Development and Durability 3D Printed Self-Healing Concrete

About this project

This project focuses on the development of a novel 3D-printed self-healing concrete with enhanced durability for sustainable construction applications. The research aims to optimize the material composition by incorporating biological or chemical self-healing agents into the 3D-printable concrete mix, ensuring that the material can autonomously repair microcracks that occur during its lifespan. Key objectives include studying the printability of the self-healing concrete, assessing its hydration, workability, mechanical properties, and evaluating its healing efficiency, long-term durability under various environmental conditions. Particularly, the effects of addition of self-healing agents on rheology will be investigated. The project will also explore the compatibility of self-healing mechanisms with different 3D printing techniques and layer adhesion challenges, aiming to create a resilient, cost-effective material that reduces maintenance and extends the service life of infrastructure.

This project will provide significant benefits to industry partners and stakeholders, offering actionable solutions for the construction sector. By developing low-carbon self-healing capsules and integrating fibers or FRP reinforcement into 3D-printed concrete, this research will enhance the durability and performance of concrete structures. It will deliver a cost-effective, sustainable solution to improve the longevity of 3D-printed concrete (3DPC), particularly in load-bearing applications, and introduce scalable material technologies for broader industry use. The project will generate advanced knowledge on self-healing mechanisms, material compatibility, and the behaviour of FRP-reinforced 3DPC under extreme conditions.

What you’ll do

You will carry out Experimental studies, theoretical analysis and numerical modelling.

Where you’ll be based 

You’ll be based at the Sustainable Infrastructure and Resource Management (SIRM) centre at the University of South Australia undertakes research in physical infrastructure management and the sustainable management of assets. SIRM applies circular economy philosophy and carbon reduction solutions to ensure sustainable communities throughout the world. SIRM recognises that the challenge of moving to a more sustainable future requires an understanding of the complexity and interactions of human, natural, and built systems. We bring together diverse research expertise to address significant societal challenges at the interface of the natural and built environments at all scales. We offer clients the potential to address real problems using multidisciplinary teams. Our goal is to efficiently use resources to manage the natural and built environments sustainably. Financial Support 

This project is funded for reasonable research expenses. Additionally, a living allowance scholarship of $35,200 per annum is available to eligible applicants. Australian Aboriginal and/or Torres Strait Islander applicants will be eligible to receive an increased stipend rate of $52,352 per annum (2025 rate). A fee-offset or waiver for the standard term of the program is also included. For full terms and benefits of the scholarship please refer to our scholarship information For domestic students or international students.

Eligibility and Selection

This project is open to applications from both Domestic and International applicants.

Applicants must meet the eligibility criteria for entrance into a PhD. 

Additionally, applicants must meet the project selection criteria: 

• Hold a Bachelor degree in Civil Engineering, Structural Engineering, Construction Materials, Material Science or Mechanical Engineering, and Masters degree in Civil Engineering, etc.
• Have an in-depth knowledge in the fields of construction materials and structural engineering and analytical modelling 
• Have a strong commitment to interdisciplinary research and the acquisition of major and collaborative projects.

All applications that meet the eligibility and selection criteria will be considered for this project. A merit selection process will be used to determine the successful candidate.

The successful applicant is expected to study full-time and to be based at our Mawson Lakes campus in the north of Adelaide. 

Essential Dates 

Applicants are expected to start in a timely fashion upon receipt of an offer. Extended deferral periods are not available. Applications close on Thursday, 17 July, 2025.