AL Tunnel Practice Questions - Alabama Tunnel Contractor Examination Exam

What does a specified slump represent on a tunnel concrete mixture?

A license to add any amount of water at the pump The intended workability of the approved mixture for placement, not a reason to change water-cement ratio in the field The 28-day compressive strength in psi The maximum coarse-aggregate size in inches

Correct Answer:

The intended workability of the approved mixture for placement, not a reason to change water-cement ratio in the field

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