AASHTO MP 30M/MP 30

Description / Abstract: This specification covers carbon-steel wire and welded wire reinforcement produced from hotrolled rod to be used for the reinforcement of concrete. The steel wire is cold-worked, drawn or rolled, plain (non-deformed, as-drawn, or galvanized), or deformed. Welded wire reinforcement is made from plain or deformed wire, or a combination of plain and deformed wire. Common wire sizes are given in Tables 9, 10, 11, and 12; actual wire sizes are not restricted to those shown in the tables.

Note 1—Welded wire for concrete reinforcement has been described by various terms: welded wire fabric (WWF), fabric, and mesh. The wire reinforcement industry prefers the term “welded wire reinforcement” (WWR) as being more representative of the range of products being manufactured. Therefore, the term “welded wire fabric” has been replaced with the term “welded wire reinforcement” in this specification and in related specifications.

This specification is applicable for orders in either SI units (MP 30M) or in inch-pound units (MP 30). The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets (except in Table 9 and Table 11). SI units and inch-pound units are not necessarily equivalent; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.