Before weighing the measure and sample, what must be done after completing the strike off procedure?

Cleaning all excess concrete from the exterior of the measure is essential before weighing. This practice ensures that only the concrete within the measure is accounted for in the weight measurement. Any excess material adhering to the outside could add unintended weight, leading to inaccuracies in the total measurement. Accurate weighing is critical for achieving precise mixing ratios and for the overall integrity of any concrete testing or mixing process.

Proper preparation of the measuring device enhances the reliability of the results, ensuring that the final concrete mix will meet specified standards and performance expectations. Removing excess concrete also helps maintain the cleanliness and longevity of the measuring equipment, contributing to better maintenance practices. Overall, this step is crucial for producing valid and repeatable test results in accordance with ASTM standards.