AZ ROC C-36 Plastering Practice Questions - Arizona ROC C-36 Plastering Examination Exam

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If direct-applied portland cement plaster is to be applied to a smooth poured concrete wall without a bonding agent, how must the surface be mechanically prepared?

Acid washed with un-neutralized muriatic acid only Smooth troweled and sealed with a curing compound Painted with an oil-based primer Abraded or bush-hammered to remove slick form oil and expose aggregate keys

Correct Answer:

Abraded or bush-hammered to remove slick form oil and expose aggregate keys

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