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Bleeding in fresh concrete refers to

  • A.cement paste leaking out through gaps in the formwork
  • B.reinforcement staining the surface with rust marks
  • C.air being drawn into the mix during the placing operation
  • D.water rising to the surface as the solids settle

Answer: D

Excessive bleeding leaves a weak layer at the surface and can trap water beneath aggregate particles. It is reduced by better grading, by finer cement or by a lower water content. Some bleeding is normal and only excess is a problem.

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