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EXPOL GeoFoam

Expanded Polystyrene (EPS) foam is used extensively for lightweight fill in problematic situations such as expansive soils and soft substrates. EXPOL GeoFoam is supplied in a range of densities and sizes to suit the engineering design.

Choosing the correct density of EXPOL GeoFoam will depend on the compressive loads applied during its service life. All blocks can be cut to suit different project specifications, including angles and 2 dimensional profiles.

  • EXPOL GeoFoam
  • Advantages
  • Applications
  • Chemical Resistance
GeoFoam is a lightweight material, manufactured from EPS beads and moulded into blocks. Used on construction sites, roads, bridges, and other areas where soft substrates occur over a building site requiring lightweight fill.

GEOFOAM

Advantages

  • Lightweight
  • High compressive strength
  • Cost effective
  • Durable
  • Weighs 1% of conventional fill
  • Eliminates lateral pressure and vertical movement
  • All clean waste can be recovered for recycling

Applications

  • Construction
  • Road embankments
  • Bridge abutments
  • Causeways
  • Retaining wall fill
  • Replacement of poor soils
  • Landscaping
  • Geotechnical fill
  • Frost heave protection
  • Sites with limited access

Chemical resistance

EPS block is resistant to soaps and inorganic substances
such as dilute acids, alkalis and salt solutions.

It is attacked by organic solvent, including hydrocarbon fuels
and lubricants.


Product Resources

Technical Guide
Technical Guide

 


PRODUCT OPTIONS & SIZES Length (mm) Width (mm) Thickness (mm)
EXPOL GeoFoam
(SL, S, M, H, VH)
3650 1230 630
5080 1220 620
5080 1220 1020*
Any size can be cut from these blocks
* Available from Wellington branch ONLY

Property Unit EXPOL
GeoFoam SL
  EXPOL
GeoFoam S
  EXPOL
GeoFoam M
  EXPOL
GeoFoam H
  EXPOL
GeoFoam VH
Test Reference
Material   EPS   EPS   EPS   EPS   EPS  
Density kg/m3 12   16   20   24   28  
Compressive strength at 10% deformation (min) KPA 70   85   105   135   165 AS 2498.3
Cross breaking strength KPA 135   165   200   260   320 AS 2498.4
Determination of flame propagation
surface ignition
Medium flame duration (max)
sec 2   2   2   2   2 AS2122.1-1993
Eighth value sec 3   3   3   3   3  
Fire behaviour 
- Spread of Flame Index
(0-10) 0   0   0   0   0 AS/NZS
- Smoke Developed Index (0-10) 5   5   5   5   5 1530.3:1999
Dimensional stability of length,
width & thickness (max) at 70 deg C
for 7 days
% 1   1   1   1   1 AS2498.6
Rate of water vapour transmission (max) measured parallel to rise at 23°C mg/m2s 630   520   520   460   400 AS 2498.5

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