If the concrete sample contains aggregate larger than that allowed for this test, what must be done?

When a concrete sample contains aggregate larger than the specified maximum size allowed for the test, it is crucial to adhere to proper testing protocols to ensure accurate results. Wet sieving the sample over a 1-inch sieve serves to separate the oversized aggregates from the appropriate sizes required for the testing. This method allows for the removal of any large particles that could potentially skew the test results and ensures that only the aggregates within the acceptable size range are included in the analysis.

This procedure is fundamental in concrete testing because the properties of the concrete mix can significantly change with varying aggregate sizes. By conducting a wet sieve procedure, you not only comply with testing standards but also maintain the integrity of the test by ensuring that the sample is representative of what is required for accurate measurement and analysis.