October 6-7, 2020 held at Associated Builders and Contractors (ABC) Building, Pearl, MS This class covers field testing of fresh concrete. ACI Concrete Field Testing Technician, Grade 1 certification covers the following standard test methods: ASTM C172 Sampling ASTM C143 Slump ASTM C138 Unit Weight ASTM C173 Air Content Volumetric Method ASTM C231 Air Content