ASTM C426-22 PDF Download

The ASTM C426-22 standard provides a standardized procedure for determining the linear drying shrinkage of concrete masonry or related concrete units. This test method is designed to be used under specified accelerated drying conditions.

The scope of this standard emphasizes the importance of conducting routine tests to measure the drying shrinkage of concrete masonry units. It is crucial to understand the amount of shrinkage that occurs in these units during drying to ensure their structural integrity and performance over time.

This test method includes references to notes and footnotes that offer additional explanatory information. However, it is important to note that these notes and footnotes, excluding those in tables and figures, should not be considered as requirements of the standard.