DEVELOPMENT OF AN ASPHALTIC CONCRETE OVERLAY DESIGN PROCEDURE FOR RIGID PAVEMENTS IN INDIANA. FINAL REPORT

An overlay study was conducted of 30 jointed reinforced concrete pavements (JRCP) and 13 continuously reinforced concrete pavements (CRCP). These pavements were selected from the Indiana primary highway system based on an experimental design for levels of major factors affecting pavement performance. An analysis was made of pavement deflection; condition; serviceability; materials; thicknesses; truck traffic; latest overlay thickness; age; climate zone and subgrade type, density and moisture content. Initially, a rational analysis was planned using the backcalculated material properties as suggested in the 1986 AASHTO Design Guide. However, this approach was not successful and alternate analysis procedures were utilized. The performance of asphalt overlays of concrete pavement proved to be complex. Fortunately, analysis of the data base built using experimental design techniques helped to explain this complex performance. Based on the performance data several performance regimes were characterized. For example, increased overlay thickness for jointed concrete pavements on stiff foundations was characterized by a relation using a PCI subset of cracking distresses. A statistical analysis was performed on the CRCP pavement data, and an overlay model was developed. However, because of the limited range in thickness, truck traffic, etc., the equation should be used only as a guide for determining overlay thickness. Two statistical models were developed for the JRCP sections. The first is a structural model, to be used for thin to medium thick (6 in. to 9 in.) PCC pavements with thin AC overlays. The second is a functional model, to be used with thick (greater than 9 in.) PCC pavements or any PCC pavements with thick (greater than 5 in.) AC overlays. A procedure has been formulated for determining which of these equations is applicable for particular AC/PCC thickness combinations.

• Corporate Authors:

  Purdue University/Indiana Department of Transportation JHRP

  Purdue University, School of Civil Engineering
  West Lafayette, IN  United States  47907-1284

  Indiana Department of Transportation

  100 N Senate Avenue
  Indianapolis, IN  United States  46204

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Pumphrey Jr, N D
  • White, T D
• Publication Date: 1989-7-7

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 515 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete; Concrete pavements; Continuously reinforced concrete pavements; Design methods; Equations; Mathematical models; Overlays (Pavements); Pavement joints; Pavement performance; Statistical analysis; Thickness
• Uncontrolled Terms: Models
• Subject Areas: Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00601487
• Record Type: Publication
• Report/Paper Numbers: FHWA/IN/JHRP-89/14, JHRP-89/14
• Files: TRIS, USDOT, STATEDOT
• Created Date: Nov 30 1990 12:00AM