KASI.CZ

Největší český výrobce kanalizační litiny

MANUALLY AFTER FINISHER

Use at low shaft heights or light traffic loads

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. Hatch height mounting

  • According to the slats to the absolute plane 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

  • After curing remove the inflatable formwork
  • Smooth inner sharp edges created by leaks

13. Removal of formwork

  • Tighten the bedding very well so that the formwork holds even without the carrier
  • Use a hammer with a flat attachment

14. Impregnation

  • Apply onto the entire area below the asphalt
  • It’s faster to use a spray bottle

15. Base asphalt layer

  • Better warm asphalt concrete with more aggregate
  • Clean the hatch surface

16. Compacting

  • Tighten the substrate very well
  • Use a hammer with a flat attachment

17. Fusible asphalt tape

  • Thorough treatment of new joints
  • Both the connection of the road and the new asphalt and the frame with the new surface

18. Top layer

  • If the situation permits, use materials for the top layers of the roads
  • Clean the surroundings and the hatch again

19. 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
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