What criteria are used to assess surface defects such as scaling and crazing?

• A. Severity, extent, and impact on performance; minor isolated cracks may be acceptable, more serious defects require repair or replacement.
• B. Color and gloss variability.
• C. Time since pour.
• D. Presence of moisture.

Answer: (A)

Evaluating surface defects relies on how severe the defect is, how much area it affects, and whether it impacts performance. This approach directly links the observation of scaling or crazing to functional outcomes: small, isolated cracks or shallow scaling that don’t compromise durability or safety may be acceptable, while more serious or widespread defects that could affect strength, freeze-thaw resistance, or service life require repair or replacement. Color and gloss variation describe appearance rather than structural impact, time since pour doesn’t indicate how a defect behaves in service, and moisture presence may contribute to issues but isn’t the criterion used to rate the defect itself.