Admixture and cement composition using same
    7.
    发明授权
    Admixture and cement composition using same 失效
    外加剂和水泥组合物使用相同

    公开(公告)号:US5122191A

    公开(公告)日:1992-06-16

    申请号:US655866

    申请日:1991-02-15

    IPC分类号: C04B14/10

    CPC分类号: C04B14/10

    摘要: An admixture for cement compositions is prepared by calcining at 630.degree. to 870.degree. C. at least one substance selected from the group consisting of natural kaolin, halloysite and synthetic kaolin, effecting classification so that amorphous portions of alumina/silica having a mixing ratio of 0.5 to 1.3 form main components, with all particles having diameters up to 8 .mu.m and an average diameter of 0.5 to 2 .mu.m, and a specific gravity ranging from 2.45 to 2.55. This admixture is used to produce a cement composition such as mortar or concrete, which realizes excellent fluidity to promote workability, and a high strength structure.

    摘要翻译: 通过在630℃至870℃下煅烧至少一种选自天然高岭土,多水高岭土和合成高岭土的物质来制备水泥组合物的混合物,进行分级,使得具有混合比例的氧化铝/二氧化硅的非晶部分 0.5〜1.3构成主要成分,所有颗粒直径达8μm,平均直径为0.5〜2μm,比重为2.45〜2.55。 该混合物用于生产诸如砂浆或混凝土的水泥组合物,其实现了优异的流动性以提高加工性和高强度结构。