Creating pH-sensitive self-healing concrete using sludge waste for sewers. 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 ....Creating pH-sensitive self-healing concrete using sludge waste for sewers. 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.Read moreRead less
Robust cement-based sensors for smart automation in future infrastructure. Infrastructural health and operation monitoring are core parts of managing built assets. The project aims to develop robust cement-based sensors with integrated self-sensing and hydrophobicity, and to optimise their robustness and resilience for smart automation in future infrastructure. The new sensors are expected to more accurately assess structural health, monitor traffic-flow, decrease the costs of operation and main ....Robust cement-based sensors for smart automation in future infrastructure. Infrastructural health and operation monitoring are core parts of managing built assets. The project aims to develop robust cement-based sensors with integrated self-sensing and hydrophobicity, and to optimise their robustness and resilience for smart automation in future infrastructure. The new sensors are expected to more accurately assess structural health, monitor traffic-flow, decrease the costs of operation and maintenance through enhanced piezoresistivity and serviceability, and gain insights into intrinsic self-sensing and integral water repellency. The outcomes will improve predictions of performance and service, with major reductions in asset management costs through significantly more-efficient operation and maintenance.Read moreRead less
Novel Hydrophobic Concrete for Durable and Resilient Mining Infrastructure. The mining field is harsh with various corrosive media that cause rapid deterioration and ageing of concrete. This project aims to develop a novel hydrophobic concrete with integrated water-proofing and self-healing capacities and optimise its efficacy and cost-effectiveness for durable and resilient mining infrastructure using hybrid water-repellent nanoparticles and raw crystalline admixtures. The new hydrophobic concr ....Novel Hydrophobic Concrete for Durable and Resilient Mining Infrastructure. The mining field is harsh with various corrosive media that cause rapid deterioration and ageing of concrete. This project aims to develop a novel hydrophobic concrete with integrated water-proofing and self-healing capacities and optimise its efficacy and cost-effectiveness for durable and resilient mining infrastructure using hybrid water-repellent nanoparticles and raw crystalline admixtures. The new hydrophobic concrete is expected to significantly improve structural safety, durability, and service life of mining infrastructure while simultaneously reducing protection costs, repair needs, and reconstruction. The outcomes will offer desirable benefits for Australia’s mining industry, with significant reductions in maintenance costs.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240101261
Funder
Australian Research Council
Funding Amount
$429,347.00
Summary
Carbon-negative concrete produced with innovative artificial aggregates. To achieve net-zero carbon emissions in Australia by 2050, this project proposes to develop carbon-negative concrete using two typical industrial wastes, recycled powder from construction and demolition waste and drinking water treatment sludge from the water industry. This project first aims to develop innovative artificial aggregates containing sludge-derived biochar and recycled powder under carbonation curing. The devel ....Carbon-negative concrete produced with innovative artificial aggregates. To achieve net-zero carbon emissions in Australia by 2050, this project proposes to develop carbon-negative concrete using two typical industrial wastes, recycled powder from construction and demolition waste and drinking water treatment sludge from the water industry. This project first aims to develop innovative artificial aggregates containing sludge-derived biochar and recycled powder under carbonation curing. The developed artificial aggregates with superior carbon absorption capacity are then used to produce carbon-negative concrete. The properties of artificial aggregates and carbon-negative concrete will be comprehensively investigated. This project creates a green engineering solution to stockpiled industrial wastes.
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