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Manhole Frame Replacement

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How to bed, repair and replace manhole frames

ironwork reinstatement methodology

Install new, replace damaged or re-bed existing ironwork (including manholes) & repair damaged surrounding surfaces.

Typical damage to road surfaces where manhole bedding has failed

METHOD

  • Make a rectangular saw cut in the road surface approximately 200mm from the frame edge. Remove the frame and all damaged tarmac, concrete and bedding mortar.
  • Make good the seating and bed the frame with fast setting repair mortar. Allow the bedding mortar to set then fill up to within 50mm of the traffic surface with fast setting repair concrete and allow to harden.
  • Spray prime all vertical surfaces and apply replacement tarmac to excess.
  • Compact the replacement tarmac back to the traffic surface level and reopen to traffic.

DIAGRAM: Failing / damaged manhole or ironwork surround
Damaged manhole frame surround

DIAGRAM: New manhole bedding or ironwork reinstatement solution
Rebedded frame with replacement concrete and resurfacing

Manhole frame cover
Collapsed bedding mortar and seating
Replacement bedding mortar and concrete
Replacement traffic surface


MATERIALS

Fast set mortar type:

Ultracrete M90

Ultracrete PY4/PY5

Fast set concrete type:

Ultracrete QC10

Replacement tarmac:

Ultracrete IRR

Click on product name for data and full application instructions.

SEE ALSO:

VIDEO: HAPAS Approved Manhole Reinstatement System

SECTOR: Highways for more manhole bedding and ironwork reinstatement products

Back to list of repair methods

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