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The ASTM C185 standard, titled "Standard Test Method for Air Content of Hydraulic Cement Mortar," provides guidelines and procedures for determining the air content of hydraulic cement mortar. This test is important for assessing the air-void system in mortar, which impacts its workability, durability, and resistance to freeze-thaw cycles.
ASTM C185 outlines the testing method using a pressure meter or pressure vessel to measure the volume of air voids in the mortar sample. The air content is calculated based on the pressure change caused by compressing the mortar.
Products associated with ASTM C185 include hydraulic cement mortar samples, a pressure meter or pressure vessel, and a compressor or pressure source.
By following the ASTM C185 standard and utilizing associated products, engineers, contractors, and testing laboratories can accurately determine the air content of hydraulic cement mortar. This information helps ensure proper mix design, workability, and performance of mortar in construction applications.