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EPS Geofoam, manufactured from expanded polystyrene (EPS), has been used as a geotechnical material in the construction industry since the 1960s. It offers a unique combination of low weight, strength, and versatility. EPS geofoam is much lighter than traditional fill materials such as soil, gravel and concrete. This lightness of EPS geofoam, when used as a fill material, translates into reduced loads on underlying soils and structures, and minimizes the risk of settlement or shifting. This property is particularly beneficial in areas with soft or unstable soils, where heavy materials could cause additional problems. Despite its low weight, it exhibits high compressive strength, which allows it to support substantial loads without significant deformation.

EPS geofoam is not a general soil fill replacement material but is intended to solve engineering challenges. The use of EPS geofoam typically translates into benefits to construction schedules and lowers the overall cost of construction because it is easy to handle during construction, often without the need for special equipment, and is unaffected by occurring weather conditions. In addition, EPS geofoam can be easily cut and shaped on a project site, which further reduces jobsite challenges. EPS geofoam is available in numerous material types that can be chosen by the designer for a specific application. Its service life is comparable to other construction materials and it will retain its physical properties under engineered conditions of use.

EPS geofoam is considered as an eco-friendly and sustainable option, as it is durable, has a long lifespan, and can be recycled. The production process of the material also has a lower environmental impact compared to traditional building materials. Additionally, the insulation properties of geofoam contribute to energy efficiency in buildings, aligning with the global push toward greener construction practices. By eliminating the need for large-scale soil excavation, geofoam use can reduce construction waste and minimize disruption to the local environment. Its inert nature will not leach toxic chemicals into the surrounding ground or groundwater. Moreover, the material is highly resistant to water absorption and degradation, ensuring its long-term performance in both dry and wet conditions.

EPS geofoam is inherently multi-functional, which makes it effective to use in a wide variety of applications. It offers special advantages for construction on soft ground, slope stabilization and retaining walls. EPS geofoam has been used in road and airfield pavements and railway track systems, beneath refrigerated storage buildings, sports arenas and storage tanks to prevent ground freezing and heaving and in below-ground building segments to reduce seasonal heating and cooling requirements. EPS geofoam enables engineers, architects, and builders to design for key geosynthetic functions and select the best combination of products to achieve project goals. With unprecedented strength and flexibility, EPS geofoam also offers innovative solutions to a range of problems, including protection from earthquake shock, and noise and vibration dampening.