Extruded-Sidewall Concrete Faced Rockfill Dam (CFRD)¶
Sand Dams & Civil Works • Est. CapEx: $900,000 USD • Lifespan: 20 Years (Standardized)
Technical Overview¶
A construction-method innovation for concrete faced rockfill dams that replaces traditional cushion over-filling, slope leveling, and sand blasting with an extruded rapid-setting sidewall. It streamlines the upstream face preparation before concrete slab placement.
Key Specifications & Engineering Parameters¶
| Parameter | Specification |
|---|---|
| Category | Sand Dams & Civil Works |
| Capital Cost (CapEx) | $900,000 USD |
| Power / Energy | Electric / Motorized |
| Target Scale | Community Scale |
| Standard Lifespan | 20 Years (Standardized) |
| Technology Maturity | Field Tested |
| Primary Mechanism | A rapid-setting, low elastic modulus material is extruded in thin layers along the upstream dam axis to build the sidewall. This semi-elastic layer sits between the rockfill embankment and the concrete face slab, absorbing differential settlement and eliminating the need to trim over-placed cushion material to a precise slope. |
Cross-Reference & Interactive Tools¶
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