Concrete Pour Card

Definition

A Concrete Pour Card — sometimes called a pour ticket, pour request, or concrete release note — is the short, structured document that authorises a specific pour to proceed on a specific day. It exists because a concrete pour is one of the few construction activities that is genuinely irreversible: once the truck discharges, whatever was missing stays missing. The card forces the site team to confirm, in writing and in sequence, that every prerequisite has been satisfied before the batching plant is called out.

What a Good Pour Card Contains

• Pour ID, location reference (grid, level, element type), and drawing revision.
• Concrete mix design number, strength, slump and cement type — with the approved submittal reference.
• Estimated volume, planned truck sequence and cycle time.
• Reinforcement inspection sign-off — steel fixer, engineer, and consultant.
• Formwork inspection — geometry, alignment, props, release agent, cleanliness.
• Embedded items checklist — anchor bolts, cast-in plates, sleeves, waterstops, MEP inserts.
• Weather window — forecast temperature and precipitation for the next 24 hours, with the mix designer's limits noted.
• Curing plan and post-pour protection.
• Names and signatures — foreman, site engineer, quality inspector, consultant witness.

Why It Matters

The pour card is the difference between a pour that is executed and a pour that is negotiated in the middle of the night. It replaces the "I thought you had checked it" argument with a signed line. Concrete failures are rarely caused by the concrete itself; they are caused by missing embedments, dislodged reinforcement, contaminated formwork, or a mix delivered outside its design window. Every one of those conditions is catchable on a pour card the day before the truck rolls.

Real-World Example

On a 32-storey residential tower in Auckland, the shear-wall pour on Level 18 was scheduled for a Saturday morning. The pour card was walked around by the site engineer on Friday afternoon. Two lift-shaft cast-in plates were missing from the reinforcement cage — they had been delivered late and set aside in the container. The pour was held for 90 minutes on Saturday morning while the plates were fixed and re-inspected. The cost was a delayed truck sequence. The alternative — discovering the missing plates during lift-shaft fit-out three months later — would have meant coring the wall, drilling and epoxying replacement anchors, and a designer-signed remediation. The card paid for itself several times over on that single element.

Practical Lessons Learned

• Walk the pour the day before with the card in hand. Anything discovered on the morning of the pour is discovered too late.
• Photograph every embedment after final fix and before formwork closes. The photos live inside the pour-card file — they are the only usable evidence when a design query lands eight months later.
• Weather is a hold criterion, not an inconvenience. Pouring at 4 °C with rain forecast and no hoarding is a warranty problem you will own for years.
• The card is the interface with the batch plant. The plant should not accept a pour instruction without a released card number.
• Small pours need cards too. Housekeeping pours and infill slabs cause a disproportionate share of embedment defects because "it's only a small one."

Common Mistakes

• Signing the card the same morning to keep the schedule moving — which defeats the purpose entirely.
• Treating the reinforcement inspection as a formality; steel fixers legitimately move bars while formwork is closing.
• No linkage to the quality gate — the card lives in a folder nobody audits.
• Missing the MEP embed list because the mechanical subcontractor was not walked through the pour zone.
• Ignoring the concrete supplier's temperature or admixture limits because "it looked fine last week."
• Verbal weather calls with no forecast attached to the card.
• No named consultant witness — first sign of a defective pour and everyone remembers the meeting differently.

Expert Tips

• Use a physical card on site and a scanned copy in the QMS. The physical copy is what gets marked up during the walk; the digital copy is the audit trail.
• Sequence the sign-offs deliberately: steel, then embedments, then formwork, then weather. Reversing the order lets earlier defects slip past.
• Pre-print the mix design and slump limits so the site engineer does not have to remember them at 06:30 with a truck idling.
• Attach the delivery tickets afterwards. A pour card without matching batch tickets is only half the story when a cube result comes back low.
• Review pour-card holds monthly. A rising pattern of same-day holds is a leading indicator of a broken planning cycle upstream.

Key Takeaways

• The pour card is the last honest chance to catch what has been missed before the pour becomes permanent.
• Walk the pour the day before, in daylight, with the card in hand.
• Every embedment is photographed; every signature is named.
• The batching plant should not release a truck without a released card number.
• Trending held pours reveals upstream planning weaknesses that other reports miss.

Related Concepts

Interlocks with Method Statement, Quality Gate, Submittal Management, and RFI Management. Pour-card templates and inspection checklists at PMMilestone.org.