Expansive cement additive and cementitious material added therewith
    3.
    发明授权
    Expansive cement additive and cementitious material added therewith 失效
    添加膨胀水泥添加剂和水泥材料

    公开(公告)号:US4452637A

    公开(公告)日:1984-06-05

    申请号:US457683

    申请日:1983-01-13

    CPC分类号: C04B7/326 C04B22/008

    摘要: An expansive cement additive and a cementitious material added therewith, said expansive additive consisting of a pulverized product of clinker containing 15.about.60% by weight of free CaO, 5.about.30% by weight of free CaF.sub.2, 30.about.80% by weight of 11CaO.7Al.sub.2 O.sub.3.CaF.sub.2, and less than 10% by weight of other ingredients or a mixed pulverized product of said clinker and gypsum, in which the weight ratio of CaSO.sub.4 /Al.sub.2 O.sub.3 ranges from 1.0 to 3.5.

    摘要翻译: 一种膨胀水泥添加剂和一种水泥质材料,所述膨胀添加剂由熟料的粉碎产物组成,该粉碎产物含有15重量%的游离CaO,5重量%的游离CaF 2,30重量%的碳酸钙,30重量%的11CaO 0.7 Al 2 O 3·C 2 F 2和小于10重量%的其它成分或所述熟料和石膏的混合粉碎产物,其中CaSO 4 / Al 2 O 3的重量比为1.0-3.5。

    Cement composition
    6.
    发明授权
    Cement composition 失效
    水泥组合物

    公开(公告)号:US5096497A

    公开(公告)日:1992-03-17

    申请号:US476372

    申请日:1990-07-18

    IPC分类号: C04B7/32 C04B28/06

    摘要: A hardened cement is prepared by mixing together two slurries, one comprising water and a cement component and the other comprising water, beta anhydrite and calcium oxide and or calcium hydroxide. According to the invention the cement component of the first slurry comprises ferrite and C.sub.12 A.sub.7 or A.sub.7 A--CX.sub.2 (where X is a halogen atom) and a reactive source of silica.

    摘要翻译: PCT No.PCT / GB89 / 01078 Sec。 371 1990年7月18日第 102(e)日期1990年7月18日PCT提交1989年9月14日PCT公布。 出版物WO90 / 03346 日本1990年04月5日。硬化水泥通过将两种浆料混合在一起来制备,一种由水和水泥组分组成,另一种由水,β无水石膏和氧化钙和/或氢氧化钙组成。 根据本发明,第一浆料的水泥组分包括铁氧体和C12A7或A7A-CX2(其中X是卤素原子)和二氧化硅的反应性源。

    Process for manufacturing rapid hardening portland cement clinker
    7.
    发明授权
    Process for manufacturing rapid hardening portland cement clinker 失效
    快速硬化硅酸盐水泥熟料的制造工艺

    公开(公告)号:US4028126A

    公开(公告)日:1977-06-07

    申请号:US431157

    申请日:1974-01-07

    IPC分类号: C04B7/02 C04B7/32 C04B7/54

    CPC分类号: C04B7/02 C04B7/326

    摘要: A process for manufacturing a rapid hardening portland cement clinker containing a calcium halo-aluminate having the formula; 11CaO.7Al.sub.2 O.sub.3.CaX.sub.2, in which X is a halogen, characterized by adding at least one sulfur compound selected from calcium sulfate, calcium sulfite and calcium sulfide to the mixed raw materials comprising mainly an aluminous material, a calcareous material, a silicious material, an iron source and a halogen source, and burning the obtained mixture in an oxidizing temperature.

    摘要翻译: 一种制备含有具有下式的卤代铝酸钙的快速硬化硅酸盐水泥熟料的方法: 11CaO.7Al2O3.CaX2,其中X是卤素,其特征在于向主要包含铝质材料,钙质材料,硅质材料的混合原料中加入至少一种选自硫酸钙,亚硫酸钙和硫化钙的硫化合物, 铁源和卤素源,并在氧化温度下燃烧得到的混合物。

    Rapid hardening portland cement clinker composition
    8.
    发明授权
    Rapid hardening portland cement clinker composition 失效
    快速硬化波特兰水泥夹克组合物

    公开(公告)号:US3767435A

    公开(公告)日:1973-10-23

    申请号:US3767435D

    申请日:1971-12-15

    IPC分类号: C04B7/345 C04B7/32 C04B7/02

    CPC分类号: C04B7/326

    摘要: A rapid hardening portland cement comprising 40 - 60 percent by weight of 11CaO.7A12O3.CaF2 phase and 30 - 50 percent by weight of 3CaO.SiO2 solid solution phase as the main mineral composition thereof and a process for manufacturing it.

    摘要翻译: 包含40-60重量%的11CaO.7A12O3.CaF2相和30-50重量%的3CaO.SiO 2固溶体相作为其主要矿物组合物的快速硬化硅酸盐水泥及其制造方法。