ASTM A882/A882M-04a(2010)
(Specification)Standard Specification for Filled Epoxy-Coated Seven-Wire Prestressing Steel Strand (Withdrawn 2019)
Standard Specification for Filled Epoxy-Coated Seven-Wire Prestressing Steel Strand (Withdrawn 2019)
ABSTRACT
This specification covers filled epoxy-coated seven-wire prestressing steel strands with protective fusion-bonded epoxy coating applied by the electrostatic deposition method. This specification also covers relaxation loss limits for filled epoxy coated strands. Prestressing steel strands shall be free of contaminants such as oil, grease, or paint. Steel strand surfaces shall be cleaned to meet coating requirements, such as coating thickness, coating continuity, coating adhesion, coating composition, and coating bond with concrete or grout. Smooth or grit-impregnated coating shall be applied by the electrostatic deposition method or other method that will meet the coating requirements. Pullout tests shall be performed three times annually or maybe repeated if the coating failed to meet the requirements.
SCOPE
1.1 This specification covers ASTM Specification A416/A416M low-relaxation Grade 250 and Grade 270 seven-wire prestressing steel strand with protective fusion-bonded epoxy coating applied by the electrostatic deposition method or other method that will meet the coating requirements in Section 8, and, except as allowed by 1.2, with the interstices of the seven wires filled with epoxy to minimize migration of corrosive media, either by capillary action or other hydrostatic forces.
Note 1—The manufacturer as identified throughout this specification is the coating applicator.
1.2 Upon special request by the purchaser, the interstices are left unfilled.
Note 2—Unfilled strand can corrode from the inside and its application for prestressing tendons in concrete or for rock and soil anchors is not recommended.
1.3 This specification is applicable for orders in either inch-pound units (as Specification A882) or SI units [as Specification A882M].
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.
WITHDRAWN RATIONALE
This specification covers ASTM Specification A416/A416M1 low-relaxation Grade 250 and Grade 270 seven-wire prestressing steel strand with protective fusion-bonded epoxy coating applied by the electrostatic deposition method or other method that will meet the coating requirements in Section 8, and, except as allowed by 1.2, with the interstices of the seven wires filled with epoxy to minimize migration of corrosive media, either by capillary action or other hydrostatic forces.
Formerly under the jurisdiction of Committee A01 on Steel, Stainless Steel and Related Alloys, this specification was withdrawn in January 2019 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
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Designation:A882/A882M −04a (Reapproved 2010)
Standard Specification for
1
Filled Epoxy-Coated Seven-Wire Prestressing Steel Strand
This standard is issued under the fixed designationA882/A882M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
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1.1 This specification covers ASTM Specification A416/ 2.1 ASTM Standards:
A416M low-relaxation Grade 250 and Grade 270 seven-wire A370Test Methods and Definitions for Mechanical Testing
prestressing steel strand with protective fusion-bonded epoxy of Steel Products
coating applied by the electrostatic deposition method or other A416/A416M Specification for Low-Relaxation, Seven-
method that will meet the coating requirements in Section 8, Wire Steel Strand for Prestressed Concrete
and, except as allowed by 1.2, with the interstices of the seven B117Practice for Operating Salt Spray (Fog) Apparatus
wires filled with epoxy to minimize migration of corrosive D968Test Methods for Abrasion Resistance of Organic
media, either by capillary action or other hydrostatic forces. Coatings by Falling Abrasive
G12Test Method for Nondestructive Measurement of Film
NOTE1—Themanufacturerasidentifiedthroughoutthisspecificationis
Thickness of Pipeline Coatings on Steel
the coating applicator.
G14TestMethodforImpactResistanceofPipelineCoatings
1.2 Uponspecialrequestbythepurchaser,theintersticesare
(Falling Weight Test)
left unfilled.
G20Test Method for Chemical Resistance of Pipeline Coat-
NOTE2—Unfilledstrandcancorrodefromtheinsideanditsapplication
ings
for prestressing tendons in concrete or for rock and soil anchors is not
2.2 Federal Highway Administration Report:
recommended.
FHWA-RD-74-18Nonmetallic Coatings for Concrete Rein-
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1.3 This specification is applicable for orders in either
forcing Bars (February 1974)
inch-pound units (as Specification A882) or SI units [as
3. Terminology
Specification A882M].
3.1 Definitions of Terms Specific to This Standard:
1.4 The values stated in either SI units or inch-pound units
3.1.1 disbonding—loss of adhesion between the fusion-
are to be regarded separately as standard. The values stated in
bonded epoxy coating and the steel strand wires.
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
3.1.2 fusion-bonded epoxy coating—a product containing
values from the two systems may result in non-conformance pigments, thermo-setting epoxy resins, cross-linking agents,
with the standard.
and other substances, which is applied in the form of powder
onto a clean, heated metallic substrate and fuses to form a
1.5 This international standard was developed in accor-
continuous barrier coating.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the 3.1.3 grit—inert particles impregnated on the outer surface
Development of International Standards, Guides and Recom-
of the epoxy coating for improving bond with cement grout.
mendations issued by the World Trade Organization Technical
3.1.4 holiday—a discontinuity in the coating that is not
Barriers to Trade (TBT) Committee.
discernible to a person with normal or corrected vision.
1 2
This specification is under the jurisdiction ofASTM Committee A01 on Steel, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
A01.05 on Steel Reinforcement. Standards volume information, refer to the standard’s Document Summary page on
CurrenteditionapprovedMay1,2010.PublishedJuly2010.Originallyapproved the ASTM website.
3
in 1991. Last previous edition approved in 2004 as A882/A882M–04a. DOI: Available from National Technical Information Service (NTIS), 5285 Port
10.1520/A0882_A0882M-04AR10. Royal Rd., Springfield, VA 22161, http://www.ntis.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A882/A882M−04a (2010)
3.1.5 patching material—a liquid coating used to repair surface discernible to the unaided eye occurs. However, in no
damaged or uncoated areas. case shall application of the coating be delayed more than 10
min after cleaning, unless otherwise permitted by the pur-
4. Ordering Information
chaser.
4.1 The purchaser should specify:
7.2 The coating shall be applied by the electrostatic depo-
4.1.1 Diameter, grade, and type of uncoated strand in
sition method, or oth
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:A882/A882M–04a Designation: A882/A882M – 04a (Reapproved 2010)
Standard Specification for
1
Filled Epoxy-Coated Seven-Wire Prestressing Steel Strand
This standard is issued under the fixed designationA882/A882M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber 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 This specification covers ASTM Specification A416/A416M low-relaxation Grade 250 and Grade 270 seven-wire
prestressing steel strand with protective fusion-bonded epoxy coating applied by the electrostatic deposition method or other
method that will meet the coating requirements in Section 8, and, except as allowed by 1.2, with the interstices of the seven wires
filled with epoxy to minimize migration of corrosive media, either by capillary action or other hydrostatic forces.
NOTE 1—The manufacturer as identified throughout this specification is the coating applicator.
1.2 Upon special request by the purchaser, the interstices are left unfilled.
NOTE 2—Unfilled strand can corrode from the inside and its application for prestressing tendons in concrete or for rock and soil anchors is not
recommended.
1.3 This specification is applicable for orders in either inch-pound units (as Specification A882) or SI units [as Specification
A882M].
1.4The values stated in either inch-pound or SI units are to be regarded as standard. Within the test, the SI units are shown in
brackets. The values stated in each system must be used independently of the other. Combining values from the two systems may
result in nonconformance with this specification.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A416/A416M Specification for Steel Strand, Uncoated Seven-Wire for Prestressed Concrete
B117 Practice for Operating Salt Spray (Fog) Apparatus
D968 Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
G12 Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel
G14 Test Method for Impact Resistance of Pipeline Coatings (Falling Weight Test)
G20 Test Method for Chemical Resistance of Pipeline Coatings
2.2 Federal Highway Administration Report:
3
FHWA-RD-74-18 Nonmetallic Coatings for Concrete Reinforcing Bars (February 1974)
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 disbonding—loss of adhesion between the fusion-bonded epoxy coating and the steel strand wires.
3.1.2 fusion-bonded epoxy coating—aproductcontainingpigments,thermo-settingepoxyresins,cross-linkingagents,andother
substances, which is applied in the form of powder onto a clean, heated metallic substrate and fuses to form a continuous barrier
coating.
3.1.3 grit—inert particles impregnated on the outer surface of the epoxy coating for improving bond with cement grout.
1
ThisspecificationisunderthejurisdictionofASTMCommitteeA01onSteel,StainlessSteelandRelatedAlloysandisthedirectresponsibilityofSubcommitteeA01.05
on Steel Reinforcement.
Current edition approved MarchMay 1, 2004.2010. Published April 2004.July 2010. Originally approved in 1991. Last previous edition approved in 2004as
A882/A882M–04a. DOI: 10.1520/A0882_A0882M-04AR10.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from the National Technical Information Service (NTIS), 5285 Port Royal Rd., Springfield, VA 22161, http://www.ntis.gov.
*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.
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A882/A882M – 04a (2010)
3.1.4 holiday—a discontinuity in the coating that is not discernible to a person with normal or corrected vision.
3.1.5 patching material—a liquid coating used to repair damaged or uncoated areas.
4. Ordering Inform
...
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