Superpave Support and Performance Models Management

This project was established to complete research started in July 1995 under sponsorship of the Federal Highway Administration (FHWA). The original FHWA project was divided into two phases. Phase I, completed in September 1996, evaluated the Superpave performance models developed through the Strategic Highway Research Program. In Phase II, begun in November 1997, the contractor was tasked with development and validation of an advanced material characterization model and the associated calibration and testing procedures for hot mix asphalt used in highway pavements. It also included a discrete but important task to identify a simple performance test to complement the Superpave volumetric mix design method. The objectives of this research were to (1) develop simple performance tests for permanent deformation and fatigue cracking for incorporation in the Superpave volumetric mix design method, and (2) develop and validate an advanced material characterization model and the associated calibration and testing procedures for hot mix asphalt used in highway pavements. The dynamic modulus test was recommended as the primary simple performance test for rutting. The contractor prepared a software specification that determines a critical minimum E* value for hot mix asphalt (HMA) based on project-specific information on climate, traffic, pavement structure, and layer depth. This specification is based on a series of pavement design examples pre-solved with the pavement design guide software from Project 1-37A. The flow number (repeated load permanent deformation) test provides an optional, complementary procedure for evaluating the resistance of an HMA mix design to tertiary flow.

• Record URL:
  http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=955

Language

• English

Project

• Status: Completed
• Funding: $2628282.00
• Contract Numbers:

  Project 9-19

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  American Association of State Highway & Transportation Officials (AASHTO)

  444 North Capitol Street, NW, Suite 225
  Washington, DC  United States  20001

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001
• Project Managers:

  Harrigan, Edward

• Performing Organizations:

  University of Maryland, College Park

  Department of Civil and Environmental Engineering
  1173 Glenn Martin Hall
  College Park, MD  United States  20742
• Principal Investigators:

  Witczak, Matthew

• Start Date: 19990510
• Expected Completion Date: 0
• Actual Completion Date: 20060731
• Source Data: RiP Project 3092

Subject/Index Terms

• TRT Terms: Asphalt pavements; Hot mix asphalt; Mix design; Pavement management systems; Performance evaluations; Performance tests; Rutting; Superpave; Volumetric analysis
• Subject Areas: Administration and Management; Highways; Maintenance and Preservation; Pavements; I30: Materials;

Filing Info

• Accession Number: 01547858
• Record Type: Research project
• Source Agency: National Cooperative Highway Research Program
• Contract Numbers: Project 9-19
• Files: RiP
• Created Date: Dec 16 2014 1:00AM