ASTM C642-21 PDF Download

ASTM C642-21 is a standard test method that outlines procedures for determining the density, absorption, and voids in hardened concrete. The scope of this test method is to provide a standardized methodology for evaluating these properties in order to assess the quality and performance of concrete structures.

The test involves determining the density of the hardened concrete sample, which is a measure of its mass per unit volume. This information is important for determining the strength and durability of the concrete.

The test also measures the percent absorption of the concrete, which is the amount of water that the concrete can absorb. This property is important for evaluating the resistance of the concrete to water penetration and the potential for deterioration.

Lastly, the test determines the percent voids in the hardened concrete, which refers to the volume of air voids within the concrete. This property is important for understanding the overall quality and workability of the concrete.

It is important to note that this test method includes explanatory notes and footnotes that provide additional information, but these notes should not be considered as requirements of the standard.