Long Term Monitoring of Broken and Seated Pavements

Details

• Creators:
  Rajagopal, Arudi ; Minkarah, Issam
• Corporate Creators:
  University of Cincinnati. Department of Civil and Environmental Engineering
• Corporate Contributors:
  Ohio. Dept. of Transportation ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Reflection cracking
  • Crack and seat treatment
  • Pavement maintenance
  • Comminution
  • Cracking
  • Pavement cracking
  • Slabs
  • Pavement performance
  • Overlays (Pavements)
  • Surface course (Pavements)
  More +
• Publication/ Report Number:
  FHWA/OH-2002/024
• Resource Type:
  Tech Report
• Geographical Coverage:
  Ohio
• Edition:
  Final report.
• Corporate Publisher:
  University of Cincinnati
• Abstract:
  This report presents details of a study conducted to evaluate the long term performance of asphalt overlays on broken and seated ; (B/S) concrete p avements, us ing field expe riments. Th e primary p urpose o f this study is to evaluate the effectiveness of breaking ; and seating as a reh abilitation strateg y for retarding r eflection crac king in asphalt concrete (AC) overlays on jointed reinforced ; concrete pavements. Test sections were constructed by milling the original AC layer, breaking and seating the concrete slabs and ; constructing new AC overlays. Control sec tions were co nstructed ad jacent to the B /S sections in the same way, but without breaking ; the underlying concrete slabs. The test sections carried a large volume of traffic. The original pavements selected in this study were ; fairly uniform with respect to their structural and surface con ditions. Tw o types of pa vement br eakers were used in this study, na mely ; guillotine and pile hammer. The extent of breaking was closely monitored. The performance of the test sections was monitored for ; a total period of nine years. T he monito ring data includ ed deflectio n measure ments, crack mapping , a paveme nt condition surveys ; and roughness surveys on the original pavement and on the overlay. The results, in general, strongly indicate an improved ; performance of AC ov erlays on bro ken and se ated conc rete pavem ents. The B/S treatment has a significant effect on the structural ; response and behavior of the resulting pavement. Breaking the concrete slabs into smaller pieces resulted in a reduction in the ; flexural strength, an increase in the surface deflection (50% to 100%), and a decrease in AREA and Spreadability (20 to 30%). ; Breaking and seating has been extremely effective in delaying and minimizing reflection cracking. Hence, the breaking and seating ; procedure does indeed result in improved pavement performance. Ultimately, economics and serviceability will govern its use, based ; on the length of time future maintenance and rehabilitation is deferred.
  More +
• Format:
  PDF
• Funding:
  State Job No. 14670(0)
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/20615/dot_20615_DS1.pdf
• File Type:
  [PDF - 9.46 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:b6b3079b26fa588dc76447d2d57a03410bb7dedfc4a6e708ca2e530c8e377b5f80efff6cd1055f8542cc3bef0c1acc7e7cd8dd8e733d06828965fed33f08d3cc