ASTM International - ASTM C494/C494M-10a

Standard Specification for Chemical Admixtures for Concrete

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Organization: ASTM International
Publication Date: 1 October 2010
Status: historical
Page Count: 10
ICS Code (Concrete and concrete products): 91.100.30
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.

abstract:

This specification covers the materials and the test methods for use in chemical admixtures to be added to hydraulic-cement concrete mixtures in the field. The seven types of admixtures are... View More

Document History

December 15, 2019
Standard Specification for Chemical Admixtures for Concrete
1.1 This specification covers materials for use as chemical admixtures to be added to hydraulic-cement concrete mixtures for the purpose or purposes indicated for the eight types as follows:...
June 15, 2017
Standard Specification for Chemical Admixtures for Concrete
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...
July 1, 2016
Standard Specification for Chemical Admixtures for Concrete
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...
October 1, 2015
Standard Specification for Chemical Admixtures for Concrete
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...
June 15, 2015
Standard Specification for Chemical Admixtures for Concrete
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...
April 1, 2013
Standard Specification for Chemical Admixtures for Concrete
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...
July 1, 2012
Standard Specification for Chemical Admixtures for Concrete
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...
July 1, 2011
Standard Specification for Chemical Admixtures for Concrete
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...
ASTM C494/C494M-10a
October 1, 2010
Standard Specification for Chemical Admixtures for Concrete
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...
February 1, 2010
Standard Specification for Chemical Admixtures for Concrete
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...
September 1, 2008
Standard Specification for Chemical Admixtures for Concrete
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...
January 1, 2008
Standard Specification for Chemical Admixtures for Concrete
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 seven types as...
December 15, 2005
Standard Specification for Chemical Admixtures for Concrete
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 seven types as...
May 1, 2005
Standard Specification for Chemical Admixtures for Concrete
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 seven types as...
January 1, 2004
Standard Specification for Chemical Admixtures for Concrete
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 seven types as...
October 10, 1999
Standard Specification for Chemical Admixtures for Concrete
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 seven types as...
October 10, 1999
Standard Specification for Chemical Admixtures for Concrete
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 seven types as...
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