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    • 2. 发明授权
    • Composition for improving freeze/thaw durability of masonry containing fatty acid-based efflorescence control agents
    • 用于提高含有脂肪酸类风化防治剂的砖石的冻融耐久性的组合物
    • US06302955B1
    • 2001-10-16
    • US09416785
    • 1999-10-13
    • Awdhoot V. KerkarKati Hazrati
    • Awdhoot V. KerkarKati Hazrati
    • C04B2402
    • C04B40/0039C04B24/023C04B24/124C04B24/32C04B28/02C04B2111/21C04B24/02C04B24/085C04B24/2623C04B24/42
    • A composition for improving the freeze thaw durability of masonry concrete comprising (i) an alkylaryl polyether alcohol having the formula R-Ø-(OCH2CH2)xOH, wherein R is a C4-C8 alkyl group (preferably branched), Ø represents a phenol group, and “X” represents an integer in the range of 3-70; and (ii) at least one efflorescence control admixture, such as a C8-C30 fatty acid or its salt or derivative. An exemplary masonry concrete composition of the invention comprises an alkylaryl polyether alcohol having the formula R-Ø-(OCH2CH2)xOH, wherein R is a C4-C8 alkyl group, Ø represents a phenol group, and “X” represents an integer in the range of 3-70; the composition, when wet, having essentially zero slump when tested by the standard cone method for measuring slump. Methods of improving the freeze-thaw durability of masonry units are also disclosed.
    • 一种用于改善砖混混凝土的冻融耐久性的组合物,其包含(i)具有式R-Ø-(OCH 2 CH 2)x OH的烷基芳基聚醚醇,其中R是C 4 -C 8烷基(优选支链),Ø表示苯酚基 ,“X”表示3-70的整数, 和(ii)至少一种风化控制混合物,例如C 8 -C 30脂肪酸或其盐或衍生物。 本发明的示例性砖石混凝土组合物包括具有式R-Ø-(OCH 2 CH 2)x OH的烷基芳基聚醚醇,其中R是C 4 -C 8烷基,Ø表示苯酚基团,“X”表示 范围3-70; 当通过用于测量坍落度的标准锥法测试时,组合物在湿时基本上具有零坍落度。 还公开了提高砌筑单元的冻融耐久性的方法。