Chema Geofoam
Chema Geofoam is a high-performance lightweight fill material manufactured from rigid expanded polystyrene (EPS). Engineered to deliver exceptional compressive strength at extremely low density, Chema Geofoam weighs as little as 1% of traditional soil or aggregate fill, making it ideal for reducing load on underlying structures and weak soil conditions. Produced in large block form and compliant with ASTM D6817, Chema Geofoam provides consistent quality, long-term stability, and outstanding ease of installation. It is widely used in roadways, embankments, retaining structures, landscaping, airport runways, and other applications requiring lightweight, high-strength fill.
Category Solution Systems
Chema Geofoam is a lightweight EPS fill block designed to reduce soil pressure and improve stability in construction projects. It meets ASTM D6817 standards and offers high compressive resistance with minimal weight, ensuring fast, efficient installation.
Properties
Anti Termite
Available in multiple density types to optimize structural performance and cost
Chemically resistant to most materials when properly isolated from solvents
Cost Effective
easy install
Extremely lightweight — approximately 1% of the weight of traditional soil fill
Fast Construction
Flexible in Design
High compressive
Manufactured according to ASTM D6817
Pressure force
Resistance to moisture
Saving materials
Thermally stable
Areas of Use
Bond walls
Bridges-01
Landscapes
Rail Embankment
Raising road levels-01
Key Features
• Ready-to-use: Delivered in block form for immediate placement.
• Fast installation with no curing time or wet materials.
• Can be cut, shaped, or prefabricated on site.
• Consistent quality with UL-monitored manufacturing.
• Improves construction efficiency and reduces project delays.
• Reduces load on adjacent structures and underground utilities.
• Highly buoyant — uplift forces must be properly managed.
Technical Data
| Geofoam Type | Density (Kg/m³) | Compressive Resistance @1% (kPa) | Elastic Modulus (kPa) | Flexural Strength (kPa) | Water Absorption (Vol.%) | Oxygen Index (Vol.%) |
|---|---|---|---|---|---|---|
| EPS10 | 10 | 69 | 1500 | 15 | 4.0 | 24 |
| EPS12 | 12 | 172 | 2500 | 25 | 4.0 | 24 |
| EPS15 | 15 | 207 | 4000 | 40 | 3.0 | 24 |
| EPS20 | 20 | 240 | 5000 | 50 | 3.0 | 24 |
| EPS25 | 25 | 345 | 7500 | 75 | 2.0 | 24 |
| EPS30 | 30 | 414 | 10300 | 103 | 2.0 | 24 |
| EPS35 | 35 | 517 | 12800 | 128 | 2.0 | 24 |
Additional performance:
• Buoyancy Force: Significant; requires ballast or restraint in water-exposed applications.
• Temperature Resistance: Max recommended exposure 165°F (74°C).
Standard Sizes
Width: 1.2 m (4 ft)
Length: 2.4 m (8 ft) up to 4.8 m (16 ft)
Thickness: 25 mm (1 in) to 914 mm (36 in)
Custom fabrication available upon request.
Environmental & Chemical Notes
• Geofoam does not swell or degrade when exposed to water or high humidity.
• Must be protected from solvents such as esters, ketones, ethers, and hydrocarbons.
• Should be tested for compatibility if used near unknown chemical materials.
Storage & Handling
• Short-term weather exposure is acceptable.
• Long-term exposure to sunlight causes surface yellowing, cover with opaque film or tarps.
• Must be ballasted to prevent displacement by wind or water during storage and installation.
Safety Precautions
• Geofoam is combustible; keep away from open flames and sparks.
• Avoid contact with aggressive chemical solvents.
• Use appropriate restraint systems in applications exposed to uplift forces.
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