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Rock pocket / Honey combing in concrete

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I have a situation where the contractor poured a concrete grade beam and
upon stripping the forms there are a couple of places where the concrete
was not consolidated properly. The rock pockets do not extend completely
through the grade beam. They penetrate approximately 2" into the width of
the beam and encomopass approximately 18" x 6" area.

Are there publications available which might give some guidence on how to
restore the structural integrity of the grade beam?

Since the rock pocket is minor in nature, is there cause for concern?

any help, advice will be appreciated

John Buchanan