A Review of Protocols Used for Evaluating Defective Asphalt Materials and Pavements

Details

• Creators:
  West, Randy ; Rodezno, Carolina ; Taylor, Adam ; Tran, Nam ; Musselman, Jim
• Corporate Creators:
  Auburn University. National Center for Asphalt Technology
• Corporate Contributors:
  Florida. Department of Transportation
• Subject/TRT Terms:
  Asphalt Based Materials Asphalt Concrete Pavements Asphalt Mixtures Asphalt Pavement Analyzer Cantabro OGFC Mixture Performance Contractors Defective Asphalt Materials Durability Evaluation High-Temperature Indirect Tension Test High Temperature Laboratory Tests Mix Durability Performance Tension Tests

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• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Florida
• Edition:
  Final Report: May 2021 – June 2024
• Corporate Publisher:
  Florida. Department of Transportation
• Abstract:
  The Florida Department of Transportation (FDOT) construction specifications include procedures to deal with unacceptable materials that do not meet the specification requirements. When the materials are considered “defective,” the engineer can reject those materials, whether in place or not. The contractor is then directed to remove and replace all rejected materials, or if approved by the engineer, an engineering analysis can be conducted on the in- place material to determine if the material should be removed or remain in place. This project examines the adequacy of current FDOT practices to evaluate defective materials and whether additional test procedures can improve current practices. The evaluation included the review and analysis of in-place pavement sections where defective materials were left in place and a laboratory evaluation to assess the performance of dense-graded mixes and FC-5 mixes produced in the laboratory to simulate different production and construction scenarios. The evaluation of the in-place pavement sections for specific mix and failure type combinations suggested that leaving the defective materials in place did not result in post-construction pavement failures. The laboratory evaluation showed that for dense-graded mixes, the APA and HT-IDT tests were able to discriminate mixes among the different production construction scenarios and that both tests have a fair correlation. For FC-5 mixes, the Cantabro test was also able to discriminate mixes among different production scenarios. The laboratory results suggest that the APA, HT-IDT, and Cantabro tests could be used to improve current FDOT practices in evaluating defective materials.
• Format:
  PDF
• Funding:
  BEB15
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:5158edd9461d56322c4ad53efee95ec3dc7504fd2478d4ecd25f44dab66526e305e011734de3fe655ee9956314e01baa0c29761c69bb2757c7ce53f309a0e52c
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88421/dot_88421_DS1.pdf
• File Type:
  [PDF - 3.52 MB ]