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    Cementitious compositions containing feldspar and pozzolanic particulate material, and method of making said composition
    5.
    发明授权
    Cementitious compositions containing feldspar and pozzolanic particulate material, and method of making said composition 有权
    包含长石和火山灰微粒材料的水泥组合物，以及制备所述组合物的方法

    公开(公告)号：US08066813B2

    公开(公告)日：2011-11-29

    申请号：US12919856

    申请日：2009-02-24

    Applicant: Allen Pratt

    Inventor： Allen Pratt

    IPC: C04B28/08 ,  B28C5/00

    CPC classification number: C04B28/065 ,  C04B7/17 ,  C04B7/21 ,  C04B28/08 ,  C04B2111/00724 ,  Y02P40/143 ,  Y02W30/94 ,  C04B14/045 ,  C04B18/141 ,  C04B22/064 ,  C04B22/143 ,  C04B40/0254 ,  C04B14/14

    Abstract: A method of making a cementitious composition comprises (a) selecting at least one pozzolanic particulate material; (b) selecting and grinding at least one feldspar material to a fineness of at least 3000 Blaine; (c) mixing calcium oxide or calcium hydroxide with gypsum; (d) mixing the ground feldspar with the lime-gypsum mixture to produce an activator; (e) conditioning the pozzolanic particulate material with an aqueous solution; (f) adding the activator to the conditioned material to produce a slurry; and (g) curing the slurry in a sealed container. The pozzolanic particulate material can be slag, fly ash, or siliceous rock. A cementitious composition of the invention comprises a pozzolanic particulate material, a ground feldspar material, a lime compound and gypsum, and uses readily available materials, as an economic replacement for Portland cement, fly ash or other materials in filling, backfilling and paving, particularly for backfilling or stabilizing mine sites.

    Abstract translation: 制备水泥组合物的方法包括（a）选择至少一种火山灰微粒材料; （b）选择和研磨至少一种长石材料至至少3000布莱恩的细度; （c）将氧化钙或氢氧化钙与石膏混合; （d）将地面长石与石灰 - 石膏混合物混合以产生活化剂; （e）用水溶液调理火山灰微粒材料; （f）将活化剂加入到调理的材料中以产生浆料; 和（g）在密封容器中固化浆料。 火山灰颗粒材料可以是渣，飞灰或硅质岩。 本发明的水泥组合物包括火山灰微粒材料，地长石材料，石灰化合物和石膏，并且使用容易获得的材料作为经济上的替代品，例如在波特兰水泥，飞灰或填充，回填和铺路中的其它材料 用于回填或稳定矿场。

    Storable cementitious slurries containing boric acid and method of using the same
    8.
    发明申请
    Storable cementitious slurries containing boric acid and method of using the same 失效
    含有硼酸的可贮存的水泥泥浆及其使用方法

    公开(公告)号：US20050022992A1

    公开(公告)日：2005-02-03

    申请号：US10629968

    申请日：2003-07-30

    Applicant: Gino Di Lullo Arias ,  Philip Rae

    Inventor： Gino Di Lullo Arias ,  Philip Rae

    IPC: C04B28/04 ,  C09K8/467 ,  E21B33/13

    CPC classification number: C04B28/04 ,  C09K8/467 ,  C04B22/0013 ,  C04B22/12 ,  C04B24/2664 ,  C04B40/0658 ,  C04B2103/408 ,  C04B22/16 ,  C04B24/34 ,  C04B22/10 ,  C04B24/122 ,  C04B14/045

    Abstract: A storable, hydraulically-active, cementitious slurry is made and used to cement within subterranean foundations for oil and gas wells. The slurry is made from a hydraulically-active cementitious material, a suspending agent, and, as a retarder, boric acid. The boric acid is present in the cementitious slurry in an amount sufficient to lower the pH of the storable cementitious slurry to at least 12.0, preferably to at least 11.0 or preferably, for reasons of longevity, to a pH of at least 9.0. Generally the amount of boric acid in the cementitious slurry is between from about 1 to about 6 percent by weight. Preferred as suspending agent are iota carrageenan as well as poly (methyl vinyl ether/maleic anhydride) decadiene copolymer. The slurry remains liquid during storage. The slurry is activated when needed for cementing and is pumped into the subterranean formation where it is allowed to set.

    Abstract translation: 制备了一种可储存的水硬性水泥浆，并用于在油气井的地下地下水泥中水泥。 浆料由水硬性胶结材料，悬浮剂和作为缓凝剂的硼酸制成。 硼酸存在于水泥质浆料中，其用量足以将可储存的水泥质浆料的pH降低至至少12.0，优选至少11.0，或者由于寿命的原因优选至少为9.0的pH。 一般来说，水泥浆中硼酸的含量介于约1％至6％（重量）之间。 优选的悬​​浮剂是ι角叉藻聚糖以及聚（甲基乙烯基醚/马来酸酐）癸二烯共聚物。 储存期间浆液保持液体。 浆料在需要固化时被活化，并被泵送到地下地层中，在那里它被允许放置。

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