STP1180: Laboratory Study of the Corrosion of Steel Studs and Screws Used in Masonry Walls

    Kudder, RJ
    Principal, Raths, Raths and Johnson, Inc., Willowbrook, Illinois

    Slater, JE
    Principal, Invetech, Inc. Engineering and Materials Consultants, Houston, Texas

    Pages: 14    Published: Jan 1993


    Abstract

    Steel-stud/brick-veneer walls utilizes metal studs as the backup for brick masonry veneers. Screws are used to secure a tie or anchor to the stud. This system is unique in masonry construction because the engagement of the threaded shank of the screw into a cold-formed steel stud is relied upon to laterally secure the exterior masonry wythe. The generally successful use for the traditional cavity wall ties and anchors mays not necessarily apply to steel-stud/brick-veneer walls because of this reliance on the screw threads. The environment in a masonry cavity may support corrosion. The effects of corrosion on the load capacity of the screw is a concern associated with this masonry system. This paper discusses an laboratory study of the tensile capacity of screws in metal studs, and the change in capacity over time when these metals are in a warm, humid environment.

    Keywords:

    brick veneer, corrosion tests, corrosion, galvanizing, pull-out tests, screws, steel studs


    Paper ID: STP19613S

    Committee/Subcommittee: C15.02

    DOI: 10.1520/STP19613S


    CrossRef ASTM International is a member of CrossRef.