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ASTM C494/C494M-10a

Standard Specification for Chemical Admixtures for Concrete (Includes all amendments And changes 8/10/2011).

Automatische name übersetzung:

Standard-Spezifikation für chemische Zusatzmittel für Beton

NORM herausgegeben am 1.10.2010

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Informationen über die Norm:

Bezeichnung normen: ASTM C494/C494M-10a
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.10.2010
SKU: NS-13662
Zahl der Seiten: 10
Gewicht ca.: 30 g (0.07 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM

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Die Annotation des Normtextes ASTM C494/C494M-10a :

Keywords:

accelerating, chemical admixtures, concrete, physical requirements, retarding, specific performance, testing, water reducing, Accelerating admixtures (for concrete), Concrete admixtures--specifications, Moisture analysis--concrete, Water-reducing admixtures (for concrete), ICS Number Code 91.100.30 (Concrete and concrete products)

Ergänzende Informationen

1. Scope

1.1 This specification covers materials for use as chemical admixtures to be added to hydraulic-cement concrete mixtures in the field for the purpose or purposes indicated for the eight types as follows:

1.1.1 Type A—Water-reducing admixtures,

1.1.2 Type B—Retarding admixtures,

1.1.3 Type C—Accelerating admixtures,

1.1.4 Type D—Water-reducing and retarding admixtures,

1.1.5 Type E—Water-reducing and accelerating admixtures,

1.1.6 Type F—Water-reducing, high range admixtures,

1.1.7 Type G—Water-reducing, high range, and retarding admixtures, and

1.1.8 Type S—Specific performance admixtures.

1.2 This specification stipulates tests of an admixture with suitable concreting materials as described in 11.1-11.3 or with cement, pozzolan, aggregates, and an air-entraining admixture proposed for specific work (11.4). Unless specified otherwise by the purchaser, the tests shall be made using concreting materials as described in 11.1-11.3.

Note 1—It is recommended that, whenever practicable, tests be made using the cement, pozzolan, aggregates, air-entraining admixture, and the mixture proportions, batching sequence, and other physical conditions proposed for the specific work (11.4) because the specific effects produced by chemical admixtures may vary with the properties and proportions of the other ingredients of the concrete. For instance, Types F and G admixtures may exhibit much higher water reduction in concrete mixtures having higher cement factors than that listed in 12.1.1.

2. Referenced Documents

C150-07	Standard Specification for Portland Cement
C143/C143M-20	Standard Test Method for Slump of Hydraulic-Cement Concrete
C138/C138M-23	Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
C136-06	Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates
C78-09	Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)
C33-07	Standard Specification for Concrete Aggregates
C39/C39M-23	Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
C183-13	Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement
C192/C192M-19	Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory
C231-09	Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
C157/C157M-17	Standard Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete
C260-10	Standard Specification for Air-Entraining Admixtures for Concrete
ACI 211.1–91	Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete Available from American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333-9094, http://www.aci-int.org.
Manual	of Aggregate and Concrete Testing
E1252-98(2021)	Standard Practice for General Techniques for Obtaining Infrared Spectra for Qualitative Analysis
E100-19	Standard Specification for ASTM Hydrometers
D1193-06(2018)	Standard Specification for Reagent Water
D891-18	Standard Test Methods for Specific Gravity, Apparent, of Liquid Industrial Chemicals
D75-03	Standard Practice for Sampling Aggregates
C1017-C1017M-13	Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete
C666-C666M-15	Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing (Withdrawn 2024)
C403/C403M-23	Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance

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