ACI Field Testing I Practice Questions - ACI Concrete Field Testing Technician Grade I Exam

Per ASTM C172, what is the minimum size of a composite sample used for strength tests of freshly mixed concrete?

0.5 ft^3 (14 L) 1 ft^3 (28 L) 2 ft^3 (56 L) 3 ft^3 (85 L)

Correct Answer:

1 ft^3 (28 L)

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