KASI.CZ

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MANUALLY AFTER FINISHER

The best type of frame, not connected to the shaft, use in heavy 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 used, the rings can also be connected with grout

10. Impregnation

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

11. Installation of formwork

  • The formwork is attached to the carrier
  • The formwork on the carrier is placed into the prepared hole to ensure the correct height and directionality

12. Base asphalt layer

  • Warm asphalt concrete required
  • Clean the hatch surface

13. Compacting

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

14. Remove the carrier

  • If the base layer is tightened, the carrier is removed and the formwork holds the height by itself
  • Opens access across the entire surface

15. 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

16. Top layer

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

17. Compaction

  • Into the plane with the surrounding road
  • Lubricate the plate so that the asphalt does not stick

18. Remove formwork

  • Re-connect the carrier with the formwork
  • Extrude the formwork out of a very well-compacted surface

19. Hole

  • Prepare the hatch, impregnation, but watch out, it must not be frozen
  • Clean the hole

20. Set-up of the set

  • Insert the self-levelling frame exactly into the prepared hole
  • Add a slight stomp if required

21. Push the frame in

  • The self-levelling frame must be pressed into the warm packing
  • Use a heavy plate or roller vibrations

Resulting work

  • Perform a flatness check
  • Remove residual dirt
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