Cookies
Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
ASTM C1084-19
Standard Test Method for Portland-Cement Content of Hardened Hydraulic-Cement Concrete
NORMA vydaná dňa 15.12.2019
Informácie o norme:
Označenie normy: ASTM C1084-19
Dátum vydania normy: 15.12.2019
Kód tovaru: NS-981842
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM C1084-19 :
Keywords:
cement content, concrete, hardened ,, ICS Number Code 91.100.30 (Concrete and concrete products)
Doplňujúce informácie
| Significance and Use | ||||||||||||||||||
|
3.1 This test method consists of two independent procedures: an oxide-analysis procedure that consists of two sub-procedures and an extraction procedure. Each procedure requires a substantial degree of chemical skill and relatively elaborate chemical instrumentation. Except for the influence of known interferences, determined cement contents are normally equal to, or slightly greater than, actual values except for the Maleic Acid procedure where results can also be significantly low when the paste is carbonated (Note 1). Note 1: With certain limitations, the procedure is also
applicable for estimating the combined content of portland cement
and pozzolan or slag in concretes made with blended hydraulic
cement and blends of portland cement with pozzolans or slags. The
results of this test method when applied to concretes made with
blended cements or pozzolans depend on the composition of the
pozzolan, the age of the concrete, the extent of reaction of the
pozzolan and the fact that this test method may determine only the
portland-cement component of a blended cement. The test method
should be applied to determination of the blended cement content or
the pozzolanic content only by use of calibration concrete samples
or other information. Earlier versions of this test method can
provide useful information as detailed by Hime3
and Minnick.1.1 This test method covers the
determination of portland-cement content of a sample of hardened
hydraulic-cement concrete.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered 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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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. |
||||||||||||||||||
| 2. Referenced Documents | ||||||||||||||||||
|
Doporučujeme:
