AASHTO T 161-21 PDF Download

AASHTO T 161-21 is a standard method of test that provides guidelines for evaluating the resistance of concrete to rapid freezing and thawing. The standard consists of two procedures: Procedure A involves subjecting concrete specimens to rapid freezing and thawing in water, while Procedure B involves rapid freezing in air followed by thawing in water. Both procedures aim to assess the impact of concrete properties on its resistance to specified freezing and thawing cycles.

It is important to note that this standard is not designed to provide a quantitative measure of the expected service life of a specific type of concrete. Instead, it focuses on analyzing the effects of variations in concrete properties on its resistance to freezing and thawing.