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Standard Test Method for Static Segregation of Self-Consolidating Concrete Using Column Technique
Přeložit název
NORMA vydána dne 15.5.2021
Označení normy: ASTM C1610/C1610M-21
Datum vydání normy: 15.5.2021
Kód zboží: NS-1028638
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
coarse aggregate, self-consolidating concrete, stability, static segregation,, ICS Number Code 91.100.30 (Concrete and concrete products)
Significance and Use | ||||||||||||||
5.1?This test method provides users with a procedure to determine the potential static segregation of self-consolidating concrete. Note 1:?This test method may not be sufficiently rapid to
evaluate self-consolidating concrete mixtures in the field before
placement. Test Method C1712
provides a rapid method for assessing static segregation resistance
of self-consolidating concrete.
5.2?This test method shall be used to develop self-consolidating concrete mixtures with segregation not exceeding specified limits. Self-consolidating concrete is a fluid concrete that can be prone to segregation if not proportioned to be cohesive. A cohesive self-consolidating concrete is important for all applications but is especially critical for deep-section applications such as walls or columns. Therefore, the degree of segregation can indicate if a mixture is suitable for the application. Note 2:?Some level of segregation is tolerable as long as the
desired strength and durability performance is achieved.
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1. Scope | ||||||||||||||
1.1?This test method covers the determination of static segregation of self-consolidating concrete (SCC) by measuring the coarse aggregate content in the top and bottom portions of a cylindrical specimen (or column). 1.2?This test method is not applicable to self-consolidating concrete containing lightweight aggregate. 1.3?This test method is applicable under laboratory and field conditions. 1.4?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. 1.5?The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.6?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. 1.7?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. |
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2. Referenced Documents | ||||||||||||||
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