FREYSSINET SUPPLY CE MARKED BEARINGS FOR THE NEW WALTON BRIDGE 18 November 2014 - FreyssinetUK

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Support and applying rust protective chemical: If old bearing pedestal is to be rehabilitated, the broken surface shall be completely cleaned by wire brush to remove loose rust particles then exposed reinforcement shall be cleaned of all rust and millscale by mechanical wire brush, to elimination of oil or oily residues and also the loss of reinforcement will be compensated by connecting of new reinforcement.

The reinforcement's rust, if any, shall be removed by applying rust removal, chemical (Reebaklens RR of Fosroc or comparable product of BASF or Sika) and cleaning of reinforcement with a mechanical wire brush. After that applying one coat of zinc rich coating of Nitozinc Guide of Fosroc or comparable product of BASF or Sika).

Bridge 977 Bearings Replacement - Fortec Australia

Micro-concrete: Flowable mix of 1part by weight of Micro-concrete power, 1 part by weight of grit/Aggregate (as much as 10mm) and necessary water needed for workability. The mix shall be mixed thoroughly by mechanical stirred for about 3 mins. D. Applying: After supplying necessary water tight shuttering, the flowable mix should be poured and there is no need for compaction as it is flowable and self condensing mix.

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Curing: The curing of pedestal will be provided for at least 7 days. Maintenance of bridge bearings: 1. Surrounding of all bearings will be cleared of silt and particles. 2. In hydraulic pump station of POT-PTFE bearings, I have discovered sometimes that short-term clamp did not disconnect after setup of the bearing.

So after installation of POT-PTFE bearings, You require to take note of detach the temporary clamp. 3. In case of metal bearings, dirt, rust and deterioration prevail treatments due to weather impact. For Bearing rust removal and Cleaning/repainting: The following stepwise treatment is to be followed: A. The location around the bearings and their pedestals shall be cleared of all debris, greenery, dust, etc.

B. Fresh graphite grease as approved by the Engineer shall be used to the surfaces which are siding, turning or moving due to motion in bearings. C. All other surface areas of the metal bearing shall be cleaned up of all rusts, rust and a coat of anticorrosive oil paint used. Click the following links to read more: # Bridge Bearing Replacement Procedure, # Bridge Bearing Setup Treatment #Procedure For Upkeep And Rehabilitation Of Bridges, #Bridge Fixing, #Bridge Rehabilitation, #Bridge Maintenance, #Bridge Repairing and Rehab, #Bridge Strengthening,, #Road and Bridge Design.