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Federal Highway Administration Research and Technology
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Research and Development (R&D) Project Sites

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Project Information
Project ID:   FHWA-PROJ-09-0025
Project Name:   Pavement Shear Strain Response To Dual and Wide-Base Tires
Project Status:   Active
Start Date:  August 3, 2009
End Date:  September 30, 2011
Contact Information
Last Name:  Weaver
First Name:  Eric J
Telephone:  202-493-3153
E-mail:  eric.weaver@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Infrastructure Analysis and Construction Team [HRDI-20]
Program:   Eisenhower Fellowships
Project detail
Roadmap/Focus area(s):   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.
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.
Product Type:   Data
Other
Research report
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:   The deliverable is a paper describing the experiment and objectives, as well as the data processing and analysis approach with preliminary findings.
FHWA Topics:   Research/Technologies--FHWA Research and Technology
TRT Terms:   Tires
Shear Strain
Infrastructure
Pavements
Research
Longitudinal Cracking
Asphalt
Concrete
FHWA Disciplines:   Pavement and Materials
Subject Areas:   Materials
Pavements
Research

 

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