ACI Concrete Field Testing Technician - Grade I Practice Exam

What action is required if there is an excess quantity of concrete in the measure after final layer consolidation?

1. Soak it with water

2. Remove a representative quantity with a scoop or trowel

3. Leave it to settle

4. Report it to a supervisor

The correct answer is: Remove a representative quantity with a scoop or trowel

When an excess quantity of concrete is found in the measure after the final layer has been consolidated, the appropriate action is to remove a representative quantity with a scoop or trowel. This procedure is essential for ensuring an accurate measurement of the concrete's volume, which is critical for determining its consistency and properties. By removing the excess concrete, you can ensure that the measure contains only the specified quantity that the test requires. This helps in maintaining the integrity of the test results, allowing for effective quality control and assessment of the concrete mix. Leaving the excess concrete as it is may result in an inaccurate reading, while soaking it with water or allowing it to settle would not lead to a correct measurement either. Reporting it to a supervisor does not directly address the need to adjust the concrete quantity immediately in the testing process. Therefore, removing the excess with a scoop or trowel is the correct and practical approach.