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ASTM A944-22
Standard Test Method for Comparing Bond Strength of Steel Reinforcing Bars to Concrete Using Beam-End Specimens
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NORM herausgegeben am 1.9.2022
Informationen über die Norm:
Bezeichnung normen: ASTM A944-22
Ausgabedatum normen: 1.9.2022
SKU: NS-1088672
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM A944-22 :
This test method deals with the standard procedures for establishing the relative bond strength of steel reinforcing bars in concrete using beam-end specimens. This test method shall determine the effects of surface preparation or condition (such as bar coatings) on the bond strength of deformed steel reinforcing bars to concrete. The bond strengths obtained using this test method shall not be directly applicable to the design of reinforced concrete members. The beam-end test specimen shall be fabricated by casting, and conditioned by curing prior to tensile load test. The test system shall consist of the loading system, compression reaction plate, and bar displacement measurement device.
Keywords:
beam-end test, coatings, concrete bond, steel reinforcing bars ,, ICS Number Code 91.080.13 (Steel structures)
Ergänzende Informationen
| 1. Scope | ||||||||
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1.1?This test method describes procedures to establish the relative bond strength of steel reinforcing bars in concrete. 1.2?This test method is intended to determine the effects of surface preparation or condition (such as bar coatings) on the bond strength of deformed steel reinforcing bars (of sizes ranging from No. 3 to No. 11 [No. 10 to No. 36]) to concrete. 1.3?The bond strengths obtained using this test method are not directly applicable to the design of reinforced concrete members. Note 1:?The bond strengths obtained using this test method are
generally higher than obtained in development or splice tests using
beams with the same embedment lengths. The results obtained using
this test method should only be used for comparisons with results
for other reinforcing bars tested using this method.
1.4?The values stated in inch-pound units are to be regarded as standard. The values given in brackets are mathematical conversions to SI units that are provided for information only and are not considered 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. |
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