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ASTM C494/C494M-15
- Standard Specification for Chemical Admixtures for Concrete
- standard by ASTM International, 06/15/2015
- Publisher: ASTM
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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,