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ASTM C138/C138M-09
Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
Automaticky preložený názov:
Štandardná skúšobná metóda pre hustoty ( Unit Weight ) , Výnos , a Air obsah ( gravimetrická ) z betónu
NORMA vydaná dňa 1.6.2009
Informácie o norme:
Označenie normy: ASTM C138/C138M-09
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.6.2009
Kód tovaru: NS-10939
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM C138/C138M-09 :
Keywords:
air content, cement content, concrete, relative yield, unit weight, yield, Air content--concrete, Cement content (of concrete), Concrete, Density--concrete, Gravimetric determination, Unit weight, Weight--concrete/aggregates, Yield, ICS Number Code 91.100.30 (Concrete and concrete products)
Doplňujúce informácie
| 1. Scope | ||||||||||||||||
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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. Note 1—Unit weight was the previous terminology used to describe the property determined by this test method, which is mass per unit volume. 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. |
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| 2. Referenced Documents | ||||||||||||||||
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