NDT Webinar | Real-Time Processing and Visualization Techniques of Asphalt Pavement Construction Quality using Roller-Mounted GPR
the chair
The transition toward Industry 4.0 in civil infrastructure demands a shift from retrospective sampling to proactive, real-time monitoring. To address the spatial gaps and delayed feedback of traditional asphalt quality checks, high-frequency sensing must be integrated directly into the construction workflow.
In this webinar, Dr. Siqi Wang will present a GPR-based intelligent compaction automation system for real-time pavement quality monitoring. By integrating ground-penetrating radar (GPR) with GPS-RTK positioning, the system enables continuous dielectric constant measurements and the high-resolution thermal mapping of the compaction status during asphalt paving. Key innovations include: (1) vibration-resistant GPR mounting designs that improve signal stability under field construction conditions; (2) a timestamp–path interpolation synchronization algorithm that achieves a cm-level spatial mapping accuracy; and (3) a surface reflection calibration methodology that compensates for water film interference and vibration-induced measurement errors.
The developed platform implements automated Alpha-Shape spatial mapping and time-series compaction pattern recognition algorithms, generating intuitive thermal maps of density and temperature fields at a 5cm resolution. Field validations demonstrated system robustness with PWL values of 96.4-97.4, effectively guiding real-time compaction adjustments. This technology provides a novel solution for continuous quality control in smart pavement construction, significantly enhancing construction efficiency and quality consistency through immediate data-driven feedback. This system has been successfully applied in multiple large-scale infrastructure projects, marking a critical advancement in non-destructive testing for intelligent civil engineering applications.
This session will provide insight into the engineering strategies required to ensure data accuracy in dynamic construction environments and will explore how advanced algorithms can transform raw GPR signals into reliable tools for real-time quality management.
Date: 25 February 2026
Time: 2.30 pm CET | 8.00am EST| 9.30 pm CST Asia
Webinar ID: 837 1881 5511
Webinar Secretariat: journal.webinar@mdpi.com
Meet the Event Chair
Meet Our Speakers
Dr. Siqi Wang
Southeast University, China;
Dr. Siqi Wang received his B.Eng. and M.Sc. degrees from Southeast University, Nanjing, China, in 2009 and 2013 and a PhD from the University of Illinois at Urbana–Champaign, Urbana, USA, in 2021. He is currently an Associate Professor and Deputy Director of the Department of Road Engineering, School of Transportation, Southeast University. His research interests include non-destructive testing and the evaluation of infrastructures using ground-penetrating radar, the development of advanced digital signal processing techniques for real-time condition assessments, and risk analysis.
Sponsors and Partners
Organizer
The webinar was hosted via Zoom and required registration to attend. The full recording can be found below. In order to learn about future webinars, you can sign up to our newsletter by clicking “Subscribe” at the top of the page.
To honor Professor Michele Parrinello’s enduring legacy in advancing computational science, MDPI officially launched the Michele Parrinello Award on 1 November 2025. This biennial international award recognizes senior researchers who have made outstanding contributions to computational physical sciences, encompassing physics, chemistry, and materials science.
Chair of the Award Committee: Prof. Xin-Gao Gong, Fudan University, China.
Prize:
- EUR 50,000.
- An award medal and a certificate.
Nomination Deadline: 31 March 2026.
Submit your nomination online: https://mparrinelloaward.org/.
