Determination of coefficient of thermal expansion effects on Louisiana’s PCC pavement design : research project capsule.

Details

• Creators:
  Shin, Hak-Chul ; Chung, Yoonseok
• Corporate Creators:
  Louisiana Transportation Research Center
• Corporate Contributors:
  Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.)
• Subject/TRT Terms:
  • Expansion
  • Thermal expansion
  • Expansion joints
  • Pavement design
  • Thermal expansion
  • Portland cement
  • Cement additives
  • Testing
  • Portland cement concrete
  • Additives
  More +
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Edition:
  Research project capsule.
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  PROBLEM: The coefficient of thermal expansion (CTE) is a fundamental property of construction ; materials such as steel and concrete. Although the CTE of steel is a well-defined ; constant, the CTE of concrete varies substantially with aggregate type, mix design, ; and moisture condition. ; The Mechanistic-Empirical Pavement Design Guide (MEPDG) demonstrates the ; importance of CTE in design and performance of Portland cement concrete (PCC) ; pavements. It is known that CTE has significant effects on slab cracking, curling and ; warping, joint faulting, and pavement smoothness. A better understanding of CTE ; effects on performance of Louisiana’s PCC pavements is needed. ; OBJECTIVE: After summarizing the current practice for measuring CTE of PCC, the researcher will determine the variance of CTE for concrete mixes used in Louisiana and provide ; recommendations for use of CTE in PCC pavement design. Additionally, the current ; specification for maximum spacing of transverse joints in jointed plain concrete ; pavement (JPCP) will be evaluated.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17098/dot_17098_DS1.pdf
• File Type:
  [PDF - 178.47 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:80bfdeb43d35353edb4a683a4f3c7266c20ce4e6256b68c8ab6359025168b562