ACI Concrete Field Testing Technician - Grade I Practice Exam

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Question: 1 / 200

After consolidation, how much excess concrete above the top of the measure is considered optimum?

1/16 in.

1/8 in.

The correct amount of excess concrete above the top of the measure that is considered optimum is 1/8 inch. This amount provides a sufficient cushion for ensuring that the sample is adequately filled without risking issues related to overflow or excessive surface irregularities. A level of 1/8 inch maintains consistency with standard practices for concrete testing, where precise measurements are critical for achieving reliable results. Using this specific amount allows for accurate consolidation while still ensuring that the sample reflects the characteristics of the concrete being tested. It helps in avoiding any discrepancies that could arise from having too little or too much concrete, which could affect the test outcomes. Maintaining this standard ensures compliance with the relevant testing procedures and contributes to uniformity across various tests and equipment used in concrete field testing.

1/4 in.

1/2 in.

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