Use ACI 302.1R guide content to diagnose or avoid a floor construction defect

Steps

1. Identify which defect category applies (crazing, dusting, curling, low spots, delamination/blistering, discoloration) and consult the general causes described in ACI 302.1R (Guide for Concrete Floor and Slab Construction) for that category rather than guessing from a single symptom.
2. Trace the defect to a construction-stage cause consistent with the guide's framework: mix design/water content, placement/consolidation, finishing timing, curing, or environmental conditions during placement.
3. Cross-check the diagnosis against site records (weather at time of pour, curing method used, finishing-crew notes, delivery tickets) rather than relying on visual inspection alone.
4. Use the guide's general recommendations to inform prevention on future pours (finishing timing relative to bleed water, curing application timing) rather than treating the document as a numeric acceptance/rejection spec.
5. Confirm the specific ACI 302.1R edition referenced in the project's specifications or being cited, since guide documents are periodically updated and older editions may have been superseded.