literature, a series of interviews conducted in each Colorado DOT region, full-scale field test sections, and experience ; of the researchers. These best practices should be followed when preventive maintenance procedures are conducted on asphalt and ; concrete pavements in Colorado.
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• Format:
  PDF
• Funding:
  10.50
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18358/dot_18358_DS1.pdf
• File Type:
  [PDF - 2.90 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4f90720f2a2a5c2cf942e0a9f8413cad92fdc671f4698daf2223e9cb96f75a81