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Structural Enhancement INTERNATIONAL AIRPORT 1 River tunnel underneath an international airport runway 2 One of the three tunnels after diverting the river flow and dewatering 3 Damaged slab panel. Exposed reinforcement 4 Cover portion of the beam exposed due to reinforcement corrosion 5 Grouting of beam in progress 6 Carbon fibre role on a wet lay machine 7 Strengthening of beam in flexure 8 Strengthening of beam and slab in shear Issue The runway bridge was designed for smaller aircrafts. Its capacity was to be enhanced to meet the new requirements. Challenge The job was to be completed within 45 days Solution Externally reinforced the structural elements using carbon laminates and carbon fibre Source:

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