ASTM A1034/A1034M-24

Standard Specification for Mechanical Splices for Steel Reinforcing Bars

SIGNIFICANCE AND USE
5.1 Significance:  
5.1.1 The bar-splice assembly test specimen shall closely represent the mechanical splice used in practice. The behavior of the bar-splice assembly embedded in concrete, however, may differ from its behavior during testing where it is not embedded in concrete.  
5.2 Usefulness:  
5.2.1 Testing of mechanical splices for reinforcing bars shall establish the behavior of the bar-splice assembly under the loading conditions described herein for the various test methods to determine the acceptability of the mechanical splice for use in reinforced concrete structural members under specific design criteria.  
5.3 Interpretation of Test Results:  
5.3.1 Similar or better performance of mechanical splices installed in structural members shall be expected only if materials and methods of assembly are similar to the materials and methods used in the tests.
SCOPE
1.1 General—This specification covers the qualification requirements and test methods of mechanical splices for reinforcing bars. Qualification requirements are located in Annex A1. The various tests herein described can be specified in total or individually.  
1.2 The test methods herein described are applicable to any type of mechanical splice manufactured to join steel reinforcing bars of any grade (specified minimum yield strength), uncoated or coated.
Note 1: Various code-writing bodies specify various parameters, such as test loads, number of cycles and test temperature, for testing.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Dec-2023
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.05 - Steel Reinforcement

Relations

• Replaces: ASTM A1034/A1034M-23 - Standard Test Methods for Testing Mechanical Splices for Steel Reinforcing Bars
• Effective Date: 01-Jan-2024

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: A1034/A1034M − 24
Standard Specification for
1
Mechanical Splices for Steel Reinforcing Bars
This standard is issued under the fixed designation A1034/A1034M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* A706 Specification for Deformed and Plain Low-Alloy Steel
Bars for Concrete Reinforcement
1.1 General—This specification covers the qualification re-
E4 Practices for Force Calibration and Verification of Test-
quirements and test methods of mechanical splices for rein-
ing Machines
forcing bars. Qualification requirements are located in Annex
E8/E8M Test Methods for Tension Testing of Metallic Ma-
A1. The various tests herein described can be specified in total
terials
or individually.
E9 Test Methods of Compression Testing of Metallic Mate-
1.2 The test methods herein described are applicable to any
rials at Room Temperature
type of mechanical splice manufactured to join steel reinforc-
E29 Practice for Using Significant Digits in Test Data to
ing bars of any grade (specified minimum yield strength),
Determine Conformance with Specifications
uncoated or coated.
E83 Practice for Verification and Classification of Exten-
NOTE 1—Various code-writing bodies specify various parameters, such
someter Systems
as test loads, number of cycles and test temperature, for testing.
E466 Practice for Conducting Force Controlled Constant
1.3 The values stated in either SI units or inch-pound units
Amplitude Axial Fatigue Tests of Metallic Materials
are to be regarded separately as standard. The values stated in
E467 Practice for Verification of Constant Amplitude Dy-
each system may not be exact equivalents; therefore, each
namic Forces in an Axial Fatigue Testing System
system shall be used independently of the other. Combining
3. Terminology
values from the two systems may result in non-conformance
with the standard.
3.1 Definitions of Terms Specific to This Standard:
3.1.1 bar-splice assembly, n—an assembled specimen con-
1.4 This standard does not purport to address all of the
sisting of two reinforcing bars connected with a mechanical
safety concerns, if any, associated with its use. It is the
splice.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3.1.2 clip gauge, n—an electrical device used to measure
mine the applicability of regulatory limitations prior to use.
small displacements in test specimens whose voltage output is
1.5 This international standard was developed in accor-
convertible into strain.
dance with internationally recognized principles on standard-
3.1.3 coupler, n—threaded device for joining reinforcing
ization established in the Decision on Principles for the
bars for the purpose of providing transfer of either axial
Development of International Standards, Guides and Recom-
compression or axial tension or both from one bar to the other.
mendations issued by the World Trade Organization Technical
3.1.4 coupling sleeve, n—non-threaded device for joining
Barriers to Trade (TBT) Committee.
reinforcing bars for the purpose of providing transfer of either
axial compression or axial tension or both from one bar to the
2. Referenced Documents
2 other.
2.1 ASTM Standards:
3.1.5 data acquisition system, n—a computer based data
A370 Test Methods and Definitions for Mechanical Testing
logging system to record the output of electrical transducers
of Steel Products
reporting load, strain or displacement.
1 3.1.6 differential elongation, n—the difference between the
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and are the direct responsibility of Subcommittee
total movement measured on the splice specimen from zero
A01.05 on Steel Reinforcement.
load to a predetermined test load and the total movement
Current edition approved Jan. 1, 2024. Published January 2024. Originally
measured on an unspliced bar specimen under the same
approved in 2004. Last previous edition approved in 2023 as A1034/A1034M – 23.
predetermined load.
DOI: 10.1520/A1034_A1034M-24.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1.7 linear variable differential transformer (LVDT), n—an
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
electrical device used to measure displacements, whose voltage
Standards volume information, refer to the standard’s Document Summary page on
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A1034/A1034M − 23 A1034/A1034M − 24
Standard Test Methods Specification for
1
Testing Mechanical Splices for Steel Reinforcing Bars
This standard is issued under the fixed designation A1034/A1034M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 These test methods cover the testing of mechanical splices for reinforcing bars. The various tests herein described can be
specified in total or individually.
1.2 The test methods herein described are applicable to any type of mechanical splice manufactured to join steel reinforcing bars
of any grade (specified minimum yield strength), uncoated or coated.
1.3 This standard describes only the methods for testing mechanical splices for steel reinforcing bars, but does not quantify the
parameters for testing nor acceptance criteria, which must be specified.
NOTE 1—Various code-writing bodies specify various parameters, such as test loads, number of cycles and test temperature, for testing.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
E4 Practices for Force Calibration and Verification of Testing Machines
E8/E8M Test Methods for Tension Testing of Metallic Materials
E9 Test Methods of Compression Testing of Metallic Materials at Room Temperature
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E83 Practice for Verification and Classification of Extensometer Systems
E466 Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials
1
These test methods are This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and are the direct responsibility
of Subcommittee A01.05 on Steel Reinforcement.
Current edition approved July 1, 2023Jan. 1, 2024. Published July 2023January 2024. Originally approved in 2004. Last previous edition approved in 20152023 as
A1034/A1034M – 10a (2015).A1034/A1034M – 23. DOI: 10.1520/A1034_A1034M-23.10.1520/A1034_A1034M-24.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A1034/A1034M − 24
E467 Practice for Verification of Constant Amplitude Dynamic Forces in an Axial Fatigue Testing System
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 bar-splice assembly, n—an assembled specimen consisting of two reinforcing bars connected with a mechanical splice.
3.1.2 clip gage, n—an electrical device used to measure small displacements in test specimens whose voltage output is convertible
into strain.
3.1.3 coupler, n—threaded device for joining reinforcing bars for the purpose of providing transfer of either axial compression or
axial tension or both from one bar to the other.
3.1.4 coupling sleeve, n—non-threaded device for joining reinforcing bars for the purpose of providing transfer of either axial
compression or axial tension or both from one bar to the other.
...