What should the aggregate technician do while heating the sample on the gas burner or electric hot plate?

While heating the sample on the gas burner or electric hot plate, the aggregate technician should continually attend to the heating process. This practice is crucial because variations in temperature can affect the properties of the sample being heated, potentially leading to inaccurate results. Continuous attention allows the technician to observe any changes, prevent overheating, and ensure that the heating procedure follows prescribed standards or protocols. Proper monitoring can help maintain sample integrity, as unattended heating can result in combustion or degradation of the material being tested. Through vigilant supervision, the technician is better positioned to achieve precise and reliable outcomes in the assessment of aggregate properties.