Precast concrete plank, prestressed (110mm, 125mm, 150mm, 200mm)
Factory-manufactured prestressed concrete floor planks offering spans of 4.5-12m, non-combustible fire performance, and 100+ year service life per AS 3725:2007
Factory-manufactured prestressed concrete floor planks offering spans of 4.5-12m, non-combustible fire performance, and 100+ year service life per AS 3725:2007
Prestressed concrete planks are precast structural floor elements manufactured using high-strength concrete (50-80 MPa) with pretensioned steel reinforcement. These planks are produced in controlled factory conditions using European extrusion technology, achieving consistent quality and dimensional tolerances of ±5mm per AS 3850.2:2015. The specific thicknesses requested require custom manufacture in Australia, where standard production favours metric increments.
- Rapid installation (80-200 m²/day)
- No propping required during installation
- Immediate working platform after placement
- Fire resistance up to 4 hours
- 100+ year design service life
- Zero VOC emissions
- 100% recyclable at end of life
- Excellent acoustic mass (Rw 48-58 dB)
- High thermal mass for passive design
- Suitable for all BAL ratings including BAL-FZ
- 01 Rapid installation (80-200 m²/day)
- 02 No propping required during installation
- 03 Immediate working platform after placement
- 04 Fire resistance up to 4 hours
- 05 100+ year design service life
- 01 Custom manufacture required for specified thicknesses
- 02 Requires crane access for installation
- 03 Poor impact sound insulation without toppings
- 04 Limited availability in regional areas
- 05 2-4 week lead times for non-standard sizes
- Density
- 2200 kg/m³
- Specific gravity
- 2.2
- Porosity
- 8 %
- Water absorption
- 5 %
- Hardness
- 7
- UV resistance
- excellent // Concrete is UV stable
- Chemical resistance
- good // pH 6.5-12 tolerance
- pH tolerance
- 6.5-12
- Surface roughness
- 3 µm
- Tensile strength
- 4 MPa
- Compressive strength
- 50 MPa
- Flexural strength
- 6.5 MPa
- Shear strength
- 4 MPa
- Poisson's ratio
- 0.2
- Impact resistance
- high // Qualitative assessment
- Creep resistance
- good // Low creep with prestress
- Embodied carbon
- 110 kgCO2e/m² Per m² of plank floor area (110mm prestressed plank).
- Carbon footprint
- 305
- Embodied energy
- 2.1 MJ/kg
- Water footprint
- 180 L/kg
- Recycled content
- 20 %
- Renewable content
- 0 %
- Circular score
- 85
- Combustibility class
- non-combustible // AS 1530.1
- Fire resistance level
- 90-240 // minutes (thickness dependent)
- Flame spread index
- 0
- Smoke dev. index
- 0
- Heat release rate
- 0
- Material cost (range)
- 45-100 // $/m² (supply only)
- Material cost (per unit)
- 72.5 // $/m² (average)
- Lead time
- 2-4 weeks // Custom manufacture
- Lifecycle cost
- 150 // $/m² (100-year NPV)
- Annual maintenance
- 0.50 // $/m²/year
- Market availability
- custom-order // Non-standard sizes
- Expected lifespan
- 100
- Maintenance interval
- 10
- Warranty period
- 1