|Project Name:||Pavement Shear Strain Response To Dual and Wide-Base Tires|
Office of Infrastructure Research and Development |
|Team:||Infrastructure Analysis and Construction Team|
Infrastructure Research and Technology Strategic Plan and Roadmap|
|Project Description:||Analyze data from instrumented pavement sections loaded by a truck equipped with both dual- and wide-base tires in hot weather conditions. The data was collected from the Specific Pavement Study (SPS)-8 sections at the Ohio Test Road. Data would be used to show relative shear strains induced near the pavement surface to validate existing models for use in next-generation Mechanistic-Empirical pavement design. This could lead to more reliable performance prediction, especially regarding longitudinal cracking.|
|Start Date:||August 3, 2009|
|End Date:||September 30, 2011|
|Goals:||The key objective is to determine differences in the asphalt concrete shear strain response in hot weather, resulting from different tire configurations under the same loading.|
|Expected Benefits:||The expected benefit is validation of pavement models using real data. The investment in the data collection has already been made by the Federal Highway Administration (1998), but the data were never processed and analyzed. Early research at the Accelerated Pavement Testing Facility suggested that the wide-base tires in use at the time produced more pavement damage than dual tires; however, the experiments were never repeated with newer designs. The wide-base tires included in this experiment used both the type of tire used at the Accelerated Pavement Testing Facility and a new prototype tire shipped from France by Michelin. These experiments may reveal the relative strains induced by each tire type and design. This work is meant to compliment graduate work on the three-dimensional (3-D) finite element method (FEM) tire model under Rey Roque at the University of Florida, 3-D FEM pavement modeling by Imad Al-Qadi at the University of Illinois, and the Vehicle-Pavement Interaction work by Peter Sebaaly as part of the Asphalt Research Consortium at the University of Nevada—Reno.|
|Deliverables:||1. Name: 2011 Transportation Review Board Paper, "Pavement Shear Strain Response to Dual and Wide-Base Tires."|
Product Type(s): Other
Description: The deliverable is a paper describing the experiment and objectives, as well as the data processing and analysis approach with preliminary findings.
2. Name: Organized analysis dataset.
Product Type(s): Data
Description: The deliverable is a file directory structure containing original raw, processed and analyzed data, and documentation and MATLAB® code.
3. Name: Final report.
Product Type(s): Research report
Description: The deliverable is a research report containing all analysis, results, findings, and recommendations for future research