AASHTO T 357-15 (2019) PDF Download

The AASHTO T 357-15 (2019) standard provides guidance on the evaluation of chloride penetration resistance in concrete. The test method focuses on non-steady-state migration experiments, allowing for a rapid assessment of the material's durability.

The standard outlines the procedure to be followed during the test, which involves subjecting concrete specimens to an electrical field. This induces the migration of chloride ions through the material, mimicking real-world conditions. The test results provide valuable information on the potential for chloride penetration and subsequent corrosion of reinforcing steel within the concrete.

By utilizing the rapid migration procedure described in this standard, engineers and construction professionals can evaluate the effectiveness of concrete mixes and additives in preventing chloride ingress. This information is crucial for designing durable structures, especially in environments with high exposure to chloride ions, such as coastal areas or areas subjected to deicing salts.