How should you label and track cylinders to ensure traceability?

• A. Assign unique cylinder IDs linked to batch and pour; label each cylinder with mix ID, date, location.
• B. Label with random numbers; no batch link.
• C. Store cylinders without labels.
• D. Use barcodes instead of IDs.

Answer: (A)

Maintaining traceability means every cylinder is tied to the exact batch and pour it came from, and you can read that link at a glance. By giving each cylinder a unique ID and linking that ID to the batch and pour, you create one clear record that connects the specimen to the specific mix design, the date of placement, and the site/location. Labeling the cylinder with the mix ID, the date poured or sampled, and the location makes it easy to verify which batch produced which cylinder and when/where it was placed, so test results can be accurately associated with the correct concrete.

If you used random numbers with no batch link, you couldn’t prove which cylinder came from which batch, which breaks the integrity of the test data. Storing cylinders without labels makes it impossible to tell their origin after transport or storage. Barcodes are useful, but they don’t replace the need for a unique, readable ID that ties to the batch and pour; you still need an ID and a way to cross-check it if a barcode can’t be scanned.