Laboratory study of concrete properties to support implementation of the new AASHTO mechanistic-empirical pavement design guide.

Details

• Creators:
  Effinger, Jacob B. ; Li, Ruipeng ; Silva, Jessica ; Cramer, Steven M.
• Corporate Creators:
  University of Wisconsin--Madison. Department of Civil and Environmental Engineering
• Subject/TRT Terms:
  • Concrete pavements
  • Coarse aggregates
  • Slag cement
  • Fly ash
  • Compressive strength
  • Flexural strength
  • Modulus of elasticity
  • Tensile strength
  • Thermal expansion
  • Poisson ratio
  More +
• Publication/ Report Number:
  0092-10-11
• Resource Type:
  Tech Report
• Geographical Coverage:
  Wisconsin
• Edition:
  Final report.
• Corporate Publisher:
  Wisconsin. Dept. of Transportation. Research and Library Unit
• Abstract:
  Properties of concrete embodying materials typically used in Wisconsin paving projects were evaluated in support of future ; implementation of the AASHTO Mechanistic-Empirical Pavement Design Guide (MEPDG). The primary concrete ; properties studied were compressive strength, flexural strength, modulus of elasticity, indirect tensile strength, coefficient of ; thermal expansion, and Poisson’s ratio. Materials included fifteen sources of coarse aggregate, two sources of fine ; aggregate, two sources of ordinary Portland cement, two sources of slag cement, and three sources of fly ash. The results ; showed the type of coarse aggregate had the greatest effect on all concrete properties compared to the rest of the ; components changed in this study. MEPDG pavement thickness design was found to vary with coarse aggregate source and ; the use of supplementary materials. The MEPDG default level 2 and 3 empirical relations for material properties proved ; conservative for typical Wisconsin pavement projects based on predicted critical thicknesses. Two alternative options for ; empirical equations based on this study’s test results were found to be more accurate to actual test results than default level ; 2 empirical relations. One option was a least-squares best fit property prediction line based on all the test results. The other ; option was to split the concrete property predictions into two equations based on coarse aggregate mineralogy. Comparisons ; with previous relevant WHRP reports are included.
  More +
• Format:
  PDF
• Funding:
  WisDOT SPR# 0092-10-11
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25522/dot_25522_DS1.pdf
• File Type:
  [PDF - 4.12 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:efdca3fdf9a4e0b8ccbe5262d493263b9c838d8a5414938f9de3ce49405be19598ca7d3f3b5fc83676994daf5e05d441c58b4c22a7ab0de7cff0e2ccbb3f7ad1