What needs to be clarified
Check actual reinforcement position and provision of the specified cover before concrete conceals it, comparing nearest bars, spacers and formwork on accessible parts of the structural element.
Materials to prepare
- Reinforcement working drawing with cover requirements and revisions
- Spacer documents and diagram of their actual locations
- Access before concreting and photographs referenced to structural axes
What to compare
Measure from the formwork’s inner face to the nearest reinforcement, including stirrups, at identified points. Check cage position, spacer support and stability, congested areas and corners. Compare findings with design values and applicable tolerances; mark inaccessible areas separately and document corrections again before concrete conceals the inspected section.
Possible outcome of the analysis
Possible results include a measurement map and deviation list with repeat checks before placement; each area’s status rests on observed installation rather than spacer paperwork alone.
Limits of the conclusions
Spacer height does not establish cover everywhere. Pre-placement inspection cannot guarantee cage stability during concreting; subsequent condition and structural readiness require their own separate assessment.