CEMENT MIXES CONTAINING ADDITIVES FOR ALTERING THE HARDENING RATE OF CHEMICALLY BONDED SILICO-PHOSPHATE CEMENTS AND METHODS THEREFOR
    1.
    发明申请
    CEMENT MIXES CONTAINING ADDITIVES FOR ALTERING THE HARDENING RATE OF CHEMICALLY BONDED SILICO-PHOSPHATE CEMENTS AND METHODS THEREFOR 有权
    含有添加剂的水泥混合物,用于改变化学键合的硅磷酸盐化合物的硬化速率及其方法

    公开(公告)号:US20130199415A1

    公开(公告)日:2013-08-08

    申请号:US13758200

    申请日:2013-02-04

    Abstract: A cement mix for preparation of a magnesium silico-phosphate cement (MSPC) with an altered hardening rate is provided. The cement mix comprises on the order of 1% of an [MF6]n− salt or acid. Upon addition of water, the mix produces a final set cement that has similar physical properties to those of a cement prepared from a mix lacking the additive, but with a significantly altered setting time. In some embodiments of the invention, the additive is provided in the form of a coating for the MgO component of the mix. In preferred embodiments, H2TiF6, Na2TiF6 and/or K2TiF6 are used as retarders, while K3AlF6 is used as an accelerant. Other embodiments use M′nMF6 compounds wherein M′ is an alkali metal, an alkaline earth metal, or H, and M is chosen from inter alia Ti (n=2), Zr (n=2), P (n=1), Al (n=3), and Sb (n=1).

    Abstract translation: 提供了具有改变的硬化速率的用于制备硅酸钙水泥(MSPC)的水泥混合物。 水泥混合物的含量约为1%的[MF6] n-盐或酸。 加入水后,该混合物产生与由缺乏添加剂的混合物制备的水泥相似的物理性质的最终固化水泥,但具有显着改变的凝固时间。 在本发明的一些实施方案中,添加剂以混合物的MgO组分的涂层形式提供。 在优选的实施方案中,使用H 2 TiF 6,Na 2 TiF 6和/或K 2 TiF 6作为缓凝剂,而K 3 AlF 6用作促进剂。 其它实施方案使用M'nMF6化合物,其中M'为碱金属,碱土金属或H,M特别选自Ti(n = 2),Zr(n = 2),P(n = 1) ,Al(n = 3)和Sb(n = 1)。

    Cement mixes containing additives for altering the hardening rate of chemically bonded silico-phosphate cements and methods therefor
    2.
    发明授权
    Cement mixes containing additives for altering the hardening rate of chemically bonded silico-phosphate cements and methods therefor 有权
    含有添加剂的水泥混合物,用于改变化学键合硅磷酸盐水泥的硬化速率及其方法

    公开(公告)号:US08652248B2

    公开(公告)日:2014-02-18

    申请号:US13758200

    申请日:2013-02-04

    Abstract: A cement mix for preparation of a magnesium silico-phosphate cement (MSPC) with an altered hardening rate is provided. The cement mix comprises on the order of 1% of an [MF6]n− salt or acid. Upon addition of water, the mix produces a final set cement that has similar physical properties to those of a cement prepared from a mix lacking the additive, but with a significantly altered setting time. In some embodiments of the invention, the additive is provided in the form of a coating for the MgO component of the mix. In preferred embodiments, H2TiF6, Na2TiF6 and/or K2TiF6 are used as retarders, while K3AlF6 is used as an accelerant. Other embodiments use M′nMF6 compounds wherein M′ is an alkali metal, an alkaline earth metal, or H, and M is chosen from inter alia Ti (n=2), Zr (n=2), P (n=1), Al (n=3), and Sb (n=1).

    Abstract translation: 提供了具有改变的硬化速率的用于制备硅酸钙水泥(MSPC)的水泥混合物。 水泥混合物的含量约为1%的[MF6] n-盐或酸。 加入水后,该混合物产生与由缺乏添加剂的混合物制备的水泥相似的物理性质的最终固化水泥,但具有显着改变的凝固时间。 在本发明的一些实施方案中,添加剂以混合物的MgO组分的涂层形式提供。 在优选的实施方案中,使用H 2 TiF 6,Na 2 TiF 6和/或K 2 TiF 6作为缓凝剂,而K 3 AlF 6用作促进剂。 其它实施方案使用M'nMF6化合物,其中M'为碱金属,碱土金属或H,M特别选自Ti(n = 2),Zr(n = 2),P(n = 1) ,Al(n = 3)和Sb(n = 1)。

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