Some of the daily responsibilities you will be trained to do are as follows: Become trained and certified to perform field testing including temperature, slump, air and unit weight and strength testing for concrete, grout and mortar to ensure building materials meet the required specifications for construction. You must have the ability to use your hands to handle, finger or feel; reach, climb or balance; crouch, stoop, crawl, kneel and sit, smell and see (including close, distance and peripheral vision, depth vision and ability to focus).