ROA/Surfacing/TBT-ROA-002

Asphalt Laying Safety

Road Construction & SurfacingSurfacingAsphalt Laying Safety

Asphalt Laying Safety

Toolbox Talk Record

Ref: TBT-ROA-002  |  Issue: 1  |  Date: March 2026
PresenterProject
LocationDate

What?

  • Asphalt laying involves spreading, levelling, and compacting hot bituminous material to create road and pavement surfaces.
  • Hot mix asphalt is delivered to site at temperatures between 140°C and 180°C — contact causes instant, severe burns.
  • Bitumen fumes from hot asphalt are classified as a potential carcinogen — exposure must be minimised at all times.
  • The paving machine operator must have clear visibility and communication with the laying gang walking behind the paver.
  • Roller operators compact the asphalt immediately behind the laying gang — physical separation between gang and roller is critical.
  • Manual raking and levelling of hot asphalt exposes workers to heat, fumes, and sustained physically demanding postures.
  • Joints between new and existing surfaces must be properly cut and sealed — working near live traffic adds additional risk.
  • Night laying operations are common to minimise traffic disruption, introducing fatigue and reduced visibility hazards.
  • Pre-coated chippings, tack coat, and bond coat materials require specific handling procedures and PPE.
  • Coordination between the paver, rollers, material delivery wagons, and the laying gang is essential for safe operation.

Why?

Severe burnsAsphalt at 160°C causes instant full-thickness burns — thermal gloves and waterproof clothing are the minimum protection.
Fume exposureBitumen fumes are a potential carcinogen — workers must position upwind and minimise inhalation exposure at all times.
Roller crushCompaction rollers operate directly behind the laying gang — clear separation and communication prevent fatal crush injuries.
Do Don't
  • Wear thermal-resistant gloves and waterproof boots when working with hot asphalt.
  • Position yourself upwind of hot asphalt to minimise fume inhalation during laying.
  • Maintain clear separation between the laying gang and compaction rollers at all times.
  • Use the paver's communication system to coordinate with the operator during laying.
  • Manage fatigue during night laying operations with proper rest breaks and rotation.
  • Wear RPE when fume exposure cannot be controlled by positioning alone.
  • Use traffic management when laying adjacent to live carriageways or public footpaths.
  • Handle tack coat and bond coat materials with the PPE specified in the COSHH assessment.
  • Drink water regularly to stay hydrated when working near hot asphalt in warm weather.
  • Brief the team on the laying sequence, roller positions, and communication signals daily.
  • DON'T handle hot asphalt without thermal gloves and waterproof protective clothing.
  • DON'T stand downwind of hot asphalt — bitumen fumes are a potential carcinogen.
  • DON'T allow rollers to operate without clear separation from the laying gang.
  • DON'T work behind the paver without communication with the operator established.
  • DON'T work excessive hours during night laying without following fatigue management rules.
  • DON'T breathe in bitumen fumes — use RPE when wind conditions prevent upwind positioning.
  • DON'T lay asphalt near live traffic without approved traffic management fully installed.
  • DON'T handle coating materials without the PPE specified for the specific product.
  • DON'T ignore dehydration — hot asphalt work combined with warm weather causes heat illness.
  • DON'T skip the daily briefing — roller positions and communication arrangements must be confirmed.

See also: Road Construction Safety Awareness | Hot Asphalt Hand Laying Safety

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