The aim of the composite repair was to restore the integrity of the discharge bend having severe mechanical damage leading to through-wall scenario, the defect measured was 400mm X 10mm. This repair was engineered to ISO 24817:2015(E) standard.  

 

Scope:     

• Composite Repair to reinstate integrity of 48” Discharge Bend.     

• Required repair design pressure 6 bar.     

• Required repair design temperature 60°C.     

• The thickness required for restoring the integrity was engineered in accordance with       

       ISO 24817:2015(E), 9 layers of PCR-GX.  

 

Challenges:     

• Repair reinforcement by PCR-GX, 9 layers had to be done in a single day to achieve client strict    deadline.       

• Precise compression was achieved never the less the complexity of the bend.

 

Actions:     

• Surface preparation was done to Swedish standard Sa 2.5.     

• PCR Metal putty was used to profile the defect and make it in line with the surface.     

• PCR epoxy adhesive primer was applied on the bend to enhance the adhesion between the    substrate and PCR-GX layers.     

• Application of 9 layers PCR-GX using hand layup.

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