ACI Concrete Field Testing Technician - Grade I Practice Exam 2025 - Free Concrete Field Testing Practice Questions and Study Guide

Question: 1 / 400

What is the maximum allowable size of aggregate for this test method?

25 mm (1 in.)

50 mm (2 in.)

The maximum allowable size of aggregate for the specific test method referenced in this context is 50 mm (2 in.). This size limit is important because it ensures that the test results are representative of the concrete mix's properties. If the aggregate size exceeds this limit, it may lead to inaccuracies in the testing process, affecting the workability, strength, and overall performance of the concrete.

Using larger aggregates in testing could introduce variability that is not consistent with typical concrete application scenarios, making the results less reliable. Thus, adhering to a maximum aggregate size of 50 mm aligns with industry standards for concrete testing methods, ensuring a balance between practical mixing techniques and accurate performance assessments.

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75 mm (3 in.)

100 mm (4 in.)

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