Introduction to ACI Field Technician test preparation ASTM C 1064 Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C 172 Standard Practice for Sampling Freshly Mixed Concrete ASTM C143 Standard Test Method for Slump of Hydraulic-Cement Concrete ASTM C138 Standard Test Method for Density (Unit Weight), Yield, and Air Content of Concrete ASTM C231 Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C173 Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method ASTM C31 Standard Practice for Making and Curing Concrete Test Specimens in the Field All ACI Field Technician Grade 1 Tests in Real Time