Who records the results of slump tests for quality control on the batch certification?

The responsibility for recording the results of slump tests for quality control during batch certification typically falls to the contractor's certified technician. This professional is specifically trained to conduct and evaluate these tests accurately, ensuring that the concrete meets the required specifications for work quality and safety. The technician's credentials and familiarity with testing standards make them an essential figure in maintaining compliance with industry regulations.

In construction and concrete work, slump tests are critical for assessing the consistency and workability of fresh concrete. Accurate recording by a certified technician helps to build a reliable database of quality control metrics over the course of the project. This data is necessary for both compliance with contract specifications and for verification if issues arise later in the construction process.

Other roles, such as the lead project manager or the inspector on duty, may oversee the project or the testing process but are not directly responsible for the actual recording of the test results. The site labor foreman, while involved in the general management of labor on site, also does not have the specific training or responsibility related to performing and documenting slump tests. Thus, the certified technician plays a crucial and specialized role in quality control.