AASHTO T 188-05 (2017) PDF Download

The AASHTO T 188-05 (2017) standard outlines a procedure for assessing the frost resistance of concrete containing an air-entraining agent. The purpose of this method is to determine the ability of the cement to produce concrete that can withstand freezing and thawing cycles without significant deterioration.

The standard provides instructions on how to conduct the freezing and thawing test. The test involves subjecting concrete specimens to a specified number of freezing and thawing cycles, with each cycle consisting of submerging the specimens in a sodium chloride solution at a specific temperature for a specified duration, followed by thawing at room temperature. The specimens are visually examined after the test to evaluate any changes in appearance, such as cracking, scaling, or other forms of surface deterioration.

The AASHTO T 188-05 (2017) standard is an important tool in assessing the suitability of air-entraining additions in hydraulic cement for producing concrete that can withstand freeze-thaw cycles without significant damage.