Archived
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Location
Lexington, Kentucky
Start Date
6-5-2026 1:30 PM
End Date
6-5-2026 2:00 PM
Description
The increasing demand for sustainable construction materials as well as decarbonising the power industry has driven research into alternative road and pavement construction methods. One such alternative, available in significant volumes, is coal combustion products (CCPs), which can reduce environmental impact and preserve natural resources while maintaining or improving performance characteristics. This paper presents the outcomes of a multi-year, full-scale road repair trial at Stanwell Power Station, approximately 30 km southwest of Rockhampton in Queensland. The trial was designed to rigorously assess the performance of experimental flexible and rigid pavements, containing significant amounts of CCPs in various structural layers, against conforming control pavements (i.e., no CCPs in critically stressed pavement layers). The trial entailed a significant partnership between a major electricity generator, Stanwell Corporation Ltd, and a global design and consultancy firm, Arcadis. It also involved local ready-mix concrete suppliers, quarry material suppliers, local concrete masonry manufacturers and a medium-sized civil construction contractor with significant road construction experience. The pavements were designed to State Road Authority (SRA) standards and involved the reconstruction of the approaches of a heavily trafficked intersection. The trial provided robust, independently verified evidence, supporting the use of CCPs in road construction, with monitoring and evaluation methodologies aligned to peak body (e.g., Austroads) and SRA requirements. These findings are intended to demonstrate to SRAs and contractors that high CCP utilisation in pavement construction is a viable, sustainable alternative to traditional materials, with the outcomes of this road repair trial indicating minimal compromise in performance, while in service over the five-year trial period.
Document Type
Presentation
Archival?
Archival
Included in
Energy Systems Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Mining Engineering Commons, Oil, Gas, and Energy Commons, Structural Materials Commons, Sustainability Commons
High CCP Utilisation in Road Repairs: Demonstration, Monitoring and Outcomes for State Road Authorities in Australia
Lexington, Kentucky
The increasing demand for sustainable construction materials as well as decarbonising the power industry has driven research into alternative road and pavement construction methods. One such alternative, available in significant volumes, is coal combustion products (CCPs), which can reduce environmental impact and preserve natural resources while maintaining or improving performance characteristics. This paper presents the outcomes of a multi-year, full-scale road repair trial at Stanwell Power Station, approximately 30 km southwest of Rockhampton in Queensland. The trial was designed to rigorously assess the performance of experimental flexible and rigid pavements, containing significant amounts of CCPs in various structural layers, against conforming control pavements (i.e., no CCPs in critically stressed pavement layers). The trial entailed a significant partnership between a major electricity generator, Stanwell Corporation Ltd, and a global design and consultancy firm, Arcadis. It also involved local ready-mix concrete suppliers, quarry material suppliers, local concrete masonry manufacturers and a medium-sized civil construction contractor with significant road construction experience. The pavements were designed to State Road Authority (SRA) standards and involved the reconstruction of the approaches of a heavily trafficked intersection. The trial provided robust, independently verified evidence, supporting the use of CCPs in road construction, with monitoring and evaluation methodologies aligned to peak body (e.g., Austroads) and SRA requirements. These findings are intended to demonstrate to SRAs and contractors that high CCP utilisation in pavement construction is a viable, sustainable alternative to traditional materials, with the outcomes of this road repair trial indicating minimal compromise in performance, while in service over the five-year trial period.
