Evaluation of HMA overlays in Illinois.

Details

• Creators:
  Wolters, Angela S. ; Hoerner, Todd E. ; Smith, Kurt D.
• Corporate Creators:
  Applied Pavement Technology, Inc.
• Corporate Contributors:
  Illinois. Department of Transportation. Bureau of Materials and Physical Research ; Illinois Center for Transportation
• Subject/TRT Terms:
  • Pavement design
  • Pavement components
  • Pavement cracking
  • Pavements
• Publication/ Report Number:
  FHWA-ICT-08-021 ; FHWA-ICT-08-021, UILU-ENG-2008-2008
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  The Illinois Department of Transportation (IDOT) has evaluated the performance of the pavements in Illinois in a ; variety of studies over the years. Since those studies were conducted, several changes in IDOT practices, policies, and ; procedures have sparked the need to reassess the performance of HMA overlays in Illinois. ; The purpose of this study was to examine the performance of HMA overlays in Illinois. The service life of the ; overlays is affected by a variety of factors that were examined in this study. Specifically, the following attributes were ; examined: ; • Construction year period ; • Location ; • Condition before overlay placement ; • Presence of D-cracking on rigid pavement sections before overlay ; • Underlying concrete type ; • Estimated overlay number ; • Overlay type ; The service life trends observed in the 231 examined datasets were as expected for the majority of the datasets. ; However, there were some inconsistencies or unexpected trends in the results for several data sets. For those cases, the ; data were reviewed and the reasons for the inconsistent or unexpected trends were often obvious. The data causing the ; unexpected trends were not removed from the datasets as the data was true CRS data. Based upon the service life ; results, the impact of the evaluated variables on the performance of the HMA overlays were documented in the report. The ; database of information developed as part of the study contains a wealth of information that can be used to further analyze ; the effects of various attributes on the performance of HMA overlays.
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• Format:
  PDF
• Funding:
  ICT-R27-23
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16698/dot_16698_DS1.pdf
• File Type:
  [PDF - 475.93 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:c6c19da8fefc18a4cbaa2aba291c25e9394871691a10f44eef3801a91c52f702