CONTROL OF CRACKING IN SLABS REINFORCED WITH WELDED WIRE FABRIC

THE EXTENT OF CRACKING IN SLABS REINFORCED WITH SMOOTH WELDED WIRE FABRIC IS DETERMINED BY THE BOND AND ANCHORAGE PROPERTIES OF FABRIC AS WELL AS BY THE MAGNITUDE OF THE STEEL STRESS. TEST RESULTS SHOW THAT THE CRACK SPACING IS CONTROLLED PRIMARILY BY THE TRANSVERSE WIRE SPACING AND BY THE SIZE AND SPACING OF THE LONGITUDINAL WIRES. CRACK WIDTHS ARE DETERMINED BY THE CRACK SPACING AND STEEL STRESS AND TO SOME EXTENT BY THE TIME A LOAD IS APPLIED AND THE NUMBER OF REPETITIONS OF LOAD. CRACK CONTROL IS ACHIEVED BY LIMITING THE ALLOWABLE STEEL STRESSES AND THE TRANSVERSE WIRE SPACING. GENERALLY SPEAKING, THE USE OF SMOOTH WELDED WIRE FABRIC WITH A MAXIMUM TRANSVERSE WIRE SPACING OF 12 IN. AND A MAXIMUM SERVICE STRESS OF 40,000 PSI WILL CONTROL CRACKS WITHIN THE REQUIREMENTS OF THE "BUILDING CODE REQUIREMENTS FOR REINFORCED CONCRETE, ACI 318-63." /ACIJP/

  • Corporate Authors:

    American Concrete Institute

    38800 Country Club Drive
    Farmington Hills, MI  USA  48331
  • Authors:
    • Atlas, A
    • Siess, C P
    • Kesler, C E
  • Publication Date: 1968

Subject/Index Terms

Filing Info

  • Accession Number: 00213809
  • Record Type: Publication
  • Source Agency: Am Concrete Inst Journal & Proceedings
  • Report/Paper Numbers: Title No Sp 20-11
  • Files: TRIS
  • Created Date: Sep 28 1970 12:00AM