Geofoam is a geo-technical fill material used as an alternative to other fill materials, as a soil stabilizer, and in many other engineered applications. Due to its ultra-light weight, Geofoam is cost effective and usually does not require surcharging, preloading, and staging that's often necessary with other materials. With outstanding stability, EPS Geofoam resists decomposition, moisture and many adverse conditions, including freeze-thaw cycles, while providing excellent compressive strength over very long service periods.
Geofoam is 50 - 100 times lighter than soils and fast to install even in the rain. Geofoam blocks arrive at the jobsite ready to place, factory-cut to size per approved drawings. If additional fitting at the site is required, it is easily accomplished using portable hot wire cutters. The standard full-size blocks are 48½" x 48½" x 194" (1.23m x 1.23m x 4.92m).
Under Highways, Bridge Abutments, Bridge Underfill, Fill for Landscaping & Green Roofs, Roads over Poor Soils, Retaining Wall Backfill, Slope Stabilization, Frost-protected Shallow Foundations, Greenhouse Foundations, Culverts, Pipelines, Rail Embankment, Stadium Seating, Levees, Airport Taxiways & more
EPS is a closed cell, rigid foam that uses Air as main ingredient.
Expanded polystyrene (EPS) is resistant to mold & fungi per ASTM C1338 and has no nutritional value for insects. To protect against termites place adequate physical barriers such as membranes around below-grade EPS.
Limiting Oxygen Index: min. 24% per ASTM D2863. Airfoam's EPS for construction applications contains a polymeric (non-HBCD) flame-retardant modifier.
Max. service temperature: Long-Term Exposure 75°C [167°F]; Intermittent Exposure 80°C [176°F]
Thermal expansion coefficient: 5-7 •
Capillarity: None; Buoyancy-Force: min. 900 kg/m³ [56 lbs/ft³]
Solubility: Insoluble in water and in general chemically inert. EPS dissolves in hydrocarbons (e.g. fuels, oils, tar), organic solvents (e.g. acetone/ketones, benzene, paint thinner), ethers, esters, aldehydes and amines.
Load Distribution: Poisson's ratio ≈0.12 within the elastic range; Coefficient of Friction: ≈0.5 along molded, clean faces
UV-light surface degradation: white EPS can be exposed to direct sunlight for a few weeks. Prolonged exposure to ultraviolet light creates a yellow dust on the surface of EPS products, which has negligible impact on the products' properties but may require removal before adhering other materials such as stucco or self-adhesive membranes.
GHS Classification: Non-Hazardous, see SDS
CAUTION: EPS products are combustible and must not be exposed to excessive heat, sparks, open flames, or any other sources of ignition. If stored/used in closed containers, confined, or low-lying areas, ensure adequate ventilation to prevent accumulation of flammable pentane vapours. Prevent inhalation of smoke, fumes or dust from burning or fabrication activities.