Engineering in Practice

Events and Activities

Webinar on Development and Application of Polyurethane as a Sustainable Pavement Material (Jointly organized by HKIE CVD and PolyU)

Technical Seminar:
Development and Application of Polyurethane as a Sustainable Pavement Material

Date, time & venue

26 October 2022 (Wednesday), 17:00-18:00, Seminar via Zoom Meeting

Organized by

HKIE Civil Division and The Hong Kong Polytechnic University

Programme Highlight

As a major part of transportation infrastructure, pavements are expected not only to carry more traffic load (longer durability), but also to provide additional sustainable functions (permeability, noise reduction, low emission and energy conservation). Porous asphalt (PA) with open-graded structure and large air void content is a functional pavement material, which offers various attractive benefits, such as reducing tire-pavement noise, decreasing water splashing and hydroplaning on rainy days, improving pavement surface friction, and alleviating urban heat island effects. However, as the pore structures of PA are often exposed to the moist environment, PA pavement usually has relatively short service life because of early-age moisture damage. To improve the resistance of PA to moisture damage, substitution, or modification of the asphalt binder by a thermoset material, polyurethane (PU), has been found effective without compromising its sustainable properties. However, as a novel pavement material, the fundamental modification and deterioration mechanism of PU pavement materials in various loading environments has not been fully understood yet. A comprehensive evaluation and prediction system for the polyurethane paving materials is still lacking. Hence, in this webinar, Dr. Lu aims to introduce the engineering performances of PU pavement materials and further discuss the modification and deterioration mechanism by considering various service conditions.

*Please complete the on-line registration at




Free of Charge.


Dr. Guoyang LU is a Research Assistant Professor and a member of the Research Center for Resources Engineering towards Carbon Neutrality at The Hong Kong Polytechnic University. Dr. Lu received his bachelor degree of Highway and Bridge Engineering from Southeast University in Nanjing China (2013), his master degree of Structural Engineering from the University of Sheffield in UK (2015), and his PhD degree in Highway Engineering from RWTH Aachen University in Germany (2019). His research interests mainly include sustainable and smart pavement materials and technologies, multiscale and multiphysics modelling of pavement materials, and nondestructive evaluation of transportation infrastructure. His research projects have been funded by various sources such as the Research Grant Council and German Research Foundation. He has published 75 papers including over 50 SCI journal papers (h-index: 20), and has received various research awards, such as the Best Paper Award of 2021 Transportation Research Congress (TRC), Outstanding Service Award of 2020 Academy of Pavement Science and Engineering (APSE), Outstanding Graduate Student Awards of 2019 International Association of the Chinese Infrastructure Professionals (IACIP), and the Best Presentation Award in 7th International transportation Ph.D. symposium in 2018. Dr. Lu is the secretary of the Asphalt Pavement Discipline of the World Transportation Convention (WTC) Scientific Committee, chair of Young Scholar Committee of the International Association of Chinese Infrastructure Professionals (IACIP), member of the Standing Committee on Polymer Concretes, Adhesives, and Sealers (AKM90) of TRB, and academic member of Academy of Pavement Science and Engineering (APSE). He also serves as an Editor of the Journal of Municipal technology, Young Academic Editor of Journal of Road Engineering, and Journal of Traffic and Transportation Engineering.

Registration & Enquiries

Please complete the on-line registration at The number of participants is limited to 500 on a first-come-first served basis. Priority will be given to members of the Civil Division.

Email registration will not be accepted. Successful applicants will be informed by email and provided a link to the Zoom Meeting at the designated time slot. Participants need to sign in using the membership no. and name entered at the time of registration. A CPD certificate will be issued 3 weeks after the seminar based on this membership no. and name.

For enquiries, please contact Mr. Alan Yan via email: