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Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds (Includes all amendments And changes 2/23/2016).
Automatische name übersetzung:
Standard Test Method for Druckfestigkeit des Betons Zylinder in Platz in zylindrische Formen gegossen
NORM herausgegeben am 15.12.2010
Bezeichnung normen: ASTM C873/C873M-10a
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 15.12.2010
SKU: NS-15405
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
compressive strength, concrete, cylinder molds , in-place strength, Compression testing--cement/concrete, Concrete test specimens, Cylindrical concrete specimens, ICS Number Code 91.100.30 (Concrete and concrete products)
Significance and Use | ||||||||||||
Cast-in-place cylinder strength relates to the strength of concrete in the structure due to the similarity of curing conditions because the cylinder is cured within the slab. However, due to differences in moisture condition, degree of consolidation, specimen size, and length-diameter ratio, there is not a unique relationship between the strength of cast-in-place cylinders and cores of the same age. When cores can be drilled undamaged and tested in the same moisture condition as the cast-in-place cylinders, the strength of the cylinders can be expected to be on average 10 % higher than the cores at ages up to 91 days for specimens of the same size and length-diameter ratio. Strength of cast-in-place cylinders may be used for various purposes, such as estimating the load-bearing capacity of slabs, determining the time of form and shore removal, and determining the effectiveness of curing and protection. |
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1. Scope | ||||||||||||
1.1 This test method covers the determination of strength of cylindrical concrete specimens that have been molded in place using special molds attached to formwork. This test method is limited to use in slabs where the depth of concrete is from 125 to 300 mm [5 to 12 in.]. 1.2 Units—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. 1.3 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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (WarningFresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. ) |
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2. Referenced Documents | ||||||||||||
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Historisch
1.7.2010
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1.12.2013
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15.12.2013
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1.4.2013
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15.6.2010
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15.6.2010
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