Standardization of SIP Calculation for Hamburg Wheel Tracking Test
The Hamburg Wheel Tracking Test (HWTT) is one of the most popular laboratory tests used by state highway agencies (SHAs) to evaluate the rutting resistance of asphalt mixtures. Because the test is conducted in water, it also allows the evaluation of moisture susceptibility based on the stripping inflection point (SIP). According to AASHTO T 324, SIP is determined graphically as the intersection of slopes of the two fitted lines to the creep and stripping phases of the HWTT curve. Although the definition of SIP is straightforward, accurately determining SIP can be challenging because HWTT data do not always provide well-defined SIP, especially those with a marginal stripping failure. Over the years, HWTT equipment manufacturers and asphalt practitioners have developed different methods for calculating SIP, but they do not always yield the same results. The lack of standardization for SIP calculation could cause unnecessary disputes for SHAs when evaluating the HWTT results for mix design approval and production acceptance. This proposed project aims to develop HWTT analysis software to standardize and automate the calculation of SIP, which allows SHAs to make the most informed and undisputable decisions on the HWTT results. The software will be compatible with different HWTT devices to enable direct reading and processing of the raw data files without subjective data manipulation and interpretation.
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Supplemental Notes:
- TPF-5(466)
Language
- English
Project
- Status: Active
- Funding: $70000
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Contract Numbers:
1036333-WO-08
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Sponsor Organizations:
Minnesota Department of Transportation
395 John Ireland Boulevard
St Paul, MN United States 55155California Department of Transportation
1227 O Street
Sacramento, CA United States 95843Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590Georgia Department of Transportation
One Georgia Center
600 West Peachtree Street, NW
Atlanta, GA United States 30308Illinois Department of Transportation
2300 S. Dirksen Parkway
Springfield, IL United States 62764Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 395 John Ireland Boulevard
St. Paul, Minnesota United States 55155-1899Michigan Department of Transportation
Van Wagoner Building
425 W. Ottawa Street
Lansing, MI United States 48909Mississippi Department of Transportation
401 North West Street, P.O. Box 1850
Jackson, MS United States 39215-1850Missouri Department of Transportation
1617 Missouri Boulevard
P.O. Box 270
Jefferson City, MO United States 65102Montana Department of Transportation
2701 Prospect Avenue
P.O. Box 201001
Helena, MT United States 59620-1001Nebraska Department of Transportation
1500 Nebraska 2
Lincoln, NE United States 68502New York State Department of Transportation
50 Wolf Road
Albany, NY United States 12232North Dakota Department of Transportation
608 East Boulevard Avenue
Bismarck, ND United States 58505-0700Wisconsin Department of Transportation
4802 Sheboygan Avenue
Madison, WI United States 53707 St. Paul, MN United States 55155 -
Managing Organizations:
Minnesota Department of Transportation
395 John Ireland Boulevard
St Paul, MN United States 55155 -
Project Managers:
Munir, Hafiz
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Performing Organizations:
Auburn University
Auburn, AL United States 36830 -
Principal Investigators:
Fan, Yin
- Start Date: 20240124
- Expected Completion Date: 20250331
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Software; Standardization; Stripping (Pavements)
- Identifier Terms: Hamburg Wheel Tracking Device
- Subject Areas: Construction; Data and Information Technology; Design; Highways; Pavements;
Filing Info
- Accession Number: 01905383
- Record Type: Research project
- Source Agency: Minnesota Department of Transportation
- Contract Numbers: 1036333-WO-08
- Files: RIP, STATEDOT
- Created Date: Jan 23 2024 2:07PM