Evaluating Rutting and Stripping Potentials of Asphalt Mixes using Hamburg Wheel Tracking Device

Asphalt pavement temperature in the southwest can reach one hundred degrees or more during hot summer days. At elevated temperatures, rutting is caused by large stresses in the upper portions of the asphalt layers under heavier traffic loading. Rutting has been a major issue of pavement failure throughout the southwest region. The rutting potentials of New Mexico's asphalt mixes are not known. Therefore, the development of a specification for selection of sufficiently rut- and stripping- resistant hot mix asphalt (HMA) mixes during the mix design stage, based on appropriate laboratory testing, is crucial. This study addresses the issue of repairing transportation infrastructure by preventing damage resulting from extreme weather conditions. The objective of this study is to develop a mix design specification that will reduce occurrences of placing rut- and stripping-prone mixes in roadway pavements. To achieve this objective, rutting and stripping potential of twenty HMA mixes collected from different parts of New Mexico will be determined using a Hamburg Wheel Tracking Device (HWTD) and dynamic shear rheometer. In addition, HWTD test results with be compared with the predicted rutting from pavement Mechanistic-Empirical (ME) Design models. Necessary binder testing will be conducted in the laboratory to generate data for the prediction models. In essence, the effort will focus on connecting mix design specification with Pavement ME design software to close the gap between mix design and pavement design. The expected outcome of this study is a specification that addresses rutting due to extreme temperatures that will be useful not only in New Mexico, but also in other areas with extreme hot climate.

Language

• English

Project

• Status: Active
• Funding: $250000.00
• Contract Numbers:

  DTRT13-G-UTC36

  SPTC 14.1-69

• Sponsor Organizations:

  New Mexico Department of Transportation

  State Highway Department Building
  1120 Cerrillos Road
  Sante Fe, NM  United States  87504-1149

  Research and Innovative Technology Administration

  University Transportation Centers Program
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Performing Organizations:

  University of New Mexico, Albuquerque

  MSC01 1070
  Albuquerque, New Mexico  United States  87131-0001
• Principal Investigators:

  Tarefder, Rafiquel

• Start Date: 20140801
• Expected Completion Date: 0
• Actual Completion Date: 20160731
• Source Data: RiP Project 37450

Subject/Index Terms

• TRT Terms: High temperature; Hot mix asphalt; Hot weather; Mechanistic-empirical pavement design; Mix design; Pavement design; Rutting; Stripping (Pavements)
• Geographic Terms: New Mexico
• Subject Areas: Design; Highways; Pavements; I30: Materials;

Filing Info

• Accession Number: 01543097
• Record Type: Research project
• Source Agency: Southern Plains Transportation Center
• Contract Numbers: DTRT13-G-UTC36, SPTC 14.1-69
• Files: UTC, RiP
• Created Date: Nov 5 2014 1:01AM