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

When filling the bowl of the air meter, the concrete should be placed in two layers of equal depth. This approach allows for proper consolidation and reduces the chances of air entrapment, which can lead to inaccurate readings of the concrete's air content.

By using two layers, you can achieve a more uniform distribution of the concrete in the bowl, which helps ensure that the entire volume is filled adequately and consistently. Layering the concrete in this manner allows for effective tamping of each layer, which eliminates any voids and ensures the sample is representative of the concrete mix being tested.

The method of placing the concrete in two equal layers is aligned with standardized testing procedures, promoting accuracy and reliability in measurement, which is essential for quality control in concrete work.