Největší český výrobce kanalizační litiny
MANUALLY AFTER FINISHER
Use in case of damaged shaft top or extreme traffic load
Product for replacement
1. Cut-out marking
- Size according to the road flatness
- Preferably a circular cut-out ideally 300 mm from the frame edge
2. Road cutting
- Top perpendicular at least 60 mm
- Preferably using a mill with a perpendicular wall through the entire cut-out
3. Demolition around the existing frame
- Leave the lid in place as long as possible
- It is important not to damage other surfaces
4. Removing the hatch
- Protect the shaft from falling debris
- Do not damage the top of the shaft
5. Cleaning the hole
- Remove all loose parts
- Wash out the dirt
6. Calculation of the composition
- Always better to have fewer balancing rings
- Expect 10-20 mm of high-strength material per connection point
7. Mortar bed
- Always a material designed to fit a hatch with chemical resistance
- Can also be fit to the top using formwork
8. Fitting of rings
- Moisten the concrete rings
- The connecting surface must be supported in its entirety
9. Grout
- Always with high-strength and resistance to chemical defrosting agents
- If formwork is being used, the rings can also be connected with grout
10. Height fitting of the hatch
- According to the slats, in perfect alignment, and the seating surface as well as the rings
- For hinged hatches, pay attention to the directionality of the hatch
11. Grout
- Again, a high-strength, chemical defrosting compound
- After a very short time, the rapidly solidifying mass is ready for further processing
12. Formwork and grout
- Pro tento typ rámu není nutné bednění
- Velká úspora zálivkových hmot
13. Impregnation
- Apply onto the entire area below the asphalt
- It’s faster to use a spray bottle
14. Base and top asphalt layer, fusible strip
- For this type of frame, these three steps can be done in one go
- Clean the hatch surface
15. Compaction
- Into the plane with the surrounding road
- Lubricate the plate so that the asphalt does not stick
Resulting work
- Perform a flatness check
- Remove residual dirt