Concrete Pour Daily Log: What to Document on Pour Day

Concrete pours are high-stakes events. Once the pour is complete and the concrete has set, your ability to correct problems is severely limited. Improper placement, inadequate consolidation, or out-of-spec materials discovered after the fact can mean expensive core samples, partial demolition, or structural reinforcement — all of which generate disputes about who bears the cost.

Your pour-day documentation is the contemporaneous record that establishes what happened, in what conditions, with what materials, performed by whom. Without it, disputes become he-said-she-said. With it, you have a provable chain of events.

Pre-Pour Checklist

The most valuable pour documentation begins before the first truck arrives. A pre-pour checklist creates a record that conditions were inspected and approved before placement:

• Subgrade and form inspection — forms in correct position, properly braced, and cleaned of debris. Note any discrepancies from the drawing and how they were resolved.
• Reinforcement inspection — rebar or post-tension in correct location, correct size, correct spacing, adequate cover to form surfaces. Note inspector name if a third-party inspection was performed.
• Embedded items — anchor bolts, sleeves, conduit, blockouts in correct position and adequately secured.
• Approval to place — if the specification requires special inspection or engineer approval before placement, note who gave the approval, when, and in what form (verbal, written, email).
• Equipment on site — pump or chute, vibrators (note number and shaft diameter), screed rails, finishing equipment.

During the Pour: What to Log

Mix design and supplier

Record the specified mix design (f'c, water-cement ratio, aggregate size, admixtures) and the actual mix design from the batch tickets. Note the concrete supplier and batch plant. Keep all delivery tickets — each ticket shows the mix design, water added at the plant, time batched, and time of discharge at the site.

Truck arrival and discharge times

ASTM C94 and most specifications require concrete to be discharged within 90 minutes of water introduction or before the drum has rotated 300 times — whichever comes first. Log the arrival time of each truck and the time discharge begins and ends. If any trucks arrive out of spec (too much elapsed time), document whether they were accepted, rejected, or tested before acceptance.

Slump tests and other QC tests

For each slump test: truck number or load number, time of test, result, and disposition (accepted/rejected). Note any other fresh concrete tests performed: air content, temperature, unit weight. Record the name of the testing technician and their certification status if known.

If cylinder samples are taken for compressive strength testing, log the number of sets, the loads they represent, and the testing lab they're sent to. Note the target strength and test age (typically 7 and 28 days).

Placement sequence and location

Document where concrete is being placed in sequence. For large foundations or slabs, reference the pour sequence drawing. Note any placement method changes (pump vs. direct chute), elevation changes, or areas requiring special attention.

Weather during the pour

Temperature, humidity, wind, and direct sun all affect fresh concrete. ACI 305 governs hot weather concreting (evaporation rates, precooling, curing requirements) and ACI 306 governs cold weather concreting (minimum temperature requirements, heating, protection). Document ambient temperature, concrete temperature (measured at discharge), wind speed, and humidity. Note any hot or cold weather precautions implemented.

Consolidation

Document vibrator use: vibrator spacing (typically not to exceed 1.5 times the radius of action, commonly 18–24 inches), insertion depth, and duration at each insertion point. Inadequate consolidation (honeycombing, cold joints) is one of the most common concrete defects — contemporaneous documentation that you vibrated properly shifts the burden in a defect claim.

Finishing operations

For slabs: screeding method, floating method and timing, finishing method (broom, trowel, exposed aggregate), timing of each finishing pass relative to bleed water. Premature finishing of bleed water is a common cause of delamination — documenting that you followed correct finishing sequence is critical if delamination is later discovered.

Post-Pour Documentation

Curing

Document curing method (wet cure, curing compound, insulated blankets, heated enclosure) and duration. Note the product used and any temperature monitoring for cold weather pours. Inadequate curing is a leading cause of concrete strength deficiency — your records showing the specified curing regime was followed are essential if 28-day break results come back low.

Form removal

Note when forms were stripped. Most specifications require minimum concrete strength or minimum cure time before stripping — document that the condition was met before you stripped.

Using ConstruTrack on Pour Day

ConstruTrack's daily report structure works well for pour documentation. Create a report for pour day with detailed work logs covering each phase (pre-pour, placement, finishing, curing). Add time cards for your crew. Photograph the pre-pour inspection, the placement in progress, and the finished surface. Note weather conditions and any QC test results in the notes section.

When you submit, the PDF is timestamped and emailed automatically. Your pour-day records are in a permanent, searchable archive the moment you hit submit. Try ConstruTrack free — no credit card required.