AASHTO T 285-89 (2019) PDF Download

AASHTO T 285-89 (2019) is a standard method of testing the bend properties of bars used for concrete reinforcement. The test is designed to assess the ductility of these bars, which is a crucial factor in determining their structural integrity and performance in concrete structures. The standard provides detailed procedures and guidelines for conducting the bend test, ensuring consistency and accuracy in the results obtained.

The bend test involves subjecting a specimen of the bar to a specified degree of bending, usually around a mandrel. The test evaluates the ability of the bar to withstand deformation without fracturing or significant damage. The standard specifies the dimensions and tolerances for the mandrel, as well as the number of bends and the radius of curvature required in the test.

By conducting the bend test prescribed in AASHTO T 285-89 (2019), engineers and construction professionals can determine whether the bars meet the specified ductility requirements for use in concrete reinforcement. This information is crucial for ensuring the safety and durability of concrete structures, as bars with inadequate ductility may be prone to failure under certain loading conditions.