If the concrete level is found to be 13mm above the top of the measure after consolidation, what is the recommended action?

When concrete is found to be above the top of the measure after consolidation, the appropriate action is to scrape off the excess. This ensures that the measurement accurately reflects the volume of concrete that will be considered in the testing process. Allowing the excess to remain can lead to misleading results, as it does not conform to the expected standards for measuring concrete samples.

Removing the excess eliminates variability in density or volume that could skew results, ensuring that the sample being tested is representative and adheres to the stipulated guidelines for concrete testing. Properly managing excess concrete in this way is important for obtaining reliable and consistent test outcomes, which is crucial for quality control in construction projects.

In contrast, leaving the excess, calking it, or compacting it would compromise the integrity of the sample and could invalidate the test results, which is why scraping off the excess is the recommended and correct action.