composite / Panelised / Geopolymer Panel
Geopolymer composite panel (15mm, 20mm, 25mm precast panels)
Geopolymer panels made with fly ash/slag binders (e.g., E?Crete) target ~80% lower CO2 than OPC and use standard strength grades around 20?50 MPa for precast products.
Atlas code
COM-PNL-GPL-001
At-a-glance signals
Geopolymer panels made with fly ash/slag binders (e.g., E?Crete) target ~80% lower CO2 than OPC and use standard strength grades around 20?50 MPa for precast products.
Overview
Executive summary
Geopolymer composite panels can be produced using Australian geopolymer concrete technologies such as Zeobond E?Crete, which use fly ash and slag to reduce embodied CO2 by around 80% compared to OPC. E?Crete is specified using standard concrete strength grades (e.g., 20?50 MPa), indicating typical compressive performance for geopolymer panels and precast products.
Best when…
- 70-90% reduction in embodied carbon versus OPC
- Superior chemical and acid resistance
- Excellent fire resistance (non-combustible)
- High durability in marine environments
- Utilises 75%+ recycled industrial waste
- Lower shrinkage than traditional concrete
- Rapid strength gain potential
- 50+ year design life
Top advantages
- 01 70-90% reduction in embodied carbon versus OPC
- 02 Superior chemical and acid resistance
- 03 Excellent fire resistance (non-combustible)
- 04 High durability in marine environments
- 05 Utilises 75%+ recycled industrial waste
Top limitations
- 01 Not commercially available in standard panel thicknesses
- 02 Requires custom manufacturing
- 03 Higher initial cost than conventional panels
- 04 Limited local manufacturers
- 05 Requires Performance Solution for NCC compliance
Technical
Physical ·7
- Density
- 2100-2600 kg/m³
- Specific gravity
- 2.1-2.6
- Porosity
- 10-20 %
- Water absorption
- 5-15 %
- UV resistance
- Excellent // No degradation expected
- Chemical resistance
- Excellent // Superior to OPC, except HF
- pH tolerance
- 2-14
Mechanical ·5
- Tensile strength
- 4-7 MPa
- Compressive strength
- 20?50 MPa (standard strength grades for E?Crete geopolymer concrete) MPa
- Flexural strength
- 6-12 MPa
- Poisson's ratio
- 0.15-0.25
- Creep resistance
- Superior // Lower creep than OPC
Sustainability & Health
Embodied carbon & energy ·5
- Embodied carbon
- ?80% lower CO2 vs OPC (E?Crete LCA claim)
- Carbon footprint
- 0.118 // kgCO₂e/kg binder (Wagners CFD ISO 14067:2018)
- Recycled content
- 75 % // % minimum (GGBS/fly ash content)
- Renewable content
- 0 % // % (industrial by-products)
- Circular score
- High // Industrial waste utilisation
Compliance & Fire
Fire performance ·5
- Combustibility class
- Non-combustible // Expected per AS 1530.1
- Ignition temp
- N/A °C // Non-combustible
- Flame spread index
- 0
- Smoke dev. index
- 0
- Heat release rate
- 0 // kW/m² (non-combustible)
Cost & Lifecycle
Capex & lead time ·3
- Lead time
- 8-12 // weeks (custom manufacture)
- Annual maintenance
- 0-5 // $/m²/year (minimal maintenance)
- Market availability
- Custom order // Not standard stock
Service life & durability ·2
- Expected lifespan
- 50+ // years (design life)
- Maintenance interval
- Annual inspection // Recommended
Layer D
Where it's used
External cladding systems
Internal wall panels
Fire-rated partitions
Marine environment facades
Chemical-resistant panels
Infrastructure applications
Bushfire-prone area cladding