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ASTM A882/A882M-20

(Specification)

Standard Specification for Filled Epoxy-Coated Seven-Wire Steel Prestressing Strand

Standard Specification for Filled Epoxy-Coated Seven-Wire Steel Prestressing Strand

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 seven-wire steel prestressing strand with protective fusion-bonded epoxy powder coating applied by the electrostatic deposition method or other suitable method, 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 A supplementary requirement (S1) is provided for use where bond strength testing of 0.600-in. [15.24-mm] diameter grade 270 [1860] epoxy-coated strand for applications in prestressed ground anchors is required by the purchaser. The supplementary requirement applies only when specified in the purchase order or contract.  
1.3 Requirements for epoxy powder coatings are contained in Annex A1.  
1.4 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables) shall not be considered as requirements of the specification.  
1.5 This specification is applicable for orders in either inch-pound units (as Specification A882) or SI units [as Specification A882M].  
1.6 The values stated in either SI units or inch-pound 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 the specification.  
1.7 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
29-Feb-2020
ICS
25.220.60 - Organic coatings
77.140.65 - Steel wire, wire ropes and link chains
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.05 - Steel Reinforcement
Current Stage
Ref Project

Relations

Refers
ASTM A1061/A1061M-20 - Standard Test Methods for Testing Multi-Wire Steel Prestressing Strand
Effective Date
01-May-2020

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ASTM A882/A882M-20 - Standard Specification for Filled Epoxy-Coated Seven-Wire Steel Prestressing StrandASTM A882/A882M-20 - Standard Specification for Filled Epoxy-Coated Seven-Wire Steel Prestressing Strand
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ASTM A882/A882M-20 - Standard Specification for Filled Epoxy-Coated Seven-Wire Steel Prestressing Strand
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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:A882/A882M −20
Standard Specification for
1
Filled Epoxy-Coated Seven-Wire Steel Prestressing 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 Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification covers seven-wire steel prestressing
Barriers to Trade (TBT) Committee.
strand with protective fusion-bonded epoxy powder coating
appliedbytheelectrostaticdepositionmethodorothersuitable
2. Referenced Documents
method, with the interstices of the seven wires filled with
2
epoxy to minimize migration of corrosive media, either by 2.1 ASTM Standards:
A416/A416M Specification for Low-Relaxation, Seven-
capillary action or other hydrostatic forces.
Wire Steel Strand for Prestressed Concrete
NOTE1—Themanufacturerasidentifiedthroughoutthisspecificationis
A981/A981MTestMethodforEvaluatingBondStrengthfor
the coating applicator.
0.600-in. [15.24-mm] Diameter Steel Prestressing Strand,
1.2 A supplementary requirement (S1) is provided for use
Grade 270 [1860], Uncoated, Used in Prestressed Ground
where bond strength testing of 0.600-in. [15.24-mm] diameter
Anchors
grade 270 [1860] epoxy-coated strand for applications in
A1061/A1061MTest Methods for Testing Multi-Wire Steel
prestressed ground anchors is required by the purchaser. The
Prestressing Strand
supplementary requirement applies only when specified in the
B117Practice for Operating Salt Spray (Fog) Apparatus
purchase order or contract.
D968Test Methods for Abrasion Resistance of Organic
1.3 Requirements for epoxy powder coatings are contained
Coatings by Falling Abrasive
in Annex A1.
D7091Practice for Nondestructive Measurement of Dry
Film Thickness of Nonmagnetic Coatings Applied to
1.4 The text of this specification references notes and
Ferrous Metals and Nonmagnetic, Nonconductive Coat-
footnotes which provide explanatory material.These notes and
ings Applied to Non-Ferrous Metals
footnotes (excluding those in tables) shall not be considered as
G14TestMethodforImpactResistanceofPipelineCoatings
requirements of the specification.
(Falling Weight Test)
1.5 This specification is applicable for orders in either
G20Test Method for Chemical Resistance of Pipeline Coat-
inch-pound units (as Specification A882) or SI units [as
ings
Specification A882M].
3
2.2 Federal Highway Administration Report:
1.6 The values stated in either SI units or inch-pound units
FHWA-RD-74-18Nonmetallic Coatings for Concrete Rein-
are to be regarded separately as standard. Within the text, the
forcing Bars (February 1974)
SI units are shown in brackets. The values stated in each
4
2.3 SSPC Specification:
system may not be exact equivalents; therefore, each system
SSPC-PA2Procedure for Determining Conformance to Dry
shall be used independently of the other. Combining values
Coating Thickness Requirements
from the two systems may result in non-conformance with the
5
2.4 U.S. Military Standard:
specification.
MIL-STD-129Marking for Shipment and Storage
1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel, the ASTM website.
3
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee Available from National Technical Information Service (NTIS), 5285 Port
A01.05 on Steel Reinforcement. Royal Rd., Springfield, VA 22161, http://www.ntis.gov.
4
Current edition approved March 1, 2020. Published April 2020. Originally Available from Society for Protective Coatings (SSPC), 800 Trumbull Dr.,
approved in 1991. Last previous edition approved in 2004 as A882/A882M–04a Pittsburgh, PA 15205, http://www.sspc.org.
5
which was withdrawn January 2019 and reinstated in March 2020. DOI: 10.1520/ Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
A0882_A0882M-20. Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

...

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SCOPE
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4.1 The primary use of these test methods is testing to determine the specified mechanical properties of steel, stainless steel, and related alloy products for the evaluation of conformance of such products to a material specification under the jurisdiction of ASTM Committee A01 and its subcommittees as designated by a purchaser in a purchase order or contract.  
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SCOPE
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15  
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Annex A8  
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Annex A9  
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Annex A10  
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SCOPE
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SCOPE
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SCOPE
1.1 This specification2 covers a group of general requirements that, unless otherwise specified in the purchase order or in an individual specification, shall apply to rolled steel plate, sheet, and strip, under each of the following specifications issued by ASTM: Specifications A240/A240M, A263, A264, A265, A666, A693, A793, and A895.  
1.2 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product specification shall prevail. In the case of conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail. The purchase order requirements shall not take precedence if they, in any way, violate the requirements of the product specification or this specification; for example, by waiving a test requirement or by making a test requirement less stringent.  
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5.3 Information shall be evaluated in a flexible manner consistent with the needs of the authorizing program. This requires proper characterization of the current problem. For example, compounds may be ranked relative to the environmental criteria of the prospective alternatives, the replacement compound, and within bo...
SCOPE
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1.2.1 Energetic and other new/novel materials and compositions in all stages of research, development, test and evaluation.  
1.2.2 Environmental assessment, including:
1.2.2.1 Human and ecological effects of the unexploded energetics and ...

  • Guide
    9 pages
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  • Guide
    9 pages
    English language
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ASTM
ASTM D8042-18(2023)(Test Method)
Test Method for Shrinkage Temperature of Wet Blue and Wet White

SIGNIFICANCE AND USE
5.1 This test method is designed to determine the temperature at which the Wet Blue or Wet White specimen experiences shrinkage. In this test method, shrinkage occurs as a result of hydrothermal denaturation of the collagen protein molecules which make up the fiber structure of the Wet Blue or Wet White. The shrinkage temperature of Wet Blue or Wet White is influenced by many different factors, most of which appear to affect the number and nature of crosslinking interactions between adjacent polypeptide chains of the collagen protein molecules. The value of the shrinkage temperature of Wet Blue or Wet White is commonly used as an indicator of the type of tannage or the degree of tannage, or both, of that particular Wet Blue or Wet White (especially for the more hydrothermally stable tannages such as chrome tannage).
SCOPE
1.1 This test method covers the determination of the shrinkage temperature of all types of Wet Blue and Wet White. The heating medium is water when the shrinkage temperature is at or below 98 °C. The heating medium is a glycerine-water solution when the shrinkage temperature is above 98 °C.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.  
1.3 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.  
1.4 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.

  • Standard
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