Geo-Congress 2020
Sensitivity Analysis of New Reflective Cracking Model in Pavement Mechanistic-Empirical Design
Publication: Geo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics (GSP 318)
ABSTRACT
Reflective cracking is one of the most common types of distresses that occur in composite pavement system. This study conducted extensive one-at-a-time (OAT) sensitivity analyses to determine the effects of traffic levels, structural design inputs, and material properties on AASHTOWare pavement mechanistic-empirical design (PMED) long-term (20 years) reflective cracking performance predictions for Iowa asphalt concrete (AC) over jointed plain concrete pavements (JPCP). The results showed that the most sensitive input to long-term (20 years) PMED reflective cracking predictions was joint spacing. The moderately sensitive inputs included JPCP layer thickness, AC thickness, tensile strength at -10 °C (14 °F), transfer joint load transfer equivalent (LTE), and the ratio of slabs distressed before and after restoration. The rest of the inputs investigated had either negligible or no impact on long-term (20 years) PMED reflective cracking predictions.
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ACKNOWLEDGEMENTS
The authors gratefully acknowledge the Iowa Department of Transportation (DOT) for supporting this study and Mr. Chris Brakke and Mr. Fereidoon (Ben) Behnami in the Iowa Department of Transportation (IA DOT) for all the technical assistance provided. The contents of this paper reflect the views of the authors, who are responsible for the facts and accuracy of the data presented herein. The contents of this paper do not necessarily reflect the official views of the IA DOT.
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Information & Authors
Information
Published In
Geo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics (GSP 318)
Pages: 508 - 516
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
ASCE Technical Topics:
- Analysis (by type)
- Asphalt concrete
- Composite materials
- Continuum mechanics
- Cracking
- Design (by type)
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Fiber reinforced composites
- Fracture mechanics
- Gravels
- Highway and road design
- Infrastructure
- Material mechanics
- Material properties
- Materials engineering
- Pavement condition
- Pavement design
- Pavements
- Sensitivity analysis
- Sight distances
- Solid mechanics
- Structural design
- Traffic analysis
- Traffic engineering
- Transportation engineering
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