A wall placement stops because the pump line plugs, and the leading edge begins to stiffen before the next lift can be placed. Which action best addresses the cold-joint risk?
Correct Answer
D) Create or treat a construction joint as directed by the specifications or engineer before continuing
Once concrete has stiffened enough to risk a cold joint, the crew should follow the specified construction-joint or surface-treatment procedure before continuing. Other choices: dry cement, extra vibration alone, and surface water do not create a properly bonded joint.
Why This Is the Correct Answer
Once concrete has stiffened enough to risk a cold joint, the crew should follow the specified construction-joint or surface-treatment procedure before continuing. Other choices: dry cement, extra vibration alone, and surface water do not create a properly bonded joint.
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