Concrete Batch Ticket & Mix Verification – QA/QC Inspection

The checklist

Pre-Delivery Verification

1. 1Retrieve the latest approved mix design (ID, strength class, exposure, max w/c) from the submittal log and compare to planned pour; acceptance: exact match to current revision; evidence: upload approved mix sheet (PDF) and note revision/date.
2. 2Confirm supplier certification and batch plant status; method: request current certificates; acceptance: certification within 12 months or per approved project specifications and authority requirements; evidence: attach certificate images and expiry dates.
3. 3Verify test equipment calibration (slump cone, thermometer, air meter) is current; method: review calibration stickers and reports; acceptance: valid certificates on date of pour; evidence: upload calibration certificates and photos of stickers.
4. 4Check ambient/site conditions prior to delivery; method: measure air temperature (°C), relative humidity (%), wind (m/s); acceptance: within project limits; evidence: enter readings and attach site photo with weather display.
5. 5Confirm planned placement location and volume versus truck capacity; method: compare pour card to dispatch; acceptance: planned volume within truck load ±0.2 m³; evidence: record pour ID, element, and attach marked plan.

Batch Ticket Review

1. 6Photograph the complete batch ticket (front/back) before any onsite additions; method: high-resolution images; acceptance: all fields legible; evidence: upload photos and confirm readability check passes.
2. 7Verify truck ID, batch plant, driver name, and batch time are recorded; method: cross-check ticket fields; acceptance: all identification fields present and initialed; evidence: tick fields and note any gaps.
3. 8Confirm mix ID/design code, target strength (MPa), slump target (mm), and max w/c match approval; method: compare ticket to approved mix; acceptance: exact match; evidence: highlight fields on photo or attach markup.
4. 9Record batched quantities per m³: cementitious (kg/m³), water (kg/m³), aggregates by size (kg/m³), SCMs (kg/m³); acceptance: cementitious within ±1%, water ±1%, aggregates ±2% or per specifications; evidence: enter values and save screenshot.
5. 10Verify admixture types and dosages (mL/m³ or L/m³) versus design; method: compare ticket to approval; acceptance: within ±3% of target or per specifications; evidence: note brand, lot, and dosage for each admixture.
6. 11Calculate theoretical water–cementitious ratio from ticket masses: w/(c+SCM); method: checklist calculator; acceptance: w/c ≤ specified maximum; evidence: store calculation image or app auto-calc record.
7. 12Confirm aggregate moisture corrections applied; method: review moisture % on ticket and adjusted batch masses; acceptance: correction lines present and values plausible; evidence: capture moisture readings or plant report excerpt.
8. 13Check yield versus ordered volume; method: compute theoretical yield from batch masses; acceptance: truck yield within ±1% of nominal m³; evidence: attach calculation sheet or app screenshot.

Mix Compliance Checks

1. 14Validate cement type/brand and mill certificate or lot number; method: compare to approved submittal; acceptance: exact match and traceable lot; evidence: note mill cert number and attach reference.
2. 15Confirm SCM proportion of total cementitious (e.g., fly ash, slag) matches design; method: compute percentage; acceptance: within ±2% absolute of design or per specifications; evidence: record calculation.
3. 16Measure concrete temperature at discharge with calibrated thermometer; method: insert probe per standard; acceptance: 10–32 °C or per approved project specifications; evidence: photo of reading and instrument ID.
4. 17Perform slump test per EN 12350-2 (or approved standard); method: slump cone on level plate; acceptance: within target ±25 mm or per specifications; evidence: photo of slump and recorded value (mm).
5. 18If air-entrained, test air content per EN 12350-7 (pressure method); method: calibrated air meter; acceptance: within specified target ±1.5% absolute; evidence: meter photo and value (%).

Onsite Verification & Adjustments

1. 19Record any water added onsite using truck water meter or measured container; method: read meter or weigh; acceptance: total w/c remains ≤ maximum; evidence: recomputed w/c and photo of meter/measure.
2. 20Document onsite admixture additions (type, dose, time) and authorization; method: supervisor approval; acceptance: written authorization present; evidence: signed instruction and updated ticket notes.
3. 21After any additions, mix at 12–18 rpm for ≥30 revolutions; method: monitor drum counter; acceptance: revolutions recorded; evidence: photo of counter or driver log entry.
4. 22Verify discharge start time versus batch time; method: compare timestamps; acceptance: within allowable window per approved project specifications and authority requirements; evidence: entered times and photo of ticket clock line.
5. 23If nonconformance is detected, stop placement and issue NCR; method: notify QA/QC and engineer; acceptance: NCR number assigned and disposition recorded; evidence: NCR form and defect photos.

Documentation & Sign-Off

1. 24Link ticket to placement location (gridline, element, elevation); method: annotate plan; acceptance: location unambiguously identified; evidence: uploaded marked-up plan and pour ID.
2. 25Capture inspector and contractor signatures on ticket and in app; method: wet ink and e-sign; acceptance: both signatures with timestamps; evidence: scanned ticket and digital signature log.
3. 26Export the finalized record to PDF/Excel with embedded QR authentication; method: app export; acceptance: files open and QR resolves to immutable record; evidence: distribution list and archive path.

Preview the printable checklist

Preview page one below. Open the image or download the PDF for all pages.

At a glance

• Reduce rework and durability failures by validating w/c ratio, admixture dosage, moisture corrections, and yield before placement. Verified batch tickets and onsite measurements create traceable evidence that the delivered mix truly matches the approved design.
• Standardize QA/QC flow from pre-delivery preparation to ticket photo capture, calculations, and sign-off. Clear acceptance cues, SI units, and required attachments help field teams avoid omissions and prove compliance under audit.
• Interactive online checklist with tick, comment, and export features secured by QR code.
• Accelerate approvals with automated calculations, legibility checks, and digital signatures. Exportable PDF/Excel reports and embedded QR authentication streamline handover to contractors, consultants, and owners while preserving an immutable record.
• This checklist is for site QA/QC inspection of ready-mix concrete batch tickets and delivery records. For detailed formulas, water-cement ratio checks, yield review, and technical verification, see the concrete mix verification guide or use QMix Auditor.

How to Use This Interactive QA/QC Checklist

1. Preparation: bring approved mix submittals, calibrated slump cone and plate, thermometer, air meter (if required), PPE, a marked-up pour plan, and a charged tablet or phone for photos, calculations, and signatures.
2. Start interactive mode: open the checklist, select project, pour ID, and truck number. Scan or photograph the batch ticket, then tick items as you verify each requirement.
3. Record and verify: enter ticket quantities in SI units, let the tool auto-calculate w/c and yield, attach photos, and add comments for any discrepancies or clarifications.
4. Manage exceptions: tag nonconformances, request approvals for onsite additions, and document corrective actions with time-stamped comments and supporting images.
5. Sign-Off: capture digital signatures from the inspector and contractor, finalize the record, and export to PDF/Excel with an embedded QR code for authentication.
6. Distribute and archive: email stakeholders, upload to the document control system, and verify that the QR code resolves to the immutable record.

What to capture on the batch ticket—fields that matter

A defensible batch ticket tells the story of your concrete before placement. Capture high-resolution photos of the entire ticket front and back while it is clean and dry. Verify the mix ID, target strength, exposure class, target slump, and maximum water–cementitious ratio match the approved design. Check that batched quantities per cubic metre for cementitious materials, total water, graded aggregates, SCMs, and admixture dosages are present and within batching tolerances. Confirm aggregate moisture corrections and adjusted batch masses are shown, and that truck ID, plant, driver, and batch time are complete and initialed. These details support yield calculations, w/c ratio checks, and traceability across lots and pours. If any field is missing or illegible, resolve it with the supplier before accepting the load. Record all values in SI units, and attach any supplementary plant reports or calibration excerpts to strengthen the record.

• Photograph the ticket clearly before any onsite additions.
• Match mix ID and limits to the approved submittal.
• Record batched quantities per m³ with tolerances noted.
• Confirm moisture corrections and adjusted batch masses.
• Ensure IDs and time stamps are complete and initialed.

Calculations that protect strength and durability

Two quick calculations protect the structure: water–cementitious ratio and yield. Use ticket masses to compute w/c as water divided by total cementitious materials (cement plus SCMs) by mass. Verify it does not exceed the specified maximum; if onsite water is added, recompute and document authorization. Next, check theoretical yield to ensure the delivered load will place the ordered volume; significant negative variance may indicate batching or moisture issues. Confirm SCM proportion aligns with the design to maintain durability targets such as sulfate resistance or low permeability. Where air entrainment is required, verify the target range to preserve freeze–thaw performance. Record readings for temperature and slump using calibrated equipment, noting acceptance cues from project specifications and authority requirements. Attach calculation screenshots and instrument photos so anyone can audit your numbers later without ambiguity.

• Compute w/c from ticket masses and recheck after water additions.
• Compare theoretical yield to ordered volume (±1% typical).
• Keep SCM percentage within the approved design range.
• Record calibrated slump and temperature readings in SI units.

Onsite changes and creating an airtight audit trail

If changes occur onsite—water or admixture additions—document type, quantity, time, and authorization. After any addition, spin the drum for sufficient revolutions to restore uniformity, then repeat key field tests. Cross-check batch time against discharge start to confirm delivery within allowable windows per the approved specifications. When nonconformances arise, stop placement, issue a nonconformance report, and seek disposition before proceeding. Close the loop with precise traceability: link the ticket to the pour location, attach a marked-up plan, and capture inspector and contractor signatures. Finally, export the record to PDF/Excel with a QR code that resolves to an immutable version-controlled copy for audits. Distribute to stakeholders and archive in your document control system so future tests, cores, or investigations can correlate performance to the exact delivered mix.

• Document onsite additions with authorization and redo critical checks.
• Verify discharge time complies with project time limits.
• Issue NCRs promptly when acceptance criteria are not met.
• Export reports with QR authentication and archive systematically.