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Cement
Polymer Composite Coating System for Reinforcement
C.E.C.R.I
Karaikudi Method
CPCC System consists of a Primer Coat and a Sealer Coat
Advantages:
Simple to apply and the coated bars can be cut & bent. Cost effective.
Surface
Preparation:
The Steel bars shall be cleaned by sandblasting to the near white
metal.
Application
of Coating:
The primer coat shall be applied to the cleaned surface as soon as
possible after cleaning (as above) and before 4 hours, either by brushing
or dipping. Apply Sealer Coat after 30 minutes of application of Primer
Coat. Air Cure for minimum 6 hours before the coated bars are put
to use.
Stacking:
Keep the Coated bars in the yard on buffer material placed at suitable
intervals. Do not keep the coated bars one over the other or directly
on the ground.
Safety:
Closed sandblasting unit shall be used.
Face masks, hand gloves & gum shoes shall be used.
Handling
& Transportation:
Coated bars shall be securely bound with adequate buffer material
& bent bars shall be supplied with canvas cover. While unloading
proper support shall be provided with nylon strings in between.
Patch
repairing:
Damaged areas shall be cleaned thoroughly, mechanically and apply
Primer Coat (as applied at beginning).
Cutting/
Bending/ Welding:
Bend coated bars gradually. Cut ends shall be coated with Primer &
Sealer Coat. Binding wires shall also be coated with the same formulation.
Solvent:
CF: Sol-CP is to be used as solvent for primer and seal coat.
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