ASTM C457/C457M-23a PDF

Overview

ASTM C457/C457M-23a is the internationally recognized standard test method for the microscopical determination of air-void parameters in hardened concrete. Maintained by ASTM Committee C09 on Concrete and Concrete Aggregates, this test method is fundamental for assessing the air-void system in hardened concrete specimens. Understanding air-void characteristics is crucial for evaluating the durability of concrete, especially its resistance to - an essential property for concrete used in cold climates.