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Standard Practice for Making and Curing Concrete Test Specimens in the Field (Includes all amendments And changes 1/31/2019).
Name übersetzen
NORM herausgegeben am 1.8.2018
Bezeichnung normen: ASTM C31/C31M-18b
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.8.2018
SKU: NS-857411
Zahl der Seiten: 6
Gewicht ca.: 18 g (0.04 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
beams, casting samples, concrete, curing, cylinders, testing,, ICS Number Code 91.100.30 (Concrete and concrete products)
Significance and Use | ||||||||||||||||||||||||||||
4.1 This practice provides standardized requirements for making, curing, protecting, and transporting concrete test specimens under field conditions. 4.2 If the specimens are made and standard cured, as stipulated herein, the resulting strength test data when the specimens are tested are able to be used for the following purposes: 4.2.1 Acceptance testing for specified strength, 4.2.2 Checking adequacy of mixture proportions for strength, and 4.2.3 Quality control. 4.3 If the specimens are made and field cured, as stipulated herein, the resulting strength test data when the specimens are tested are able to be used for the following purposes: 4.3.1 Determination of whether a structure is capable of being put in service, 4.3.2 Comparison with test results of standard cured specimens or with test results from various in-place test methods, 4.3.3 Adequacy of curing and protection of concrete in the structure, or 4.3.4 Form or shoring removal time requirements. |
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1. Scope | ||||||||||||||||||||||||||||
1.1 This practice covers procedures for making and curing cylinder and beam specimens from representative samples of fresh concrete for a construction project. 1.2 The concrete used to make the molded specimens shall be sampled after all on-site adjustments have been made to the mixture proportions, including the addition of mix water and admixtures. This practice is not satisfactory for making specimens from concrete not having measurable slump or requiring other sizes or shapes of specimens. 1.3 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. 1.4 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. 1.5 The text of this standard references notes which provide explanatory material. These notes shall not be considered as requirements of the standard. 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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2. Referenced Documents | ||||||||||||||||||||||||||||
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