GeoTech Systems Corporation home | about us | products | technical | site map

TerraLite™ Graphs

The following chart illustrates the range of densities and unit prices for TerraFlex™ compared to other competing materials commonly used as light weight fills:

Minimum cost and density of light weight fills.

The real measure of TerraFlex™ EPS Geofoam as a cost effective light weight fill is best illustrated by the following graph, where TerraFlex™ is shown to be at least 5 times more cost effective as a light weight fill than any other material! Is it any wonder that EPS Geofoam has been the light weight fill of choice for highway engineers in all of Europe and Japan for the last 15 years?
Light Weight Fills cost-Effectiveness Compared.

Properties

Physical Properties of TerraLite EPS Geofoam
TYPE - ASTM D6817 EPS12 EPS15 EPS19 EPS22 EPS29
Density, min., kg/m 3, ( lb/ft3 ) 11.2
(0.70)
14.4
(0.90)
18.4
(1.15)
21.6
(1.35)
28.8
(1.80)
Compressive Resistance
@ 1% deformation, min., kPa (psi)
15
(2.2)
25
(3.6)
40
(5.8)
50
(7.3)
75
(10.9)
Flexural Strength min., kPa (psi) 69
(10.0)
172
(25.0)
207
(30.0)
276
(40.0)
345
(50.0)
Water Absorption by total
immersion, max., volume %
4.0 4.0 3.0 3.0 2.0
Oxygen Index, min.,
volume %
24.0 24.0 24.0 24.0 24.0
Buoyancy Force (kg/m3)
(lb/ft3)
952
(59.4)
955
(59.6)
958
(59.8)
961
(60.0)
969
(60.5)


The following table shows type XI TerraLite™ (the softest geofoam). Other Densities will be posted as the data becomes available.

Most Geofoam applications do not intentionally load the material past 1% strain, commonly believed to be the elastic strain limit.

Stress v Strain EPS Analysis.

EPS Sound Absorption Data.
home | about us | products | technical | site map

GeoTech Systems Corporation.

GeoTech Systems Corporation
PO Box 1045
Great Falls, VA 22066
(v)
(f)
(e)
703 759 0300
703 757 0119
info@geosyscorp.com


Last Modified: January 7, 2005