VELOSIT® SR 207
Sulphate Resistant High Build Structural Grade Concrete Repair Mortar R4
VELOSIT SR 207 is a Sulphate-resistant, structural grade cementitious repair mortar for concrete restoration acc. to EN 1504-9. It is used to fill large voids or build up larger cross-sections up to 100 mm (4”) specifically designed for repairs in sewage and waste water structures.
Typical applications:
- Repair of large surface defects on in concrete manholes, primary & secondary sewage treatment basins and waste water treatment plants
- Overlays and repairs on concrete structures like dams, bridges, beams, balconies, facades
- Application Suitable on horizontal, and vertical incl. overhead applications
- Application thickness from 6 mm (¼“) to 100 mm (4”)
- Used as micro-concrete
Properties:
- Minimal shrinkage/expansion under dry resp. wet curing conditions minimizing the risk of micro-cracking
- Excellent workability
- Wide range of water addition to meet different workability requirements
- Fiber reinforced with grain sizes reaching 4 mm
- Hydrophobic
- Advanced corrosion inhibitor technology
- 30 min. working time and 12 MPa (1740 psi) compressive strength after 4 hours
- Final strength exceeds 45 MPa (6525 psi) after at 28 days
- Open to foot traffic after 3-4 hours
- Excellent adhesion to properly prepared concrete
- Good resistance against CO2 and Chloride penetration due to a very tight pore structure
- Good resistance against aggressive media with a pH range of 3-12 and against soft water with low ion content
- Good weathering resistance
- Good sulfate sulphate resistance
- Light gray grey color close to that of concrete
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Technical Data Sheet Environmental Product Declaration - EPD Safety Data Sheet Technical Drawing Sewage tank Technical Drawing Manhole repair and waterproofing Technical Drawing Manhole repair and lining Technical Drawing Biogas tank lining Prospect Sewage Construction