CEMENT FLUIDIFIERS HAVING STARCH SULPHATE BASE
    6.
    发明公开
    CEMENT FLUIDIFIERS HAVING STARCH SULPHATE BASE 失效
    凝水泥搅拌剂对浓度硫酸盐BASIS

    公开(公告)号:EP0983212A1

    公开(公告)日:2000-03-08

    申请号:EP98930673.3

    申请日:1998-05-05

    IPC分类号: C04B24/16

    摘要: Described herein is a cement fluidifier consisting of starch sulphate, its hydrolysed derivatives, or their salts, where the starch sulphate has a sulphur content of between 6 % and 12 % and a molecular weight of between 3'000 and 50'000. Also described are cementitious compositions having high fluidity and reduced entraining of air, containing said starch sulphate, and their process of preparation. A process is moreover described for increasing the fluidity of cementitious compositions and/or for reducing entrapping of air, characterized by the use of a fluidifier consisting of said starch sulphate.

    CEMENT FLUIDIFIERS HAVING STARCH SULPHATE BASE
    9.
    发明授权
    CEMENT FLUIDIFIERS HAVING STARCH SULPHATE BASE 失效
    凝水泥搅拌剂对浓度硫酸盐BASIS

    公开(公告)号:EP0983212B1

    公开(公告)日:2002-02-13

    申请号:EP98930673.3

    申请日:1998-05-05

    IPC分类号: C04B24/16

    摘要: Described herein is a cement fluidifier consisting of starch sulphate, its hydrolysed derivatives, or their salts, where the starch sulphate has a sulphur content of between 6 % and 12 % and a molecular weight of between 3'000 and 50'000. Also described are cementitious compositions having high fluidity and reduced entraining of air, containing said starch sulphate, and their process of preparation. A process is moreover described for increasing the fluidity of cementitious compositions and/or for reducing entrapping of air, characterized by the use of a fluidifier consisting of said starch sulphate.