construction
Expanded polystyrene or EPS is a lightweight cellular plastic foam material derived from petroleum and natural gas by-products. EPS is economical, sturdy and efficient and meets the Standards Association of Australia Australian Standard AS/NZS 4859.1-2018. No CFCs are used to mould EPS.
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Physical Property | Unit | L | SL | S | M | H | VH | Test Method |
|---|---|---|---|---|---|---|---|---|
Compression at 10% deformation, min. | kPa | 50 | 70 | 85 | 105 | 135 | 165 | AS 2498.3 |
Cross-breaking strength, min | kPa | 95 | 135 | 165 | 200 | 260 | 320 | AS 2498.4 |
Rate of water vapour transmission (max. measured parallel to rise at 23°C | ug/m²s | 710 | 630 | 580 | 520 | 460 | 85400 | AS 2498.5 |
Dimensional stability of legth (max) at 70°C dry condition 7 days | percent | 1 | 1 | 1 | 1 | 1 | 1 | AS 2498.6 |
Thermal resistance (min.)at a mean temperature of 23°C (50mm sample) | m²K/W | 50 | 70 | 85 | 85 | 85 | 85 | AS/NZS 4859.1 |
Flame propogation characteristics: - median flame duration (max.) - eigth value (max.) - median volume retained - eighth value (min.) | SD SD percent percent | 2 3 15 12 | 2 3 18 15 | 2 3 22 19 | 2 3 30 27 | 2 3 40 37 | 2 3 50 47 | AS 2122.1 |
1 W/m.K - 6.93 Btu in ft²h. °F |
EPS for Construction
Expanded Polystyrene is the number one choice for your next construction job.
EPS for Concreting
Concrete formwork - Void formers can be manufactured to most shapes specified by designers for projects such as bridge beams, elevated motorways etc in which void forming is fundamental to modern design.
Drainage (storm water) - Koolfoam specialise in concrete formwork for storm water drainage
Secant pile walls - Polystyrene is a low cost, simple method of accurately forming guides for secant piled walls
Bolt sleeves - scuppers - Ideal for leaving a void for bolts in cast concrete - may be dissolved after use
Prestressed concrete - Polystyrene blocks are commonly used to reduce the amount of concrete poured
EPS for Pipe Insulation
If you’re after even more efficient pipe insulation, then our KoolfoamULTRA EPS is our cutting-edge product that offers even better thermal insulation than white EPS.
The graphite particles in expanded polystyrene (EPS) reflect and absorb heat and infra-red radiation result in up to 35% more efficient insulation than white EPS.
EPS for Pool Builders
Koolfoam polystyrene in the marine environment.
Buoyancy -
In the construction of marinas and many other marine applications the buoyancy of EPS can support more weight that alternative materials
eg a cubic metre of EPS with a density of only 16kg/m3 has a buoyancy of 984kg!
Empty enclosures can be punctured and lose buoyancy but a fill of EPS prevents sinking whilst EPS stays in place.
Installation is quick and easy requiring minimal labour and therefore expense; its non-irritant, non-allergenic and odourless nature makes it superior to other insulation alternatives.
Koolfoam EPS is light, water and steam resistant, unaffected by fungi and bacteria, and will not support insect or pest life.
Flotation - Used for buoyancy in the construction of boats of all sizes
Pontoons - A cost effective floatation material in the production of pontoons - easily formed and long lasting in a marine environment
Technical Information
KoolfoamULTRA a new way to insulate with polystyrene
- Resistance
- Biological
- Electrical
- Fire
- EUMEPS
Koolfoam EPS is comparatively inert and is unaffected by mildly acid or alkaline building materials such as Portland cement, lime or anhydrite. It is however soluble in many organic solvents and may be damaged by certain commonly-used paints, adhesives, wood preservatives, pasting agents etc. in some cases vapour from these substances can be harmful.
