Research on Flow Number of Asphalt Mixture under High Temperature and Heavy Load
Publication: Road Materials and New Innovations in Pavement Engineering
Abstract
Triaxial repeated load permanent deformation tests of two asphalt mixtures were conducted to investigate the flow characteristics of asphalt mixture under high temperature and heavy load. Then, a continuous function between permanent strains versus loading cycles was derived, and flow number was calculated by some algebraic manipulations of the second derivative of the proposed function. It is indicated that permanent strain increase with test temperature and stress, and permanent strain of mixture with larger maximum nominal aggregate size is smaller. The proposed function can well describe the whole three stages of permanent deformation for asphalt mixture. The calculated flow number is also different with mixture gradations and decreases with the stress and temperature. But the decrease range becomes smaller at higher stress levels and temperatures, especially at the extreme condition, and the difference among asphalt mixtures is inconspicuous. At this moment, permanent deformation resistance of different mixtures could not be distinguished by the flow number.
Get full access to this article
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Copyright
© 2011 American Society of Civil Engineers.
History
Published online: Apr 21, 2012
ASCE Technical Topics:
- Continuum mechanics
- Dead loads
- Deformation (mechanics)
- Dynamic loads
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Load tests
- Materials characterization
- Materials engineering
- Measurement (by type)
- Mixtures
- Repeated loads
- Soil dynamics
- Soil mechanics
- Solid mechanics
- Static loads
- Statics (mechanics)
- Stress (by type)
- Structural analysis
- Structural dynamics
- Structural engineering
- Structural mechanics
- Temperature effects
- Temperature measurement
- Tests (by type)
- Thermal loads
- Triaxial loads
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.