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Honeycombing

Honeycombing in concrete describes the voids caused by the failure of the mortar to adequately permeate and fill spaces between coarse-aggregate particles. Which of the following statements are true of the honeycomb effect? Choose 2

A. honeycombing will always be an aesthetic problem.
B. honeycombing will not be minimized by compaction
C. honeycombing may substantially reduce concrete strength
D. segregation as a result of vibration is necessary to eliminate honeycombing
E. honeycombing is not present if a surface skin of mortar is visible.

AnswerA and C are true - honeycombing results in an unattractive finish and may reduce concrete strength, depending on depth and scale of the voids.

ARE 4.0 exam prep: BCDS

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