Asphalt & Surfacing Works RAMS: A Complete Risk Assessment Guide for Surfacing Contractors

Table of Contents

• Why Asphalt RAMS Matter
• Key Hazards in Asphalt Surfacing Works
• Hot Bitumen Burns: The Primary Injury Risk
• PAH Fume Exposure: COSHH Assessment Requirements
• Paving Plant Operations and Traffic Management
• What Your Asphalt RAMS Must Cover
• Frequently Asked Questions
• Next Steps

Why Asphalt RAMS Matter

Asphalt and surfacing works are among the most hazard-dense operations in civil construction. Hot bituminous materials at 140-180°C, heavy plant operating in coordinated sequences on live or semi-live roads, PAH (polycyclic aromatic hydrocarbon) fume exposure, and traffic management failures all present risks of serious injury or death. Principal contractors on highway and civil projects apply the same scrutiny to surfacing RAMS as they do to excavation or structural work.

Under CDM 2015, surfacing contractors are duty holders who must produce a project-specific RAMS before work begins. On highway schemes, the relevant authority (Highways England, local authority, or client) may also impose specific requirements that must be reflected in your RAMS.

This guide explains what a compliant asphalt surfacing RAMS must include, with a particular focus on the hot bitumen and PAH hazards that are most frequently underestimated in submitted documents.

Browse all trade RAMS templates on the RAMS AI trade hub — covering 22 specialist construction trades.

Key Hazards in Asphalt Surfacing Works

• Hot bitumen contact burns — Asphalt paving material is typically delivered and laid at 140-180°C. Contact with skin causes immediate and severe thermal burns. This is the most common serious injury in the surfacing trade.
• PAH fume inhalation — Hot bitumen releases polycyclic aromatic hydrocarbons (PAHs) as fumes during laying. PAHs are classified as probable human carcinogens (IARC Group 2A). Occupational exposure to bitumen fumes is associated with increased risk of lung, bladder, and skin cancer.
• Plant-pedestrian conflicts — Paving machines, articulated dump trucks, and compaction rollers operate in close proximity. Plant-pedestrian conflict is a leading cause of fatal accidents in the surfacing trade.
• Traffic management failure — Highway surfacing works are adjacent to live traffic. Traffic management failure — signs knocked over, vehicle incursion into the work zone, or operative working outside the protected zone — can result in fatal accidents.
• Manual handling during hand-laying — Hand-laying of asphalt in confined areas (ironwork surrounds, channel blocks, patching) involves heavy rakes and lutes working with hot material at awkward postures.
• Noise from compaction plant — Vibrating roller and wacker plate operations generate significant noise. Hearing protection must be specified.

Hot Bitumen Burns: The Primary Injury Risk

Asphalt delivered to site at 140-180°C will cause deep tissue burns on contact with bare skin within seconds. Your RAMS must specify:

• PPE for all operatives in the paving area — Long-sleeved high-visibility clothing (not synthetic fibres that melt on contact with hot bitumen), heat-resistant gloves (not standard work gloves), safety boots with heat-resistant soles (standard steel-toecap boots are not adequate — bitumen-proof boots must be worn), and safety spectacles where splashing risk is present.
• First aid for hot bitumen burns — Do not attempt to remove solidified bitumen from burned skin. Cool the burn with cold running water for at least 20 minutes. Do not apply ice. Seek immediate medical attention. Specify the nearest burns unit or hospital and confirm first aid provision on site including burn dressings.
• Prohibited actions around hot material — Specify that no operative will lean over the paving machine hopper, that lutes and rakes will be held at arm's length when spreading hot material, and that no operative will step into an area of freshly laid hot asphalt.

PAH Fume Exposure: COSHH Assessment Requirements

Your COSHH assessment for asphalt operations must address PAH fume exposure. Key requirements:

• Exposure assessment — PAH exposure levels in asphalt paving operations typically exceed the WEL (BOHS and HSE data suggest that paver operators can be exposed to levels above the indicative OEL for benzo[a]pyrene marker compound). Your COSHH assessment should reference the HSE's guidance on bitumen fumes (COSHH essentials) and, for large contracts, commission an occupational hygiene assessment of actual exposure levels.
• Work upwind — Where possible, operatives should work upwind of the paving machine to minimise fume exposure. Specify this as the default working practice.
• RPE for high-exposure positions — Operatives working consistently in high-fume concentrations (e.g., the paver operator in the cab without air filtration, or hand-rakers in confined areas) must use appropriate RPE. For bitumen fumes, an A1P3 combination filter half-mask is typically specified.
• Operative rotation — Rotate operatives between high-exposure positions (paver operator, hand-raker) and lower-exposure positions to limit individual daily exposure.
• Health surveillance — For operatives regularly exposed to PAH fumes, health surveillance should be considered. At a minimum, a baseline health questionnaire and skin inspection should be conducted for regularly exposed workers.

Paving Plant Operations and Traffic Management

Your RAMS must address the management of plant and traffic as integrated hazard areas:

• Plant chain of command — Specify the chain of command for the paving train: who directs truck approach and discharge, who signals the compaction roller operators, and who is responsible for stopping the paving operation in the event of a hazard.
• Banksmen for reversing plant — All reversing plant movements (articulated dump trucks reversing to the paver, roller manoeuvring) must be controlled by a banksman positioned in a safe location with clear visibility and communication with the plant operator.
• Traffic management — Highway asphalt surfacing requires Chapter 8 compliant traffic management designed by an NRSWA-accredited operative, approved by the relevant authority, and installed before works begin. Your RAMS must reference the approved traffic management plan drawing number and confirm the contractor responsible for installation and maintenance.
• Exclusion zones — Specify the minimum clearance from the live traffic lane to the nearest operative, and how this will be maintained when the paver approaches narrow sections or ironwork surrounds.

What Your Asphalt RAMS Must Cover

• Hot bitumen PPE: heat-resistant gloves, bitumen-proof boots, clothing specification
• Burn first aid procedure: cooling, no ice, burn dressing, nearest burns unit
• COSHH for PAH fumes: exposure assessment, work upwind, RPE specification, operative rotation
• Health surveillance for regular bitumen fume exposure
• Plant chain of command: paving train management, banksmen for reversing
• Traffic management: Chapter 8 plan reference, approval authority, maintenance
• Exclusion zones within the work zone
• Noise: compaction plant noise levels, hearing protection zones
• Manual handling: hand-raking postures, lute and rake handle length
• Weather restrictions: no laying in rain (for certain mix types), temperature limits
• CDM pre-start briefing record

Frequently Asked Questions

What type of gloves should asphalt paving operatives wear?

Standard general-purpose work gloves are not adequate for asphalt paving. Gloves must be heat-resistant to at least 150°C — look for gloves rated to EN 407 (thermal hazard protection). Leather or Kevlar heat-resistant gloves are the most commonly used in the surfacing trade. Avoid rubber or latex gloves, which may be degraded by bitumen contact. Replace gloves immediately if they become soaked with hot bitumen.

Does Chapter 8 traffic management need to be designed by the surfacing contractor?

Not necessarily — the traffic management can be designed by a specialist traffic management contractor, provided the designer holds the required NRSWA qualifications and the design is approved by the relevant highway authority before works begin. However, the surfacing contractor is responsible for ensuring that compliant traffic management is in place before their operatives start work. If the traffic management fails — for example, if a sign is knocked over — the surfacing contractor must stop work until it is reinstated.

What temperature restrictions apply to asphalt laying?

Temperature restrictions depend on the specific mix type. As a general guide: do not lay hot rolled asphalt or dense bitumen macadam in rain, as the water will cause steam flashing and premature cooling that may prevent adequate compaction. Many mixes have minimum air temperature restrictions (typically 5°C for standard mixes, higher for thin surfacing layers). Always consult the mix supplier's specification for the specific product being laid and document the temperature restrictions in your RAMS.

Next Steps

Your asphalt RAMS should be project-specific, referencing the specific mix type, the traffic management plan, and the site conditions. RAMS AI generates comprehensive asphalt surfacing risk assessments pre-populated with the hazards and controls described in this guide.