AS 1313-1989

1 - AS 1313-1989 STEEL TENDONS FOR PRESTRESSED CONCRETE - COLD-WORKED HIGH-TENSILE ALLOY STEEL BARS FOR PRESTRESSED CONCRETE
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE.
6 - 2 REFERENCED DOCUMENTS.
6 - 3 DEFINITIONS.
6 - 3.1 Breaking force
6 - 3.2 Rib bar
6 - 3.3 Nominal diameter of rib bar
6 - 3.4 Length
6 - 3.5 Lot
6 - 3.6 Parent bar
6 - 3.7 Relaxation
6 - 3.8 Rolled threads
6 - 3.9 Yield force
6 - 4 BASE MATERIAL.
6 - 5 PROOF LOADING DURING MANUFACTURE.
6 - 6 QUALITY OF FINISHED BARS.
6 - 7 WELDS.
7 - 8 DIMENSIONS, MASS AND TOLERANCE.
7 - 9 ASSESSMENT OF COMPLIANCE.
7 - 10 TESTING.
7 - 10.1 Tensile properties.
7 - 10.2 Rolled thread testing.
7 - 10.3 Relaxation test.
7 - 11 RETESTS.
8 - 12 ROUNDING OF NUMBERS.
8 - 13 TEST CERTIFICATE.
8 - 14 MARKING.
8 - 15 PACKING.
9 - APPENDIX A - PURCHASING GUIDELINES
9 - A1 GENERAL.
9 - A2 INFORMATION TO BE SUPPLIED BY PURCHASER.
9 - A3 FACILITIES FOR TESTING.
9 - A4 INSPECTION.
10 - APPENDIX B - RELAXATION TEST
10 - B1 SCOPE.
10 - B2 PRINCIPLE.
10 - B3 TEST RIG.
10 - B4 TEST CONDITIONS.
10 - B5 PROCEDURE.
10 - B6 CALCULATION.
10 - B7 REPORT.

Specifies requirements for two grades of high-tensile steel bar, made from hot-rolled alloy steel bars by cold-working, intended for use in prestressed concrete and prestressed ground anchors.

This Standard specifies requirements for two grades of high-tensile steel bar, made from hot-rolled alloy steel bars by cold-working, intended for use in prestressed concrete and prestressed ground anchors.The two grades of bar are 'regular' and 'super'. Bars may be plain or ribbed.NOTE: Guidelines to purchasers on requirements that should be specified by the purchaser and those that should be agreed at the time of enquiry or order are given in Appendix A.