What should be done if there is an excessive amount of concrete in the measure after consolidation?

When an excessive amount of concrete is present in the measure after consolidation, the appropriate action is to remove a representative quantity using a trowel or scoop. This method ensures that the sample reflects the correct amount necessary for accurate testing, complying with the standards set forth in ASTM guidelines.

Removing a specific amount allows the sample to be within the recommended volume for testing, which helps maintain the integrity of the test results. An accurate measurement is crucial for assessing the properties of the concrete, such as its density and workability.

Other options like mixing thoroughly would not address the issue of excess material and could create a more homogenous mixture that may not represent the initial sample accurately. Adding more layers is unnecessary and does not resolve the problem of excess material. Sprinkling with water would not be appropriate either, as it could alter the moisture content of the sample and affect the test results. Therefore, the best practice is to adjust the sample size by removing a portion of the concrete.