Forensic Investigation of AC and PCC Pavements with Extended Service Life : Volume 3 : Petrographic Examination of Blast Furnace Slag Aggregate Concrete Cores taken from PCC Pavements in Cuyahoga County , Ohio

Details

• Creators:
  Lankard, David
• Corporate Creators:
  Ohio University. Ohio Research Institute for Transportation and the Environment (ORITE)
• Corporate Contributors:
  Ohio. Dept. of Transportation. Office of Research and Development ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Pavement performance
  • Rigid pavements
  • Flexible pavements
  • Service life
  • Design
  • Testing
  • igid pavement performance
  • Flexible pavement performance
  • Predicted pavement service life
  • Forensic testing
• Publication/ Report Number:
  FHWA/OH-2010/004C
• Resource Type:
  Tech Report
• Geographical Coverage:
  Ohio
• Edition:
  Technical report.
• Corporate Publisher:
  Ohio Research Institute for Transportation and the Environment
• Abstract:
  The purpose of this research was to identify flexible and rigid pavements in Ohio with average and above average ; performance, and determine reasons for these differences in performance. The identification and implementation of ; factors linked to extended service life will improve performance statewide. FWD and ride quality profiles were ; measured to evaluate project uniformity, and material samples were obtained from a selected location on each project ; and tested in the laboratory to determine material properties. Volume 1 of the report includes: the project selection ; process, FWD and ride quality data, laboratory results of testing on base, subgrade and asphalt concrete pavement ; samples, and projected services lives using FWD data and the MEPDG. Volume 2 provides the results of laboratory ; tests and petrographic examinations on the Portland cement concrete cores. Volume 3 contains petrographic analysis ; of PCC pavement specimens in Cuyahoga County, Ohio containing Blast Furnace Slag Aggregate. ; Flexible and rigid pavements in Ohio receiving no structural maintenance show an average condition rating of 68 ; after 20 and 30 years of service, respectively. This performance, coupled with no structural distress being observed on ; the pavements selected for study indicates pavement design procedures used in Ohio are meeting expectations. Among ; the items recommended to improve pavement performance include: 1) maintaining subgrade uniformity to minimize ; localized failures, 2) reducing amounts of Portland cement and using larger aggregate in 451 and 452 concrete, while ; continuing to test aggregate for D-cracking susceptibility, 3) increasing emphasis on ensuring that dowel bars maintain ; proper alignment during placement of PC concrete, and 4) continuing the use of performance grading and polymers ; when designing AC mixes on heavily traveled pavements. Other observations regarding the data used to reach these ; conclusions include: keeping the PMIS database current, retaining construction records for at least the design life of the ; pavements, being aware that the effect of surface cracks on flexible pavement performance depends upon whether the ; cracks are top-down or bottom-up, and the PMIS and straight-line diagrams should be consistent in identifying project ; limits, project numbers and paving materials. ; Volume 3 of the report contains petrographic analysis of PCC pavement specimens in Cuyahoga County, Ohio ; containing Blast Furnace Slag Aggregate.
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• Format:
  PDF
• Funding:
  State Job No. 134280
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/20561/dot_20561_DS1.pdf
• File Type:
  [PDF - 9.12 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:30d8e3983eeda7c54e12858050b6f9c9964e05431aa6b9639c06d5229a88fa136e10ec20015755ca87ed3b5948680a70de61d26af667f5dcd4cceedf77671043