Bridge deck waterproofing protects the concrete structure from water ingress, chloride attack, and reinforcement corrosion. Application involves heating bituminous materials and working with volatile solvents on exposed bridge decks at height. Fume inhalation, burns from hot materials, and slips on freshly coated surfaces are key risks. This talk covers the safety controls for bridge deck waterproofing operations.
Key Hazards
Burns from contact with hot bituminous waterproofing materials
Fume inhalation from heated bitumen and volatile primer solvents
Slips and falls on freshly applied or wet waterproofing surfaces
Fire from ignition of primer solvents or overheated bituminous materials
Control Measures
Ensure adequate ventilation or forced-air extraction when applying solvent-based primers.
Wear heat-resistant gloves, safety boots, and full-length clothing when handling hot materials.
Provide RPE suitable for organic vapours during primer application in enclosed or calm conditions.
Keep fire extinguishers readily available at the application area throughout the works.
Apply non-slip aggregate or sheeting to freshly coated areas where operatives must walk.
Obtain a hot works permit for all torch-applied membrane systems on the bridge deck.
Brief all operatives on the COSHH assessment for each waterproofing product before application.
Store solvent and bitumen containers away from heat sources and ignition points.
Ensure edge protection is in place on all exposed bridge deck edges during the application.
Remember
Wear heat-resistant gloves and full-length clothing when handling hot bituminous materials
Use RPE for organic vapours during solvent-based primer application in calm conditions
Keep fire extinguishers available and obtain a hot works permit for torch-applied membranes
Apply non-slip treatment to freshly coated surfaces where workers must walk
Ensure edge protection is in place on all exposed bridge deck edges during works
Applicable Legislation: COSHH 2002 · Work at Height Regulations 2005 · Regulatory Reform (Fire Safety) Order 2005 · CDM 2015