Real-time asphalt concrete pavement compaction monitoring using ground penetrating radar

Siqi Wang, Imad L. Al-Qadi, Shan Zhao, Qingqing Cao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Real-time density monitoring during pavement compaction process is crucial to ensure asphalt concrete (AC) construction quality. Ground penetrating radar (GPR) may be used for continuous real-time AC density estimation using AC and its components dielectric constants. However, the effect of surface moisture, resulted from roller water sprays, jeopardizes the predicted AC density accuracy. While algorithms were developed to remove the surface moisture effect, they are only applicable to 2 GHz GPR antenna. This study proposed a novel algorithm to remove surface moisture effect based on "frequency-select effect." This algorithm is applicable to most of the GPR antenna central frequencies. The Al-Qadi, Lahouar, Leng (ALL) density prediction model was used in this study. Static field tests were performed using both 2 GHz and 1 GHz air-coupled antenna at the Illinois Center for Transportation (ICT) of UIUC. The GPR signals were processed through proposed algorithm using power spectrum of the surface reflections. There is a high correlation between AC dielectric constant and density; hence, the dielectric constant ground-truth values were used to estimate the errors using the proposed algorithm. The proposed algorithm was found to be efficient and accurate; errors of dielectric constant are less than 3% for the 2 GHz case and 5% for the 1 GHz case, respectively.

Original languageEnglish (US)
Title of host publicationAirfield and Highway Pavements 2019
Subtitle of host publicationInnovation and Sustainability in Highway and Airfield Pavement Technology - Selected Papers from the International Airfield and Highway Pavements Conference 2019
EditorsImad L. Al-Qadi, Hasan Ozer, Andreas Loizos, Scott Murrell
PublisherAmerican Society of Civil Engineers
Pages106-111
Number of pages6
ISBN (Electronic)9780784482476
DOIs
StatePublished - Jan 1 2019
EventInternational Airfield and Highway Pavements Conference 2019: Innovation and Sustainability in Highway and Airfield Pavement Technology - Chicago, United States
Duration: Jul 21 2019Jul 24 2019

Publication series

NameAirfield and Highway Pavements 2019: Innovation and Sustainability in Highway and Airfield Pavement Technology - Selected Papers from the International Airfield and Highway Pavements Conference 2019

Conference

ConferenceInternational Airfield and Highway Pavements Conference 2019: Innovation and Sustainability in Highway and Airfield Pavement Technology
CountryUnited States
CityChicago
Period7/21/197/24/19

Keywords

  • Asphalt concrete pavement compaction
  • Ground penetrating radar
  • Real-time density monitoring
  • Surface moisture

ASJC Scopus subject areas

  • Mechanics of Materials
  • Civil and Structural Engineering

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  • Cite this

    Wang, S., Al-Qadi, I. L., Zhao, S., & Cao, Q. (2019). Real-time asphalt concrete pavement compaction monitoring using ground penetrating radar. In I. L. Al-Qadi, H. Ozer, A. Loizos, & S. Murrell (Eds.), Airfield and Highway Pavements 2019: Innovation and Sustainability in Highway and Airfield Pavement Technology - Selected Papers from the International Airfield and Highway Pavements Conference 2019 (pp. 106-111). (Airfield and Highway Pavements 2019: Innovation and Sustainability in Highway and Airfield Pavement Technology - Selected Papers from the International Airfield and Highway Pavements Conference 2019). American Society of Civil Engineers. https://doi.org/10.1061/9780784482476.012