AASHTO M 204M/M 204-14 (2018) PDF
Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete (ASTM A 421/A 421M-10)
standard by American Association of State and Highway Transportation Officials, 2018
This specification covers two types of uncoated stress-relieved, round, high-carbon steel wire commonly used in prestressed linear concrete construction, as follows: Type BA wire is used for applications in which cold-end deformation is used for anchoring purposes (Button Anchorage), and Type WA wire is used for application in which the ends are anchored by wedges, and no cold-end deformation of the wire is involved (Wedge Anchorage).
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