Thermal Properties of Asphalt Pavements Modified with a Lightweight Silica-Based Composite
Publication: Journal of Materials in Civil Engineering
Volume 35, Issue 8
Abstract
Pavements are exposed to different external factors such as traffic loading, levels of moisture, and ambient temperature fluctuations. External temperature change affects the pavement’s temperature profile and therefore its behavior. Previous research states that the pavement’s surface temperature cannot be addressed by adjusting its thermal properties because it primarily relies on the color of the surface. Furthermore, the temperature gradients in the pavement’s temperature profile can be associated with thermal cracking, which is an aspect that has not been fully investigated. The objective of this article is to analyze the temperature profile of a modified asphalt pavement and its effects on the thermal gradients in different seasons. Consequently, the thermal properties of a modified asphalt pavement with a novel silica-based composite, developed at Arizona State University (ASU), called “aMBx” were calculated. Three types of mixtures were considered in this study: Control (0% aMBx), 10% aMBx, and 30% aMBx contents by weight of asphalt binder in the mixture. Moreover, slabs of 7.5 cm and 15 cm in thickness were built to monitor the thermal behavior in the field using wireless thermocouples, where the temperature was monitored and recorded for one year. In addition, a pavement temperature model was implemented using validated software developed at ASU. The full pavement temperature profile was simulated for the three types of asphalt mixtures discussed in this study. The results showed that the pavement surface temperature can be managed by changing the thermal properties, which, in this case, was driven by the materials and thickness of the materials. The temperature gradient was lower for the aMBx-modified pavements. Therefore, it was concluded that aMBx-modified asphalt pavements may lead to lower thermal susceptibility.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request:
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ACTScalc software was used to forecast and analyze the temperature data and simulations.
All data, models, and code generated or used during the study appear in the published article such as the temperature measurements and results obtained in the laboratory.
Acknowledgments
The authors would like to thank the Global Kaiteki Center at Arizona State University for the funding support. Additional support was provided by The National Center of Excellence for SMART Innovations and the Advanced Pavement Laboratory at ASU. Based on the Program Colombia Cientifica focuses/challenges related to Sustainable Energy, this work serves as a tool for Sustainable Construction and a Cleaner Transportation development. The authors would like to acknowledge the invaluable support provided by the Colombian Program Colombia Cientifica and the Scholarship Fulbright—Pasaporte a la Ciencia.
Author contributions: Carlos J. Obando performed all laboratory tests and data analysis, experimental plan, manuscript writing, and definition of the research scope. Jolina J. Karam supported laboratory experiments, data analysis, and manuscript editing. Jose R. Medina and Kamil E. Kaloush provided overall guidance for the research conduct, interpretation of the test results, and manuscript editing. The data supporting the findings of this study are available from the corresponding author, Carlos Obando, upon request.
References
Aerogel.org. 2008. “What is aerogel?” Accessed November 3, 2022. http://www.aerogel.org/?p=3.
Asphalt Institute. 2001. Superpave mix design. Superpave series no. 2 (SP-02). Lexington, KY: Asphalt Institute.
Bueno, M., M. R. Kakar, Z. Refaa, J. Worlitschek, A. Stamatiou, and M. N. Partl. 2019. “Modification of asphalt mixtures for cold regions using microencapsulated phase change materials.” Sci. Rep. 9 (1): 20342. https://doi.org/10.1038/s41598-019-56808-x.
Carlson, J. D., R. Bhardwaj, P. E. Phelan, K. E. Kaloush, and J. S. Golden. 2010. “Determining thermal conductivity of paving materials using cylindrical sample geometry.” J. Mater. Civ. Eng. 22 (2): 186–195. https://doi.org/10.1061/(ASCE)0899-1561(2010)22:2(186).
Chadbourn, B. A., E. L. Skok Jr., D. E. Newcomb, B. L. Crow, and S. Spindle. 1999. The effect of voids in mineral aggregate (VMA) on hot-mix asphalt pavements. Minneapolis: Minnesota DOT.
Chen, J., H. Wang, and H. Zhu. 2017. “Analytical approach for evaluating temperature field of thermal modified asphalt pavement and urban heat island effect.” Appl. Therm. Eng. 113 (Feb): 739–748.
City of Phoenix. 2012. Standard specifications and details for public works construction. Phoenix: City of Phoenix.
Gui, J., P. E. Phelan, K. E. Kaloush, and J. S. Golden. 2007. “Impact of pavement thermophysical properties on surface temperatures.” J. Mater. Civ. Eng. ASCE 19 (8): 683–690. https://doi.org/10.1061/(ASCE)0899-1561(2007)19:8(683).
Haselbach, L. 2009. Pervious concrete and mitigation of the urban heat Island effect. Washington, DC: Transportation Research Board of the National Academies.
Huang, D., M. Zhang, L. Shi, Q. Yuan, and S. Wang. 2018. “Effects of particle size of silica aerogel on its nano-porous structure and thermal behaviors under both ambient and high temperatures.” J. Nanopart. Res. 20 (11): 1–15. https://doi.org/10.1007/s11051-018-4419-8.
Ling, M., Y. Chen, S. Hu, X. Luo, and R. L. Lytton. 2019. “Enhanced model for thermally induced transverse cracking of asphalt pavements.” Constr. Build. Mater. 206 (May): 130–139. https://doi.org/10.1016/j.conbuildmat.2019.01.179.
Obando, C. J. 2022. Development of a novel aerogel-based modified bituminous materials. Tempe, AZ: Arizona State Univ.
Obando, C. J., and K. E. Kaloush. 2021. “Estimating the thermal conductivity of asphalt binders.” J. Test. Eval. 50 (2): 1–13. https://doi.org/10.1520/JTE20210208.
Ohanian, H. C., and J. T. Markert. 2007. Physics for engineers and scientists. 3rd ed. New York: W.W Norton & Company.
Pavement Interactive. 2021. “Theoretical maximum specific gravity.” Accessed January 21, 2021. https://pavementinteractive.org/reference-desk/testing/asphalt-tests/theoretical-maximum-specific-gravity/.
Sen, S. 2015. Impact of pavements on the urban heat Island. Urbana, IL: Univ. of Illinois at Urbana-Champaign.
ShengYue, W., Z. QiYang, D. YingNa, and S. PeiDong. 2013. “Unidirectional heat-transfer asphalt pavement for mitigating the urban heat island effect.” J. Mater. Civ. Eng. 26 (5): 812–821. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000872.
Stempihar, J., T. Pourshams-Manzouri, K. Kaloush, and M. Rodezno. 2012. porous asphalt pavement temperature effects on overall urban heat Island. Washington, DC: Transportation Research Board of National Academies.
Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 35 • Issue 8 • August 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Jul 8, 2022
Accepted: Nov 14, 2022
Published online: May 16, 2023
Published in print: Aug 1, 2023
Discussion open until: Oct 16, 2023
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