ASTM A184/A184M-19

Standard Specification for Welded Deformed Steel Bar Mats for Concrete Reinforcement

ABSTRACT
This specification covers the standard guide for welded deformed steel bar mats for concrete reinforcement. Mats should be capable of withstanding static load exerted perpendicular to the plane of the mat tending to separate the bars with no apparent loosening when applied to one intersection of the connected bars. Tension tests shall be performed on the specimen to determine the conformance to reference test materials. Also, test of connections against separation shall be performed on an assembled mat by placing blocks under a deformed bar in the upper layer and applying the prescribed load upon the bar in the lower layer.
SCOPE
1.1 This specification covers material in mat (or sheet) form fabricated from deformed steel bars to be used for the reinforcement of concrete. Mats are made from two layers of bars that are assembled by welding the intersections at right angles to each other.  
1.2 This specification is applicable for orders in either inch-pound units (as Specification A184) or SI units (as Specification A184M).  
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. 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 this specification.  
1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.  
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.

General Information

• Status: Published
• Publication Date: 31-Aug-2019
• ICS: 77.140.15 - Steels for reinforcement of concrete
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.05 - Steel Reinforcement

Relations

• Refers: ASTM A615/A615M-15 - Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
• Effective Date: 01-Apr-2015

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:A184/A184M −19
Standard Specification for
Welded Deformed Steel Bar Mats for Concrete
1
Reinforcement
This standard is issued under the fixed designationA184/A184M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers material in mat (or sheet) form
A615/A615M SpecificationforDeformedandPlainCarbon-
fabricated from deformed steel bars to be used for the
Steel Bars for Concrete Reinforcement
reinforcement of concrete. Mats are made from two layers of
A706/A706M Specification for Deformed and Plain Low-
bars that are assembled by welding the intersections at right
Alloy Steel Bars for Concrete Reinforcement
angles to each other.
3
2.2 AWS Standard:
1.2 This specification is applicable for orders in either
AWS D1.4/D1.4M Structural Welding Code – Steel Rein-
inch-pound units (as Specification A184) or SI units (as
forcing Bars
Specification A184M).
4
2.3 U.S. Military Standard:
1.3 The values stated in either inch-pound units or SI units
MIL-STD-129 Marking for Shipment and Storage
are to be regarded separately as standard. Within the text, the
4
2.4 U.S. Federal Standard:
SI units are shown in brackets. The values stated in each
Fed Std No. 123 Marketing for Shipments (Civil Agencies)
system may not be exact equivalents; therefore, each system
shall be used independently of the other. Combining values
3. Ordering Information
from the two systems may result in non-conformance with this
specification. 3.1 Orders for welded steel bar mats for concrete reinforce-
ment under this specification shall contain the following
1.4 The text of this specification references notes and
information:
footnotes that provide explanatory material. These notes and
3.1.1 Quantity of mats,
footnotes (excluding those in tables and figures) shall not be
3.1.2 Bar designation number (size), length, and spacing of
considered as requirements of the specification.
bars in each direction,
1.5 This standard does not purport to address all of the 3.1.3 Grade required (Grade 40 or 60) [280 or 420],
safety concerns, if any, associated with its use. It is the
3.1.4 Type of steel (see Section 4.1), and
responsibility of the user of this standard to establish appro-
3.1.5 ASTM designation and year of issue.
priate safety, health, and environmental practices and deter-
3.2 Thepurchasershallhavetheoptiontospecifyadditional
mine the applicability of regulatory limitations prior to use.
requirements, including but not limited to, the following:
1.6 This international standard was developed in accor-
3.2.1 Requirements for inspection (10.1),
dance with internationally recognized principles on standard-
3.2.2 Packaging and special package marking requirements
ization established in the Decision on Principles for the
(Section 12), and
Development of International Standards, Guides and Recom-
3.2.3 Other special requirements, if any.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
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
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Standards volume information, refer to the standard’s Document Summary page on
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee the ASTM website.
3
A01.05 on Steel Reinforcement. Available from American Welding Society (AWS), 8669 NW 36 St., #130,
Current edition approved Sept. 1, 2019. Published September 2019. Originally Miami, FL 33166-6672, http://www.aws.org.
4
approved in 1936. Last previous edition approved in 2017 as A184/A184M – 17. Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
DOI: 10.1520/A0184_A0184M-19. Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
*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 ----------------------
A184/A184M−19
4. Materials and Manufacture 7.2 Width and Length Tolerances—The overall length or
width of the mats shall not be more than 1 in. [25 mm] greater
4.1 Deformed steel bars of Grades 40 [280] used in the
or
...

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: A184/A184M − 17 A184/A184M − 19
Standard Specification for
Welded Deformed Steel Bar Mats for Concrete
1
Reinforcement
This standard is issued under the fixed designation A184/A184M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers material in mat (or sheet) form fabricated from deformed steel bars to be used for the reinforcement
of concrete. Mats consist of are made from two layers of bars that are assembled by welding the intersections at right angles to
each other. Mats are assembled by welding at the intersections.
1.2 This specification is applicable for orders in either inch-pound units (as Specification A184) or SI units (as Specification
A184M).
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units
are shown in brackets. The values stated in each system aremay not be exact equivalents; therefore, each system mustshall be used
independently of the other. Combining values from the two systems may result in nonconformancenon-conformance with this
specification.
1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the specification.
1.5 This specificationstandard 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 specificationstandard 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:
A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A706/A706M Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement
3
2.2 AWS Standard:
AWS D1.4/D1.4M Structural Welding Code – Steel Reinforcing Bars
4
2.3 U.S. Military Standard:
MIL-STD-129 Marking for Shipment and Storage
4
2.4 U.S. Federal Standard:
Fed Std No. 123 Marketing for Shipments (Civil Agencies)
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.05
on Steel Reinforcement.
Current edition approved Sept. 1, 2017Sept. 1, 2019. Published September 2017September 2019. Originally approved in 1936. Last previous edition approved in 20112017
as A184/A184M – 06 (2011).A184/A184M – 17. DOI: 10.1520/A0184_A0184M-17.10.1520/A0184_A0184M-19.
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’sstandard’s Document Summary page on the ASTM website.
3
Available from American Welding Society (AWS), 8669 NW 36 St., #130, Miami, FL 33166-6672, http://www.aws.org.
4
Available from DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
*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 ----------------------
A184/A184M − 19
3. Ordering Information
3.1 Orders for welded steel bar mats for concrete reinforcement under this specification shall contain the following information:
3.1.1 Quantity of mats,
3.1.2 Bar designation number (size), length, and spacing of bars in each direction,
3.1.3 Grade required (Grade 40 or 60) [280 or 420],
3.1.4 Type of steel (see Section 4.1), and
3.1.5 ASTM designation A184/A184Mand year of issue.
NOTE 1—A typical ordering description is as follow
...