EPS structural fill for embankments, bridge abutments and services trenches — 1% the weight of soil.
Kit complete
Technopol Geofoam is engineered ultra-lightweight EPS fill (geofoam), supplied as large closed-cell moulded blocks that are field-cut and placed dry without compaction; grade-dependent properties span the EPS12–EPS30 ladder to ASTM D6817 / D7180.
| Property | Value | Standard |
|---|---|---|
| Product / build-up | Engineered ultra-lightweight EPS block fill (geofoam)large closed-cell moulded blocks, field-cut, placed dry without compaction (~1% the weight of soil) | — |
| Density (grade span) | 12–30 kg/m³ | — |
| Thermal conductivity (λ) @10 °C | 0.033–0.045 W/m·K | — |
| Design load limit — compressive resistance @1% strain | 15–100 kPa | — |
| Compressive strength @10% strain | 60–200 kPa | — |
| Water absorption | < 4 % | — |
| Reaction-to-fire class (FR grade) | Class B-s1,d0 | SANS 53501-1 |
| Fire-resistance rating (REI) | None — reaction-to-fire classification only; EPS is combustible | — |
| Typical block size | 2550 × 1250 × 960 (typical; other sizes cut to order) mm | — |
| Applicable standards | ASTM D6817 (physical properties), ASTM D7180 (geotechnical design), ASTM D7557 (sampling) | ASTM D6817 / D7180 / D7557 |
Grade-dependent: density, λ and compressive values span the manufactured grade ladder (Technopol supplies EPS12/SD through EHD/EPS30). Per-grade @1% safe-working loads are 15/17/45/70/100 kPa for EPS12/15/20/24/30. Design sustained stress must stay ≤ the compressive resistance @1% strain (elastic limit); do not design to the @5%/@10% values (creep). The @10% figures are the failure-region strength, not a design load. Fire scope: Class B-s1,d0 applies to FR (flame-retardant) EPS and was established on a 60 mm sheet at ~18.4 kg/m³ (Ignis Test Lab, Cape Town; SANS 53501-1 report 17.08.2023, authorised DJ Streicher Pr Eng). It is not formally extended to every geofoam grade/thickness; standard (non-FR) geofoam is combustible and must be covered by slab, pavement or soil in the permanent works. λ range is the Technopol per-grade datasheet (0.033–0.045 W/m·K, @10 °C); the brochure summary quotes 0.030–0.038 W/m·K. Insulation is incidental — no R/U value per thickness is published for geofoam.
Values from Technopol technical documentation. Confirm the exact figures for your specification with Technopol.
| Property | Value | Standard |
|---|---|---|
| Density (grade span) | 12–30 kg/m³ | ASTM D6817 |
| Thermal conductivity λ @10°C | 0.033–0.045 W/m·K | |
| Compressive resistance @1% strain (design limit) | 15–100 kPa | ASTM D7180 |
| Compressive strength @10% strain | 60–200 kPa | ASTM D6817 |
Every test report and certificate behind these figures is on the test-report register.
The same product does a different job in each of these assemblies - each page states the target, the clause and the limits.
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