Evaluation of Field-Produced Aramid Fiber–Reinforced Asphalt Mixtures
Publication: Journal of Materials in Civil Engineering
Volume 36, Issue 11
Abstract
This paper summarizes the results of a study that was conducted to evaluate the performance of field-produced aramid fiber-reinforced asphalt mixtures used for resurfacing applications and compare it to that of polymer-modified asphalt mixtures. Twelve test sections were constructed as part of resurfacing projects in Ohio. Two aramid fibers from different sources were used in these projects. During the construction of the test sections, loose asphalt mixtures were collected and were used to prepare samples. Different tests were conducted on the prepared samples. These included the following: semicircular bend and indirect tensile asphalt cracking to evaluate the cracking resistance of prepared samples, the asphalt concrete cracking device test to evaluate the low-temperature cracking resistance of prepared samples, and the Hamburg wheel tracking test to evaluate the resistance of samples to rutting and moisture damage. Results indicated that the effects of the addition of aramid fiber to asphalt mixture vary depending on the type of aramid fiber and mixture properties. In general, Fiber A and Fiber B significantly improved the cracking resistance of mixtures with PG 64-22. Furthermore, mixtures with PG 64-22 binder and aramid fibers had similar or higher cracking resistance as compared to those with PG 70-22M asphalt mixture. The addition of fibers improved the resistance of reinforced mixtures to rutting and moisture damage. The fibers slightly improved the low-temperature cracking resistance of asphalt mixtures. Statistical analysis of testing results indicated that the properties related to the cracking resistance of the fiber mixtures did not significantly change during production.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This research study was supported by the Ohio Department of Transportation (ODOT) and Federal Highway Administration. The contents of this paper reflect the views of the authors who are responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the Ohio Department of Transportation or the Federal Highway Administration. This paper does not constitute a standard, specification, or regulation.
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Information & Authors
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© 2024 American Society of Civil Engineers.
History
Received: Sep 14, 2023
Accepted: Mar 8, 2024
Published online: Sep 4, 2024
Published in print: Nov 1, 2024
Discussion open until: Feb 4, 2025
ASCE Technical Topics:
- Composite materials
- Continuum mechanics
- Cracking
- Design (by type)
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Fiber reinforced composites
- Fiber reinforced polymer
- Fibers
- Fracture mechanics
- Gravels
- Infrastructure
- Load and resistance factor design
- Load factors
- Material mechanics
- Material properties
- Materials characterization
- Materials engineering
- Measurement (by type)
- Mixtures
- Pavement condition
- Pavement rutting
- Pavements
- Polymer
- Solid mechanics
- Structural design
- Structural engineering
- Synthetic materials
- Temperature (by type)
- Temperature effects
- Temperature measurement
- Thermal properties
- Thermodynamics
- Transportation engineering
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