NM CID GS-4 Practice Questions - New Mexico CID GS-4 Concrete, Cement, Walkways And Driveways Examination Exam

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Placing welded-wire reinforcement on the subgrade and hooking it up through the plastic concrete after strike-off is poor practice because:

The wire will be too high and will rust at the surface The sheet rarely ends in the specified upper third and often remains on the bottom with no useful cover The method increases specified compressive strength too much OSHA forbids any wire reinforcement in flatwork

Correct Answer:

The sheet rarely ends in the specified upper third and often remains on the bottom with no useful cover

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