SC Concrete Paving Practice Questions - South Carolina Concrete Paving Contractor Examination Exam

Why should segregated, pocketed coarse aggregate in a GAB surface be remixed or removed before paving?

Because white limestone will discolor the concrete Because open, stony pockets give nonuniform support and can drain mix water from the slab Because SCDOT requires all base to be painted black Because segregation increases the concrete's air content

Correct Answer:

Because open, stony pockets give nonuniform support and can drain mix water from the slab

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