Geo-Congress 2020
Effect of Variation in Moisture Content on the Mechanical Properties of Base Course Constructed with RAP-VA Blends
Publication: Geo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics (GSP 318)
ABSTRACT
The objective of this study was to capture the changes in mechanical properties of the base course when materials are compacted at maximum dry density (MDD) and optimum moisture content (OMC) and then additional water is introduced. The effects of this additional water in the base course is evaluated to understand the effects of water infiltration due to seasonal variation even after the base layer is constructed. Blends of virgin aggregate (VA) and reclaimed asphalt pavement (RAP) were selected for this evaluation. The laboratory test results showed that the addition of water increases the permanent deformation and decreases resilient modulus (both adverse effects). However, samples with better drainage properties (i.e., RAP-VA blends) perform better than base course constructed with VA alone.
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REFERENCES
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Information & Authors
Information
Published In
Geo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics (GSP 318)
Pages: 612 - 620
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8281-0
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
Published in print: Feb 21, 2020
ASCE Technical Topics:
- Asphalt pavements
- Base course
- Compaction (material)
- Engineering fundamentals
- Hydrologic engineering
- Hydrologic properties
- Hydrology
- Infrastructure
- Laboratory tests
- Material mechanics
- Material properties
- Materials characterization
- Materials engineering
- Mechanical properties
- Pavements
- Tests (by type)
- Transportation engineering
- Water and water resources
- Water content
Authors
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