EVALUATION OF PROPOSED TEXAS SDHPT DESIGN STANDARDS FOR CRCP. INTERIM REPORT

There is a strong correlation between the structural responses and the frequency of distress in CRCP. Hence, the primary factors to be considered in the design of continuously reinforced concrete pavement are the structural responses: crack spacing, crack width, and steel stress. The structural responses in CRCP are the outcome of the interactions among material characteristics, environmental conditions, and traffic loading. Since at least three-quarters of the volume of concrete is occupied by aggregate, concrete properties, such as thermal coefficient, tensile strength, modulus of elasticity, and drying shrinkage are different for concrete made with different types of coarse aggregates. Hence, even under identical environmental and traffic loading conditions, diverse structural responses will result from using different coarse aggregates. In this study, the CRCP Design Standards were evaluated for concretes made with various coarse aggregates. Two types of steel reinforcement are used in continuously reinforced concrete pavement construction: deformed bar and deformed wire fabric. Different structural responses are expected due to different structural mechanisms between the two reinforcement types. The Design Standards for two reinforcement types were separately evaluated.

• Supplemental Notes:
  • Research study title: Rigid Pavement Data Base.
• Corporate Authors:

  University of Texas, Austin

  Center for Transportation Research, 3208 Red River Street
  Austin, TX  United States  78705

  Texas State Department of Highways & Public Transportation

  Transportation Planning Division, P.O. Box 5051
  Austin, TX  United States  78763

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Won, M
  • McCullough, B F
  • Hudson, W R
• Publication Date: 1988-4

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 48 p.

Subject/Index Terms

• TRT Terms: Coarse aggregates; Continuously reinforced concrete pavements; Design standards; Material reinforcement; Pavement cracking
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00481056
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-88+472-1, Res Rept 472-1, CTR 3-8-84-472-1
• Contract Numbers: Study No 3-8-84-472
• Files: TRIS, USDOT, STATEDOT
• Created Date: Mar 31 1989 12:00AM