Geofoam is a lightweight, geosynthetic fill material used as an alternative to various fill materials, as a soil stabilizer and in various engineered applications. Geofoam consists of closed-cell expanded polystyrene (EPS) and meets or exceeds the requirements of ASTM D6817 Standard Specification for Rigid Cellular Polystyrene Geofoam. Thanks to a weight that is lighter than most fill materials, Geofoam is cost-effective and does not typically require surcharging, preloading, and staging that is often necessary in construction applications. Geofoam is environmentally friendly and 100% recyclable, containing no HCFCs or formaldehyde. With superior stability and long-term R-Value, Geofoam resists insects, mold, decomposition, and severe weather conditions, including freeze-thaw cycles and moisture. Geofoam applications include: transportation infrastructure, such as highways, roads, railways, retaining walls, ramps, structural/architectural retaining walls, landscaping, pools, foundations, and several more.