AASHTO M275 – Standard Specification for High-Strength Steel Bars for Prestressed Concrete
This specification covers Type I and Type II high-strength steel bars intended for use in prestressed concrete construction or in prestressed ground anchors.
Bars are of a minimum ultimate tensile strength level of 1035 MPa [150,000 psi].
Two types of bars are provided:
- Type I bar has a plain surface
- Type II bar has surface deformations.
high-strength steel bars; prestressed concrete; deformed bars; plain bars; prestressed ground anchors