10 Simple Techniques For Bridge Bearings - an overview - ScienceDirect Topics

Support and using corrosion protective chemical: If old bearing pedestal is to be rehabilitated, the chipped surface will be thoroughly cleaned by wire brush to eliminate loose rust particles then exposed support shall be cleaned up of all rust and millscale by mechanical wire brush, to removal of oil or greasy residues and likewise the loss of support shall be compensated by connecting of brand-new support.

The support's rust, if any, will be eliminated by using rust removal, chemical (Reebaklens RR of Fosroc or equivalent product of BASF or Sika) and cleansing of reinforcement with a mechanical wire brush. After that using one coat of zinc abundant covering of Nitozinc Guide of Fosroc or equivalent product of BASF or Sika).

Micro-concrete: Flowable mix of 1part by weight of Micro-concrete power, 1 part by weight of grit/Aggregate (up to 10mm) and essential water needed for workability. The mix will be combined completely by mechanical stirred for about 3 mins. D. Applying: After supplying RIVERLAKE shuttering, the flowable mix must be poured and there is no need for compaction as it is flowable and self compacting mix.

Treating: The treating of pedestal shall be provided for at least 7 days. Maintenance of bridge bearings: 1. Surrounding of all bearings shall be cleared of silt and debris. 2. In case of POT-PTFE bearings, I have noticed sometimes that temporary clamp did not detach after installation of the bearing.

So after installation of POT-PTFE bearings, You need to take notice of detach the short-lived clamp. 3. In case of metal bearings, dirt, rust and rust prevail remedies due to weather affect. For Bearing rust elimination and Cleaning/repainting: The following stepwise treatment is to be followed: A. The area around the bearings and their pedestals shall be cleared of all debris, vegetation, dust, and so on.

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