What action should a CTI take when visible segregation is observed during discharge?

• A. Stop discharge and resume once the mixture is uniform.
• B. Document the observation, notify the producer only, and continue.
• C. Stop discharge, document the observation, and notify the producer and site to take corrective action.
• D. Ignore the observation and continue.

Answer: (C)

When you see visible segregation during discharge, the mix is no longer uniform and that can affect strength and finishing. The right action is to stop the discharge, document what you observed, and notify both the producer and the site so they can take corrective measures. Stopping prevents further separation, and documenting creates a record for traceability and accountability. Notifying the producer and site ensures everyone knows there’s an issue and can implement actions such as adjusting the mix or discharge rate, re-mixing if possible, or changing handling procedures to restore uniformity. Continuing or ignoring the observation can lead to nonuniform concrete and potential field problems.