Risk Assessment for Concrete Pouring

UK construction-safety guidance by the Riskora Editorial Team

Producing a proper risk assessment for concrete pouring is not optional — it is a legal and practical requirement for construction work in the UK. Whether you are a sole trader or managing a multi-phase project, documented risk management protects your workers, satisfies clients, and keeps you on the right side of HSE enforcement.

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Example Risk Assessment

Risk Assessment for Concrete Pouring

  • Scope and description of the concrete pouring works
  • Site-specific hazards relevant to construction
  • Persons at risk (workers, public, visitors)
  • Existing controls in place
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When This Document Is Required

The Management of Health and Safety at Work Regulations 1999 require employers to carry out a suitable and sufficient risk assessment for concrete pouring before operations start. Self-employed workers carrying out construction activities must also comply.

What Must Be Included

  • Scope and description of the concrete pouring works
  • Site-specific hazards relevant to construction
  • Persons at risk (workers, public, visitors)
  • Existing controls in place
  • Risk rating before and after controls
  • Additional controls required
  • Residual risk level
  • Review schedule
  • Responsible person for review

Common Mistakes to Avoid

  • Using a generic template without adapting it to the actual concrete pouring conditions on site
  • Not reviewing the document when site conditions change
  • Missing sign-off from a competent person before work begins
  • Under-rating risk to avoid implementing additional controls
  • Not consulting workers during the assessment process
  • Treating the document as a one-time exercise

Example Scenario

A construction contractor in UK needs to produce a risk assessment for concrete pouring before starting work next week. The client has requested professional documentation as a condition of site access. Using Riskora, they select the relevant trade preset, review pre-populated hazards, adjust controls for their specific site, and generate a professional risk assessment in under 5 minutes — ready for review and sign-off.

The legal duty behind a risk assessment for concrete pouring

Wet cement is a COSHH substance: it is strongly alkaline, and prolonged skin contact causes full-thickness chemical burns as well as allergic contact dermatitis from hexavalent chromium. Alongside that, CDM 2015 requires temporary works to be properly designed, checked and inspected, with the permit-to-pour acting as the record that the check happened before the concrete arrived.

  • COSHH Regulations 2002 (wet cement — alkaline burns, dermatitis) · SI 2002/2677

    HSE

  • CDM Regulations 2015 · SI 2015/51

    HSE

  • Control of Vibration at Work Regulations 2005 (poker vibrators) · SI 2005/1093

    HSE

  • Lifting Operations and Lifting Equipment Regulations 1998 (skips) · SI 1998/2307

    HSE

Supporting HSE guidance

  • BS EN 12812 — Falsework: performance requirements and design: BSI
  • Safe use of concrete pumps — industry guidance: CPA

Hazards and controls reviewers expect to see

The two failures that hurt people on a pour are structural and chemical, and documentation usually covers neither properly. Formwork collapses because the pour went faster than the falsework design assumed, and burns happen hours later because someone knelt in wet concrete in porous trousers. Both are controlled by things that must be written down in advance — a pour rate and a permit, and a skin-protection standard.

HazardControl measure
Formwork or falsework failure during the pourFalsework designed and checked to BS EN 12812, permit-to-pour signed by the temporary works coordinator after inspection, pour rate limited to the design assumption, and a nominated person watching the formwork throughout.
Wet cement causing alkaline burns and dermatitisImpervious gloves, long sleeves and eye protection as standard; wellingtons taped where operatives stand in wet concrete; washing facilities immediately available; and a written first-aid response for skin and eye contact.
Pump line blockage, whip and blow-outLine secured and clamped, no one within the whip radius during priming or clearing, pressure released before opening any coupling, and blockage clearance carried out only by the pump operator.
Hand-arm vibration from poker vibratorsTrigger times calculated against the 2.5 m/s² A(8) action value, operatives rotated across the pour, and low-vibration pokers specified.
Falls into shuttering, reinforcement or the pour itselfEdge protection to all open edges and voids, rebar caps fitted to all projecting starter bars, and boarded access routes over reinforcement mats.
Delivery vehicle and pump set-up interfaceBanksman for all reversing, level and adequate ground for outriggers with spreader pads, exclusion zone around the pump boom, and a traffic route agreed before the first delivery.

A defensible work sequence for concrete pouring

  1. 1Confirm the falsework design and check certificate; inspect the formwork, props and ties against the design and issue the permit to pour.
  2. 2Set out access routes, boarded walkways over reinforcement, edge protection and rebar caps before any concrete is ordered.
  3. 3Position the pump on assessed ground with spreader pads under outriggers; establish the boom exclusion zone and banksman positions.
  4. 4Prime the line with everyone clear of the whip radius; confirm the agreed pour rate with the gang and the pump operator.
  5. 5Place concrete in the designed sequence and lifts, monitoring the formwork continuously and recording poker trigger times.
  6. 6Finish, cure and protect the pour; wash down plant to a designated area with the washout contained.
  7. 7Strike formwork only on the temporary works coordinator's authorisation once the specified strength is confirmed.

Why these documents get rejected

  • No permit-to-pour or temporary works coordinator named
  • Pour rate not stated, or stated without reference to the falsework design
  • Wet cement listed as a hazard with 'wear gloves' as the only control
  • No rebar caps on projecting starter bars in the access arrangements
  • Pump set-up described without ground bearing, spreader pads or boom exclusion zone

Concrete Pouring: common questions

Why does a concrete pour need a permit?

Because the falsework is a temporary structure whose safety depends on it being built exactly as designed and loaded no faster than assumed. The permit to pour is the record that a competent person inspected it against the design and authorised the load — and it is the document investigated first after any collapse.

How serious are wet cement burns?

Serious enough to require skin grafting. Cement burns are alkaline and painless at first, so operatives often continue working while the damage develops. That is precisely why the control has to be preventive — impervious clothing and immediate washing — rather than reliant on the operative noticing.

Who is allowed to clear a blocked concrete pump line?

The pump operator, after the pressure has been released. Blockage clearance is the point at which line whip and blow-out injuries occur, so the method statement should state that no one else opens a coupling and that the whip radius is cleared before pressure is applied.

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