ASTM C494/C494M-1999ae1 标准详情
- 标准号:ASTM C494/C494M-1999ae1
- 中文标题:标准规范化学添加剂混凝土
- 英文标题:Standard Specification for Chemical Admixtures for Concrete
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1999
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 follows:1.1.1 Type A--Water-reducing admixtures,1.1.2 T
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