Cookies
Potřebujeme váš souhlas k využití jednotlivých dat, aby se vám mimo jiné mohly ukazovat informace týkající se vašich zájmů. Souhlas udělíte kliknutím na tlačítko „OK“.
ASTM C311-11
Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete
Automaticky přeložený název:
Standardní zkušební metody pro odběr vzorků a testování popílku nebo přírodního pucolánů pro použití v Portland- cementárna betonu
NORMA vydána dne 1.4.2011
Informace o normě:
Označení normy: ASTM C311-11
Poznámka: NEPLATNÁ
Datum vydání normy: 1.4.2011
Kód zboží: NS-12917
Počet stran: 10
Přibližná hmotnost: 30 g (0.07 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM C311-11 :
Keywords:
fly ash, natural pozzolan, Portland cement concrete (PCC), Pozzolans, Strength--cement/concrete mixtures/applications, Alkalies content--cement, Calcined pozzolans, Concrete admixtures, Fineness, Fly ash and other pozzolans, ICS Number Code 91.100.30 (Concrete and concrete products)
Doplňující informace
| Significance and Use | ||||||||||||||||||||||||||||||||||||||||||||||||||
|
These test methods are used to develop data for comparison with the requirements of Specification C618. These test methods are based on standardized testing in the laboratory and are not intended to simulate job conditions. Strength Activity Index—The test for strength activity index is used to determine whether fly ash or natural pozzolan results in an acceptable level of strength development when used with hydraulic cement in concrete. Since the test is performed with mortar, the results may not provide a direct correlation of how the fly ash or natural pozzolan will contribute to strength in concrete. Chemical Tests— The chemical component determinations and the limits placed on each do not predict the performance of a fly ash or natural pozzolan with hydraulic cement in concrete, but collectively help describe composition and uniformity of the material. |
||||||||||||||||||||||||||||||||||||||||||||||||||
| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||
|
1.1 These test methods cover procedures for sampling and testing fly ash and raw or calcined pozzolans for use in portland-cement concrete. 1.2 The procedures appear in the
following order:
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only. 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. 1.5 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes (excluding those in tables) shall not be considered as requirements of this standard. |
||||||||||||||||||||||||||||||||||||||||||||||||||
| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||
Doporučujeme:
