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    • 2. 发明公开
    • HARDENING ACCELERATOR CONTAINING ETTRINGITE AND CALCIUM SILICATE HYDRATE
    • HINRUNGSBESCHLEUNIGER MIT ETTRINGIT UND EINEM CALCIUMSILIKATHYDRAT
    • EP3038994A1
    • 2016-07-06
    • EP14753267.5
    • 2014-08-22
    • BASF Construction Solutions GmbH
    • HESSE, ChristophLOGES, Niklas
    • C04B40/00C04B28/02C04B28/14C04B28/16
    • The invention concerns a process for the preparation of a calcium silicate hydrate and ettringite containing hardening accelerator composition by reaction of a water-soluble calcium compound, silicate compound, aluminum compound and a sulfate compound, wherein the molar ratio of silicon to sulfate is from 2/1 to 30/1 and the reaction of the four compounds being carried out in the presence of an aqueous solution which contains a comb polymer suitable as a plasticizer for hydraulic binders. Also concerned are the use of said accelerators in building material mixtures, the building material mixtures containing said accelerators and a process for the preparation of a sprayable binder composition in which said accelerators are used.
    • 本发明涉及通过水溶性钙化合物,硅酸盐化合物,铝化合物和硫酸盐化合物的反应来制备含硅酸钙水合物和含钙矾土的硬化促进剂组合物的方法,其中硅与硫酸盐的摩尔比为2 / 1至30/1,并且四种化合物的反应在含有适合作为水硬性粘合剂的增塑剂的梳形聚合物的水溶液存在下进行。 还关注的是所述促进剂在建筑材料混合物中的应用,含有所述促进剂的建筑材料混合物以及制备其中使用所述促进剂的可喷涂粘合剂组合物的方法。