Underwater Concrete Moulding, Formwork and Repairs
nderwater concrete moulding: Placement of concrete underwater for foundations, structural elements, scour protection and repair works.
Formwork: Installation of temporary or permanent moulds/formwork underwater to contain and shape concrete accurately.
Surface preparation: Remove marine growth, loose concrete, corrosion products and debris before repair.
Concrete repairs: Repair cracks, spalling, voids, damaged piles, foundations, walls and other submerged structures.
Reinforcement repairs: Clean, inspect and, where required, replace or supplement corroded reinforcement.
Concrete placement: Use suitable underwater techniques such as tremie pipes, pumps, grout injection or pre-packed aggregate systems to minimise cement washout and segregation.
Quality control: Check alignment, dimensions, concrete consistency, bonding and curing, while monitoring underwater conditions.
Diver operations: Divers inspect, prepare, install formwork and guide concrete-placement equipment under controlled procedures.
Final inspection: Verify the repaired structure for strength, integrity, watertightness and compliance with the required specifications.