Which types of aggregate may be used with the volumetric method of determining air content of concrete?

The volumetric method of determining air content in concrete is versatile and can be applied to all types of aggregates. This method relies on measuring the volume of air voids that are present in the mix, which can occur in any type of aggregate—lightweight, coarse, recycled, or others.

Lightweight aggregates may have higher air content due to their nature, while coarse aggregates contribute to the overall structure and volume-based calculations. Recycled aggregates can also have varied air content, depending on their source and treatment.

Utilizing this method across all aggregate types ensures comprehensive and accurate measurement of air content in diverse concrete mixes, making it an essential approach in quality control and concrete mixture design. Each type of aggregate plays a role in the final air content, thus highlighting the inclusivity of the method for all available aggregate options.