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Polystyrene blocks for embankments and road work

LegerLite GEO expanded polystyrene blocks are available in various densities and can be used for both embankment construction and road insulation.

GEO blocks are lightweight and available in many sizes to suit different types of applications and budgets. The high resistance of polystyrene (Styrofoam) blocks to temperature changes make them the ideal product for both road insulation and embankment construction. This is why GEO blocks are increasingly being used in civil engineering projects and landscaping.

You can benefit from LegerLite’s 30 years of experience to optimize the use of GEO products in your projects and meet your schedule and your needs.

Due to its effectiveness and unique manufacturing process, Quebec’s transport ministry has chosen LegerLite products for its embankment and road insulation projects. LegerLite is now an integral part of a wide variety of projects and can enable you to obtain LEED credits.

PHYSICAL PROPERTIES /en/products/embankments/geo15 /en/products/embankments/geo20 /en/products/embankments/geo30 /en/products/embankments/geo40 /en/products/embankments/geo60
Thermal resistance: r-value at 75ºF (24ºc) for 1 in (25 mm) thickness 0.74 m2 .°C/w/25mm (4.2 h.ft2 .°F/Btu/in) 0,74 m2 .°C/w/25mm (4.2 h.ft2 .°F/Btu/in) 0.75 m2 .°C/w/25mm (4.25 h.ft2 .°F/Btu/in) 0.76 m2 .°C/w/25mm (4.3 h.ft2 .°F/Btu/in) 0.76 m2.°C/w/25mm (4.3 h.ft2.°F/Btu/in)
Compressive strength (min.) at 10% distortion 110 kpa (16 lbs/in2 ) 140 kPa (20.3 lb/in2 ) 210 kPa (30 lb/in2 ) 275 kPa (40 lb/in2 ) 414 kPa (60 lb/in2)
Bending strength (min.) 240 kPa (35 lb/in2 ) 276 kPa (40 lb/in2 ) 300 kPa (44 lb/in2 ) 414 kPa (60 lb/in2 ) 517 kPa (75 lb/in2)
Dimensional stability: % of linear change (max.) 0.50% 0.50% 0.50% 0.50% 1.5%
Water vapor permeability (max.)
200 ng/Pa.s.m2 (2.8 perm)
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160 ng/Pa.s.m2 (2.8 perm)
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130 ng/Pa.s.m2 (2.3 perm)
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130 ng/Pa.s.m2 (2.3 perm)
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130 ng/Pa.s.m2 (2.3 perm)
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Water absorption (max.) 4% 3 % 2 % 2 % 2%
Coefficient of linear thermal expansion 6E-5mm/mm/°C 3.5 E-5in/in/°F 6E-5mm/mm/°C 3.5 E-5in/in/°F 6E-5mm/mm/°C 3.5 E-5in/in/°F 6E-5mm/mm/°C 3.5 E-5in/in/°F 6E-5mm/mm/°C 3.5 E-5in/in/°F
Usage temperature (max.) 75°C (167°F) 82°C (180°F) 75°C (167°F) 82°C (180°F) 75°C (167°F) 82°C (180°F) 75°C (167°F) 82?C (180°F) 75°C (167°F) 82°C (180°F)
Flame spread ‹ 140 ‹ 140 ‹ 140 ‹ 140 ‹ 140
Smoke development ‹ 380 ‹ 380 ‹ 325 ‹ 325 ‹ 325
Compressional modulus (min.) N/A N/A N/A 9 000 kPa (1 305 psi) 15 000 kPa (2 175 psi)
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