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ASTM C138/C138M-13a
Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete (Includes all amendments And changes 9/3/2014).
Automaticky přeložený název:
Standardní zkušební metoda pro hustoty ( Unit Weight ) , Výnos , a Air obsah (gravimetrická ) z betonu
NORMA vydána dne 1.10.2013
Informace o normě:
Označení normy: ASTM C138/C138M-13a
Poznámka: NEPLATNÁ
Datum vydání normy: 1.10.2013
Kód zboží: NS-10946
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM C138/C138M-13a :
Keywords:
air content, cement content, concrete, relative yield, unit weight, yield, ICS Number Code 91.100.30 (Concrete and concrete products)
Doplňující informace
| 1. Scope | ||||||||||||||||
|
1.1 This test method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and air content of the concrete. Yield is defined as the volume of concrete produced from a mixture of known quantities of the component materials. 1.2 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 The text of this test method
references notes and footnotes that provide explanatory
information. These notes and footnotes (excluding those in tables)
shall not be considered as requirements of this test method.
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 and health practices and determine
the applicability of regulatory limitations prior to use.
(
Standard Test Method for Density and
Relative Density of Hydraulic Cement Standard Practice for Making and Curing
Concrete Test Specimens in the Field (Includes all amendments and
changes 3/3/2026). Standard Test Method for Slump of
Concrete (Includes all amendments and changes 3/17/2026). Standard Specification for Portland
Cement Standard Practice for Sampling Freshly
Mixed Concrete Standard Test Method for Air Content of
Freshly Mixed Concrete by the Pressure Method Standard Test Method for Bulk Density
(“Unit Weight”) and Voids in Aggregate Standard Test Method for Air Content of
Freshly Mixed Concrete by the Volumetric Method |
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