Encapsulation of boric acid slurries
    2.
    发明授权
    Encapsulation of boric acid slurries 失效
    封装硼酸浆液

    公开(公告)号:US4504317A

    公开(公告)日:1985-03-12

    申请号:US472526

    申请日:1983-03-07

    IPC分类号: G21F9/16 C04B7/35

    摘要: Disclosed is a process for encapsulating in cement a boric acid slurry which is at least about 30% boric acid. To the sulrry is added about 3.5 to about 4.5% dispersing agent, about 0.02 to about 0.03 ml/g of a cement retarder, up to about 0.4% of a hardener, and sufficient cement to bring the weight ratio of water to cement to about 0.4 to about 0.6. Also disclosed is a cement composition produced by said method.

    摘要翻译: 公开了一种在水泥中包封硼酸浆料的方法,所述硼酸浆料为至少约30%的硼酸。 添加约3.5至约4.5%的分散剂,约0.02至约0.03ml / g的水泥缓凝剂,至多约0.4%的硬化剂,以及足够的水泥使水与水泥的重量比达到约 0.4至约0.6。 还公开了通过所述方法制备的水泥组合物。

    Grinding aid and mineral mixture containing it
    5.
    发明授权
    Grinding aid and mineral mixture containing it 失效
    研磨助剂和含有矿物混合物

    公开(公告)号:US4491480A

    公开(公告)日:1985-01-01

    申请号:US558676

    申请日:1983-12-06

    摘要: Grinding aid for grinding pretreated or untreated minerals and mixtures of minerals, such as cement, characterized in that it consists of 1,1-dimethylol propane. Distillation first runnings from trimethylol propane production containing 1,1-dimethylol propane as the main constituent are particularly suitable. The grinding aid according to the invention leads to a considerable improvement to the flowability or fluidity of the ground material, i.e. pack-setting or compaction thereof is prevented.

    摘要翻译: 用于研磨预处理或未经处理的矿物和矿物混合物如砂浆的研磨助剂,其特征在于其由1,1-二羟甲基丙烷组成。 来自含有1,1-二羟甲基丙烷作为主要成分的三羟甲基丙烷生产的蒸馏第一次运行是特别合适的。 根据本发明的研磨助剂可以大大改善研磨材料的流动性或流动性,即防止其包装设置或压实。

    Hydraulic heat-resisting material and premold product made of such
hydraulic heat-resisting material
    7.
    发明授权
    Hydraulic heat-resisting material and premold product made of such hydraulic heat-resisting material 失效
    液压耐热材料和预制产品由这种液压耐热材料制成

    公开(公告)号:US4472201A

    公开(公告)日:1984-09-18

    申请号:US407343

    申请日:1982-08-12

    IPC分类号: C04B28/02 C04B7/35

    CPC分类号: C04B28/02

    摘要: Hydraulic heat-resisting material of an improved thermal property which has high strength and high volume stability under high temperature is disclosed. The material substantially consists of 5 to 70 parts by weight of a mixture, the mixture consisting of 49.95 to 87.3% by weight of hydraulic cement, 49.95 to 9.7% by weight of amorphous silica and 0.1 to 3% by weight of a dispersing agent, and 95 to 30 parts by weight of a heat-resisting aggregate. Premold product made of the above material is also disclosed.

    摘要翻译: 公开了在高温下具有高强度和高体积稳定性的改进的热性能的液压耐热材料。 该材料基本上由5至70重量份的混合物组成,该混合物由49.95至87.3重量%的水硬水泥,49.95至9.7重量%的无定形二氧化硅和0.1至3重量%的分散剂组成, 和95〜30重量份的耐热骨料。 还公开了由上述材料制成的Premold产品。

    Reactivatable set-inhibited cementitious compositions
    8.
    发明授权
    Reactivatable set-inhibited cementitious compositions 失效
    可再活化的抑制水泥组合物

    公开(公告)号:US4455171A

    公开(公告)日:1984-06-19

    申请号:US447392

    申请日:1982-12-06

    摘要: Aqueous grouting compositions based on high alumina cement have the onset of setting delayed for upwards of one month by the incorporation therein of a set-inhibiting agent such as boric acid or gluconic acid delta lactone and can then be rapidly reactivated for use by the incorporation therein of a reactivator, for example lithium carbonate, to produce a high strength hardened cementitious composition. The reactivated composition can advantageously be used to anchor a reinforcing element such as a rockbolt or dowel in a borehole and for this purpose the set-inhibited cementitious composition and the reactivator can be packaged in the separate compartments respectively of a dual-compartment frangible cartridge.

    摘要翻译: 基于高铝水泥的水性灌浆组合物通过在其中掺入诸如硼酸或葡糖酸δ内酯的凝固抑制剂而延迟了一个月以上的开始,然后可以通过其中加入而快速重新活化使用 的再生剂,例如碳酸锂,以产生高强度硬化水泥质组合物。 再活化的组合物可以有利地用于将加强元件例如摇杆或定位销锚固在钻孔中,并且为此目的,可将抑制凝结的组合物和再活化剂分别包装在双室易碎筒的分开的隔室中。

    Marker fluid composition for spotting cement in offshore wells
    9.
    发明授权
    Marker fluid composition for spotting cement in offshore wells 失效
    用于在近海油井中检测水泥的标记液组成

    公开(公告)号:US4452638A

    公开(公告)日:1984-06-05

    申请号:US489361

    申请日:1983-04-28

    申请人: Julius P. Gallus

    发明人: Julius P. Gallus

    摘要: Cementing casing in an offshore well by displacing a drilling fluid with a settable cement slurry wherein there is injected into the annulus between the sidewall of the well and the casing ahead of the cement slurry a slug of a visually identifiable marker fluid containing cement, water, particulate carbon black, coal dust, and a surface active agent; visually observing when the fluid being displaced from the annulus changes from drilling fluid to marker fluid, and shutting in the well to allow the cement slurry to set.

    摘要翻译: 通过用可固定的水泥浆置换钻井液,在井眼中固定套管,其中注入到井的侧壁和水泥浆前面的壳体之间的环形空间中,其中含有水泥,水, 颗粒炭黑,煤尘和表面活性剂; 目视观察何时从环形空间移动的流体从钻井液转移到标记液,并关闭井,以使水泥浆固化。

    Expansive cement additive and cementitious material added therewith
    10.
    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。