Performance Requirements of High Quality Flexible Pavements

Details

• Creators:
  Bynum Jr, Douglas ; Traxler, R. N.
• Corporate Creators:
  Texas Transportation Institute. Texas A&M University
• Corporate Contributors:
  Texas Highway Department ; United States. Department of Transportation. Federal Highway Administration. Bureau of Public Roads
• Subject/TRT Terms:
  • Asphalt concrete
  • Flexible pavements
  • Pavement design
  • Pavement distress
  • Pavement performance
  • Shear strength
  • Surface course (Pavements)
  • Thermal stresses
  • Viscoelasticity
• Publication/ Report Number:
  127-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Corporate Publisher:
  Texas Transportation Institute. Texas A&M University
• Abstract:
  This study involved the development of performance requirements to alleviate thermal distress in a high-quality surface course for flexible pavement. The four requirements determined were for (1) long term or thermal equilibrium, normal strain or stress, (2) short term or transient thermal stress, (3) shear strength and (4) peel strength of the pavement-foundation interface. The shear lag in the asphaltic concrete was found to increase with increasing thickness of lifts. A time-temperature dependent modulus was used to compute stresses, so the results were thermoviscoelastic requirements. Use of the results will lead to conservative design from the standpoint of maintaining the structural integrity of the pavement.
• Format:
  PDF
• Funding:
  2-8-69-127
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/84555/dot_84555_DS1.pdf
• File Type:
  [PDF - 2.18 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:0f1765ec74238681472106c878446decb2864ac44cd194ecef26196ade448f23aa9bc02c25efe3adf5931029880fa917442537502348a100ebb12985fc503298