GPR Application for Moisture Content Prediction of Cold In-Place Recycling
Publication: Airfield and Highway Pavements 2021
ABSTRACT
Cold in-place recycling (CIR) of asphalt concrete pavement is a rehabilitation technique that is widely applied by many states. The CIR rehabilitation process is thought to be economical and sustainable. One of the limitations of this technique is identifying the moisture content of the pavement layer to allow for traffic opening and placing overlay. In this paper, the feasibility of monitoring moisture content of CIR mixtures during curing using ground-penetrating radar (GPR) was investigated. Several tests, including GPR surveys, lightweight deflectometer, dynamic cone penetrometer, and sand cone tests, were performed to track both the dielectric properties’ and mechanical properties’ progression during curing. The relationship between the dielectric constant and the moisture content of cold in-place recycled asphalt pavements was built using a preliminary mixture theory model. Results show that the dielectric constant is strongly correlated to moisture content and GPR has the potential to monitor moisture content in future research.
Get full access to this article
View all available purchase options and get full access to this chapter.
REFERENCES
Al-Qadi, I., Ghodgaonkar, D., Varadan, V., and Varadan, V. (1991). Effect of Moisture on Asphaltic Concrete at Microwave Frequencies. IEEE Transactions on Geoscience and Remote Sensing, 29(5), 710–717. https://doi.org/10.1109/TGRS.1991.817705.
Al-Qadi, I., Lahouar, S., and Loulizi, A. (2003). Successful Application of Ground Penetrating Radar for Quality Assurance-Quality Control of New pavements. Transportation Research Record. 2003;1861(1):86–97.
Al-Qadi, I., and Lahouar, S. (2005). Measuring layer thicknesses with GPR–theory to practice. Construction Building Materials. 2005;19(10):763–72.
Al-Qadi, I., Leng, Z., Lahouar, S., and Baek, J. (2010). In-place hot-mix asphalt density estimation using ground-penetrating radar. Transportation Research Record. 2010;2152(1):19–27.
Al-Qadi, I., and Leng, Z. (2014). An innovative method for measuring pavement dielectric constant using the extended CMP method with two air-coupled GPR systems. NDT & E International, 66, 90–98. https://doi.org/10.1016/j.ndteint.2014.05.002.
Asphalt Recycling and Reclaiming Association (ARRA). (2015). Basic asphalt recycling manual. U.S. Department of Transportation. Federal Highway Administration.
Halabe, U. B., Chen, H. L., Bhandarkar, V., and Sami, Z. (1997). Detection of Sub-Surface Anomalies in Concrete Bridge Decks Using Ground Penetrating Radar. ACI Materials Journal, Vol. 94, No. 5, Sept.–Oct. 1997, pp. 396–408.
Fernandes, F., Fernandes, A., and Pais, J. (2017). Assessment of the density and moisture content of asphalt mixes of road pavements. Construction and Building Materials. Portugal.
Kleyn, E. G. (1975). The use of the dynamic cone penetrometer. Transvaal Roads Department, Pretoria, South Africa.
Leng, Z., Al-Qadi, I., and Lahouar, S. (2011). Development and validation for in situ asphalt mixture density prediction models. NDT & E International. 2011;44(4):369–75.
Leng, Z., Al-Qadi, I., Shangguan, P., and Son, S. (2012). Field application of ground-penetrating radar for measurement of asphalt mixture density: case study of Illinois route 72 overlay. Transportation Research Record 2012;2304(1):133–41.
Livneh, M., and Ishai, I. (1987). Pavement and material evaluation by a dynamic cone penetrometer. In Proceedings of the 6th International Conference on Structural Design of Asphalt Pavements, Vol. 1 (pp. 665–676).
National Cooperative Highway Research Program (NCHRP). (2017). Material properties of cold in place recycled and full depth reclamation asphalt concrete. Transportation Research Board.
Wang, S., Zhao, S., and Al-Qadi, I. (2018). Continuous real-time monitoring of flexible pavement layer density and thickness using ground penetrating radar. NDT & E International, 100, 48–54.
Information & Authors
Information
Published In
Airfield and Highway Pavements 2021
Pages: 231 - 239
Copyright
© 2021 American Society of Civil Engineers.
History
Published online: Jun 4, 2021
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.