Measured moisture percentage for aggregates corresponds to which parameter?

• A. Air Content Measurement
• B. Moisture Content
• C. Water Addition at Jobsite
• D. Total Mixing Revolutions

Answer: (B)

Understanding how much water is already in the aggregate is essential for accurate batch proportions. The measured moisture percentage for aggregates is the Moisture Content—the amount of water contained in the aggregate, usually expressed as a percentage of the dry weight. This value tells you how much water the aggregate will contribute to the concrete, so you can adjust the batch water to maintain the target water-cement ratio and workability. If the aggregate is wetter than assumed, you reduce the water added; if drier, you may need to add water. This is different from air content in the concrete (which measures voids), water addition at the jobsite (the actual water you add to the mix), or total mixing revolutions (the mixing action).