Standard Historical Last Updated: Sep 27, 2023 Track Document
ASTM A881/A881M-16a

Standard Specification for Steel Wire, Indented, Low-Relaxation for Prestressed Concrete

Standard Specification for Steel Wire, Indented, Low-Relaxation for Prestressed Concrete A0881_A0881M-16A ASTM|A0881_A0881M-16A|en-US Standard Specification for Steel Wire, Indented, Low-Relaxation for Prestressed Concrete Standard new BOS Vol. 01.04 Committee A01
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Abstract

This specification covers uncoated, deformed, stress-relieved, and low-relaxation wire for use as prestressed tendons in concrete railroad ties. Deformed wires with nominal diameters shall be supplied in coils and shall conform to specified values of breaking strength requirements. The relaxation losses of normal stress-relieved and low-relaxation stress-relieved wires should not exceed the specified limits. The two acceptable types of deformed wire shall have specific dimensions of deformations, where the depth of indent shall be the average depth of six or more random indents measured at maximum depth. The material shall be tested on and shall conform to specified values of the following mechanical properties: breaking strength, load at 1% extension, elongation, bending, and relaxation.

Scope

1.1 This specification covers indented, low-relaxation steel wire for use in prestressed concrete.

1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the specification.

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Details
Book of Standards Volume: 01.04
Developed by Subcommittee: A01.05
Pages: 4
DOI: 10.1520/A0881_A0881M-16A
ICS Code: 77.140.15