Features
Receives finishes after 1.5 hours regardless of thickness Slump-free—ideal for vertical and horizontal repairs Ideal for the rapid repair of internal concrete, screeds, renders, and concrete steps Other applications include forming ramps, falls and coves, patching around fittings/pipework, and filling cracks and gaps
Substrate Preparation
R-61F can be applied to dry or moist screeds, provided they are set and hardened and the surface is sound and free of dust, grease, oil, and other surface contamination. Worn or trafficked surfaces should be abraded (wire brush, angle grinder, etc.) to remove contamination and expose a clean surface to ensure good adhesion. Very dense, smooth, impervious surfaces should be primed with CLI N 18 Primer. Priming is not usually necessary on concrete, cement/sand, brickwork, etc., unless the surface is extremely porous. Direct-to-earth sub-floors must have an effective damp-proof membrane.
Physical Properties
| # | Characteristic | Value |
|---|---|---|
| 1 | Bulk density of powder | approx. 1.4 kg/liter |
| 2 | Weight of fresh mortar | approx. 1.9 kg/liter |
| 3 | Initial set (Vicat) DIN 1164 | approx. 15 minutes |
| 4 | Final set (Vicat) DIN 1164 | approx. 60 minutes |
Compressive Strength
| # | Characteristic | Value |
|---|---|---|
| 1 | After 1 day | 15.0 N/mm² |
| 2 | After 7 days | 30.0 N/mm² |
| 3 | After 28 days | 40.0 N/mm² |
Flexural Strength
| # | Characteristic | Value |
|---|---|---|
| 1 | After 1 day | 3.5N/mm² |
| 2 | After 7 days | 4.5 N/mm² |
| 3 | After 28 days | 7N/mm² |
