Influence of ATB on Pavement Performance
Publication: Performance Modeling and Evaluation of Pavement Systems and Materials: Selected Papers from the 2009 GeoHunan International Conference
Abstract
In order to study the influence of asphalt treated base (ATB) on pavement performance, a multi-layer elastic theory program is utilized to calculate the stress and strain in different pavement structures. Based on an instant heat conducting hypothesis, a finite element model is established to calculate the temperature stress and the strain of pavement structure when temperature reduces. Then the stress and strain of all the structural layers are calculated considering the corporate effect of loading and temperature. It is found that the stress caused by quickly-lowered temperate is far more lager than that caused by load. Thus it is revealed that the cracking in pavement is mainly caused by the temperature. Through contrast it is proved that the stress and strain caused by load and temperature of pavement with ATB30 are less than those of semi-rigid pavement. So ATB is proved to be an efficient way to decrease crack in asphalt pavement based on above calculation and theory analysis.
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Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Asphalt pavements
- Design (by type)
- Engineering fundamentals
- Gravels
- Infrastructure
- Load factors
- Material mechanics
- Materials engineering
- Measurement (by type)
- Pavement condition
- Pavements
- Strain
- Stress (by type)
- Stress strain relations
- Structural analysis
- Structural design
- Structural engineering
- Temperature effects
- Temperature measurement
- Thermal loads
- Transportation engineering
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