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Creating pH-sensitive self-healing concrete using sludge waste for sewers (ARC Discovery Project administered by University of South Australia) (2023–2026)

Abstract:
In Australia, our 117,000 km of concrete sewer pipes are currently internally corroding at a depth rate of 1-3 mm per annum. The repair of deteriorated concrete is costly and often short-lived. Based on an advanced composite technology, this project will develop a pH-sensitive self-healing concrete that can repair itself without human intervention at the early stage of corrosion. Sludge waste from drinking water treatment will be utilised as a healing agent to mitigate the corrosion. Combined experiments and molecular dynamics simulation will uncover all aspects of the healing process to enable the practical application of this technology. The findings will extend the lifetime of concrete structures and promote a circular economy.
Grant type:
University of South Australia
Researchers:

  • Professor Chien Ming Wang

    Professor
    School of Civil Engineering
    Faculty of Engineering, Architecture and Information Technology

  • Dr Shujian Chen

    Lecturer in Structural Engineering
    School of Civil Engineering
    Faculty of Engineering, Architecture and Information Technology
Funded by:
University of South Australia