Discussion
Inadequate compaction during concrete casting results in-
Answer: B
Inadequate compaction results in Honey combing.
When concrete is not properly compacted, entrapped air is not driven out and the mortar does not fill the spaces between coarse aggregate, leaving a rough surface full of voids that looks like a honeycomb. It reduces strength and exposes reinforcement to corrosion.
Bleeding is water rising to the surface, and segregation is the separation of coarse aggregate from mortar; both result mainly from a poor mix, excess water or over-vibration rather than too little compaction.
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