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Geofoam Data Sheet

TYPICAL PHYSICAL PROPERTIES OF EPS GEOFOAM

Explanation of Geofoam

EPS Geofoam is a cellular plastic material that is strong, but has very low density (1% of traditional earth materials.) It is manufactured in block form and meets ASTM D6817, "Standard Specification for Rigid, Cellular Polystyrene Geofoam." EPS Geofoam is available in a range of densities to provide control of structural integrity and cost effectiveness. The information given below is deemed to be timely, accurate, and reliable for the use of EPS Geofoam. Each project using EPS Geofoam should be designed by a professional engineer. The engineer of project specifications should be consulted to determine the ASTM D6817 Type required for your project loading conditions.

EPS Geofoam Properties
Property Units Specification reference: ASTM D6817
EPS12
Type XI
EPS15
Type I
EPS19
Type VIII
EPS22
Type II
EPS29
Type IX
EPS39
Type XIV
EPS46
Density (Minimum) lb/ft3 0.70 0.90 1.15 1.35 1.80 2.40 2.85
(kg/m3 (11.2) (14.4) (18.4)0 (21.6) (28.8) (38.4) 45.7
Compression Resistance
@ 10% deformation, min.
psi 5.8 10.2 16.0 19.6 29.0 40.0 50.0
psf 840 1,470 2,300 2,820 4,180 5,760 7,200
(kPa) (40) (70) (110) (135) (200) (276) (345)
Compression Resistance
@ 5% deformation, min.
psi 5.1 8.0 13.1 16.7 24.7 35.0 43.5
psf 730 1,150 1,890 2,400 3,560 5,040 6,260
(kPa) (35) (55) (90) (115) (170) (241) (300)
Compression Resistance
@ 1% deformation, min.
psi 2.2 3.6 5.8 7.3 10.9 15 18.6
psf 320 520 840 1,050 1,570 2,160 2,680
(kPa) (15) (25) (40) (50) (75) (103) (128)
Elasstic Modulus, min. psi 220 360 580 730 1,090 1,500 1,860
(kPa) (1,500) (2,500) (4,000) (5,000) (7,500) (10,300) (12,800)
Flexural Strength, min. psi 10.0 25.0 30.0 40.0 50.0 60.0 75.0
(kPa) (69) (172) (207) (276) (345) (414) (517)
Water Absorption by
total immersion, max.
volume % 4.0 4.0 3.0 3.0 2.0 2.0 2.0
Oxygen Index, min. volume % 24.0 24.0 24.0 24.0 24.0 24.0 24.0
Bouyancy Force lb/ft3 61.7 61.5 61.3 61.1 60.6 60.0 59.5
(kg/m3) (990) (980) (980) (980) (970) (960) (950)