AL Water Projects Practice Questions - Alabama Water Projects Contractor Examination Exam

Before placing the next lift of shotcrete on a partially completed tank wall, the crew should:

Wet the rebound in place and shoot over it Scarify only the top inch and leave loose sand against the bars Remove loose material and rebound from the previous layer so the new shotcrete bonds to sound material Cover the wall with polyethylene and shoot through the plastic

Correct Answer:

Remove loose material and rebound from the previous layer so the new shotcrete bonds to sound material

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