ACI Concrete Field Testing Technician - Grade I

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When an accurate determination of the material finer than the 75-µm (No. 200) sieve is required for an aggregate sample, ASTM C136 states that dry sieving alone is insufficient. Which test method should be performed prior to the dry sieve analysis?

ASTM C29 (Unit Weight) ASTM C127 (Specific Gravity and Absorption of Coarse Aggregate) ASTM C131 (L.A. Abrasion) ASTM C117 (Materials Finer than 75-µm Sieve by Washing)

Correct Answer:

ASTM C117 (Materials Finer than 75-µm Sieve by Washing)

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