AASHTO T 188-05 (2021) PDF Download

The AASHTO T 188-05 (2021) standard is designed to assess the frost resistance of concrete that contains an air-entraining agent. The purpose of this method is to determine whether the cement is capable of producing concrete that can withstand freezing and thawing cycles without significant damage.

The standard provides guidelines on the procedures that should be followed to conduct the test. The test involves subjecting concrete specimens to a specified number of freezing and thawing cycles under controlled conditions. The specimens may consist of masonry blocks, cylinders, or beams, depending on the specific requirements.

By evaluating the effects of freezing and thawing on the specimens, the test can determine the performance of the air-entraining additions in promoting resistance to frost. This information is essential for engineers and contractors in selecting and specifying the appropriate cement for concrete construction projects in regions where freezing and thawing conditions are anticipated.