"PhD Position on Resilient Asphalt Materials under Climate Change"

Job description

Ensuring the durability and resilience of future road infrastructure requires asphalt materials that can withstand the combined impacts of climate change and traffic loading. The Mechanistic and Data-driven Approach for Developing Resilient Asphalt Materials under Climate Change (MEDAS) project, funded by the Dutch Research Council (NWO), aims to establish a scientific foundation for designing and managing climate-resilient pavements. While current pavement design practices are largely experience-based and successful under moderate conditions, the increasing frequency of extreme weather events introduces new challenges that demand a fundamental understanding of the interaction between materials, environment, and loading.

This PhD research will focus on developing mechanistic and data-driven tools to assess and predict the long-term performance of asphalt mixtures exposed to climate-induced stresses such as temperature fluctuations, moisture variations, and UV radiation. The study will involve both laboratory experiments and numerical modelling, linking climate data and material behaviour across multiple scales. Particular attention will be paid to how environmental factors accelerate damage, affect healing processes, and alter material properties over time.

You will conduct your PhD research within the Pavement Engineering Section of the Faculty of Civil Engineering and Geosciences at TU Delft, where your work will be part of the broader research programme on sustainable and resilient infrastructure materials. The Pavement Engineering Section is internationally recognised for its research in material characterisation, pavement design, and performance modelling. Its research themes include the ageing and healing of asphalt materials, the development of low-temperature and recycled mixtures, rejuvenation and circularity concepts, and the multi-scale modelling of pavement structures. The section’s state-of-the-art experimental and computational facilities support research from chemical and microstructural characterisation (FTIR, DVS, DSC) to full-scale mechanical testing (four-point bending, ITT), as well as advanced numerical simulation.

The project is carried out in collaboration with Liverpool John Moores University (LJMU) and several industrial partners (BAM Infra, Boskalis, Dura Vermeer, Latexfalt, Iterchimica, TotalEnergies, and Rijkswaterstaat). Although the research is strongly aligned with Dutch road engineering needs, the scientific challenges are of a fundamental nature and globally relevant. You will therefore interact with international researchers and industry specialists, contributing to the development of knowledge that supports sustainable, climate-resilient pavements worldwide.

The Department of Engineering Structures at TU Delft focuses on developing resilient, smart, and sustainable structures and infrastructures. Its research themes—ranging from the mechanics of materials under climate change to full-scale testing and modelling—align closely with the MEDAS objectives. As part of this department, you will benefit from an inclusive, multidisciplinary environment that integrates expertise in materials, mechanics, and infrastructure design to address the societal challenges of sustainability, resilience, and innovation in the built environment.

Job requirements

Need to have:

• MSc in pavement engineering, material science, organic chemistry or a similar area.
• Demonstrable experience with testing and/or modelling (preferred) of bitumen, asphalt concrete or similar materials.
• English proficiency as specified at https://www.tudelft.nl/onderwijs/opleidingen/phd/admission.

Nice to have:

• Demonstrable experience with writing scientific publications.
• Experience in presenting your work.
• Affinity with data analyses.
• Experience with literature studies.
• A preference for working in and with a team.

Conditions of employment

Doctoral candidates will be offered a 4-year period of employment in principle, but in the form of 2 employment contracts. An initial 1,5 year contract with an official go/no go progress assessment within 15 months. Followed by an additional contract for the remaining 2,5 years assuming everything goes well and performance requirements are met.

Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities, increasing from €3059 - €3881 gross per month, from the first year to the fourth year based on a fulltime contract (38 hours), plus 8% holiday allowance and an end-of-year bonus of 8.3%.

As a PhD candidate you will be enrolled in the TU Delft Graduate School. The TU Delft Graduate School provides an inspiring research environment with an excellent team of supervisors, academic staff and a mentor. The Doctoral Education Programme is aimed at developing your transferable, discipline-related and research skills.

The TU Delft offers a customisable compensation package, discounts on health insurance, and a monthly work costs contribution. Flexible work schedules can be arranged.

Will you need to relocate to the Netherlands for this job? TU Delft is committed to make your move as smooth as possible! The HR unit, Coming to Delft Service, offers information on their website to help you prepare your relocation. In addition, Coming to Delft Service organises events to help you settle in the Netherlands, and expand your (social) network in Delft. A Dual Career Programme is available, to support your accompanying partner with their job search in the Netherlands.

Additional information

For more information about this vacancy, please contact Dr. Xueyan Liu via email: X.Liu@tudelft.nl

Application procedure

Are you interested in this vacancy? Please apply no later than 12 January 2026 via the application button and upload:

• CV.
• Motivation letter explaining your interest and your qualifications for this position, and how your skills match the requirements.
• MSc degree.
• 300 words abstract of your MSc thesis.
• 2 selected publications (if any).
• Contact details of two persons who can provide references.

Doing a PhD at TU Delft requires English proficiency at a certain level to ensure that you are able to communicate and interact well, participate in English-taught Doctoral Education courses, and write scientific articles and a final thesis. For more details please check the Graduate Schools Admission Requirements

For information about the application procedure, please contact our secretariat Secr-ES-CiTG@tudelft.nl

Please note:

If your MSc diploma and transcript are not in Dutch, English, French or German and you will be the selected candidate, the TU Delft will ask you to deliver a certified translation in case you will be appointed.

You can apply online. We will not process applications sent by email and/or post.

As part of knowledge security, TU Delft conducts a risk assessment during the recruitment of personnel. We do this, among other things, to prevent the unwanted transfer of sensitive knowledge and technology. The assessment is based on information provided by the candidates themselves, such as their motivation letter and CV, and takes place at the final stages of the selection process. When the outcome of the assessment is negative, the candidate will be informed. The processing of personal data in the context of the risk assessment is carried out on the legal basis of the GDPR: performing a public task in the public interest. You can find more information about this assessment on our website about knowledge security.

Please do not contact us for unsolicited services.