Answer :
Final answer:
The ASTM standard for the volumetric method of air content determination in concrete is ASTM C173 / C173M. It's essential for measuring the air content in freshly mixed concrete, affecting its durability and quality.
Explanation:
The ASTM standard that details the volumetric method for air content determination is ASTM C173 / C173M. This method is specifically known as the "Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method." It's widely used in the field of civil engineering, particularly in concrete technology, to measure the amount of air trapped in freshly mixed concrete. The air content of concrete is a crucial parameter as it affects the durability and the quality of the concrete. The volumetric method involves filling a calibrated air-content testing container with concrete, sealing it, and then introducing pressurized air. The change in air pressure is then used to calculate the volume of air in the mix.