Project Summary
SPK-I forms the foundational phase of a multi-stage initiative to develop next-generation Ultra-Low Carbon Nano-Concrete Composite (ULCnC) tailored for precast construction. This phase established a literature-driven framework to guide the integration of advanced materials—namely SCMs (e.g., GGBFS, Fly Ash, Limestone Powder), Basalt Fibres, and poly-functionalised Graphene Oxide (p-GO)—to enhance early-age performance, reduce embodied carbon, and support demoulding within 12–24 hours in vertical battery mould (VBM) systems.
DBI Partner
Key Outcomes:
- Conducted an extensive literature review to establish a framework for integrating SCMs, basalt fibres, and graphene oxide (GO) in ULCnC systems.
- Developed a comparative summary of material characteristics and performance benefits relevant to precast concrete applications.
- Identified key mechanisms of GO in enhancing hydration, microstructure, and durability in cement composites.
- Highlighted challenges related to GO dispersion, SCM compatibility, and fibre-matrix bonding to guide future experimental work.
- Established foundation for experimental design and multi-material synergy evaluation in subsequent SPK-II phase.
Impact
- Provides a robust, research-backed pathway for decarbonising precast concrete production through advanced material combinations.
- Supports faster demoulding and improved early-age performance critical for vertical battery mould (VBM) systems.
- Enhances potential for commercial adoption of ULCnC technologies by addressing key material and process gaps.
Future work:
- Conduct experimental validation of optimized ULCnC mix designs incorporating SCMs, basalt fibres, and GO.
- Assess rheological, mechanical, and durability performance in lab and pilot precast production environments.
- Optimize GO dispersion strategies in presence of polycarboxylate ether superplasticisers and SCM blends.
- Evaluate fibre-matrix interface properties and impact on crack resistance and toughness.
Acknowledgement
We sincerely thank Spark Projects (SPK) for their collaboration, and the Department of Infrastructure – Decarbonising the Building Industry (DBI) initiative and the University of Melbourne for their funding and support. This work contributes to a transformative roadmap for decarbonised, high-performance precast construction in Australia.