NV C-5 Concrete Practice Questions - Nevada C-5 Concrete Contractor Examination Exam

Access More Questions

Engineered fill under a C-5 building slab is specified at 95 percent of ASTM D1557 in 8-inch maximum loose lifts. After three lifts, a loaded water truck leaves 2-inch ruts and pumping. What should the contractor do?

Stop, rework or replace the failing lift until a proof-roll shows a firm, non-yielding surface, then continue in specified lifts Place the vapor retarder and pour; the slab will bridge the ruts Add 2 inches of dry cement on the ruts and pour the same day Increase slump to 8 inches so the concrete fills the ruts

Correct Answer:

Stop, rework or replace the failing lift until a proof-roll shows a firm, non-yielding surface, then continue in specified lifts

Access more questions from this quiz

Continue to NV C-5 Concrete Practice Questions - Nevada C-5 Concrete Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions