Subsurface Investigation Using Traffic Speed Deflection Device (TSDD) in Oklahoma
Publication: Airfield and Highway Pavements 2023
ABSTRACT
Rut and longitudinal edge depressions are some of the major problems in asphalt pavements near the intersection of I-35 and SH-7 in Oklahoma. Severe rut and longitudinal joint depressions were observed on SH-7. The purpose of this study was to perform a subsurface investigation using the traffic speed deflection device (TSDD), ground penetrating radar (GPR), and fast falling weight deflectometer (FFWD) tests, as well as laboratory performance tests on asphalt cores. The GPR showed an increase in moisture over the longitudinal joint. Low moduli were observed on the east-bound inside lane, where major depressions and ruts were observed. The Hamburg wheel tracking device (HWTD) tests showed excessive rut in the east-bound and west-bound lanes of SH-7 indicating potential for rut failure. Significantly high rut and roughness were observed on the east-bound inside lane of SH-7 from the TSDD measurements.
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Information & Authors
Information
Published In
Airfield and Highway Pavements 2023
Pages: 131 - 140
History
Published online: Jun 13, 2023
ASCE Technical Topics:
- Asphalt pavements
- Continuum mechanics
- Displacement (mechanics)
- Engineering fundamentals
- Engineering mechanics
- Geotechnical engineering
- Geotechnical investigation
- Gravels
- Infrastructure
- Joints
- Laboratory tests
- Pavement condition
- Pavement deflection
- Pavement rutting
- Pavements
- Solid mechanics
- Structural engineering
- Structural mechanics
- Structural members
- Structural systems
- Subsurface investigation
- Tests (by type)
- Traffic engineering
- Traffic management
- Traffic speed
- Transportation engineering
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