ACI Concrete Field Testing Technician - Grade I Practice Exam

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What is required after the temperature measuring device is submerged in the fresh concrete?

Remove it immediately

Gently press the concrete around the device

After submerging the temperature measuring device in fresh concrete, it is essential to gently press the concrete around the device. This step ensures that the temperature sensor gets accurate readings by minimizing air pockets and ensuring that the sensor is fully surrounded by the concrete. This helps achieve a representative temperature measurement that is critical for assessing the properties of the concrete mix and ensuring it meets specified requirements.

Other actions, such as removing the device immediately or waiting for an hour, would not provide accurate data. Reporting the temperature immediately, without allowing sufficient time for the sensor to adjust to the concrete’s temperature, could lead to inaccurate readings. Hence, the importance of properly engaging the device with the surrounding concrete cannot be understated.

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Wait for an hour

Report the temperature immediately

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