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ASTM A767/A767M-19
Standard Specification for Zinc-Coated (Galvanized) Steel Bars for Concrete Reinforcement
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NORM herausgegeben am 1.5.2019
Informationen über die Norm:
Bezeichnung normen: ASTM A767/A767M-19
Ausgabedatum normen: 1.5.2019
SKU: NS-950367
Zahl der Seiten: 6
Gewicht ca.: 18 g (0.04 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM A767/A767M-19 :
This specification covers steel reinforcing bars with protective zinc coatings applied by dipping the properly prepared reinforcing bars into a molten bath of zinc. Galvanization shall be used to prepare reinforcing bars. The galvanizer shall be permitted to subject the newly coated steel reinforcing bars to air or steam wiping to remove excess zinc from the bars. The mass of zinc coating shall conform to specified requirements. The mass of the coating shall be determined by magnetic thickness gage measurements. Stripping method, weighing before and after galvanizing, and microscopy method shall be used to referee the results obtained by magnetic thickness measurements. A retest shall be provided if the average zinc coating mass fails to meet the requirements. The galvanized coating shall be chromate treated.
Keywords:
corrosion resistance, galvanizing, steel reinforcing bars, zinc-coated,, ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
Ergänzende Informationen
| 1. Scope | ||||||||||||||||||||
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1.1 This specification covers steel reinforcing bars with protective zinc coatings applied by immersing the properly prepared reinforcing bars into a molten bath of zinc. Note 1: The galvanizer is identified throughout this
specification as the manufacturer.
1.2 Guidelines for construction practices at the job-site are presented in Appendix X1. 1.3 Guidelines for use of zinc-coated (galvanized) reinforcing bars with non-galvanized steel forms are presented in Appendix X2. 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 A767) or SI units (as Specification A767M). 1.6 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. 1.7 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. |
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