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42 条记录 (耗时 0.019 秒)

    Recycling of asphaltic concrete
    1.
    发明申请
    Recycling of asphaltic concrete 有权

    公开(公告)号：US20060243170A1

    公开(公告)日：2006-11-02

    申请号：US11118582

    申请日：2005-04-29

    申请人： Fred Brouillette ,  Max Richwine ,  Clifford Ryan

    发明人： Fred Brouillette ,  Max Richwine ,  Clifford Ryan

    IPC分类号： C04B24/36

    CPC分类号： C04B28/04 ,  C04B18/167 ,  C04B2111/0075 ,  Y02W30/95 ,  C04B14/42 ,  C04B20/0076

    摘要： Method of recycling a crushed asphalt concrete comprising a friable mixture of asphalt and aggregate particles produced by breaking down a recycled asphalt/aggregate concrete by milling or crushing or the like. The aggregate particles include a substantial portion of the surfaces thereof which are substantially free of adhered asphalt material. The crushed asphalt concrete is mixed with a minor amount of hydraulic cement and water to produce a plastic mixture of the crushed asphalt concrete and hydraulic cement. The plastic mixture is transported to a utilization site such as a building site, road or parking lot and spread on a substrate surface to provide a layer of asphalt concrete pavement. The layer of asphalt concrete pavement has a 7-day compressive strength, typically no more than 1,000 psi, e.g., 150-800 psi. The cement is present in an amount within the range of 1-14 wt. %, more specifically, within the range of 2-10 wt. % of the crushed asphalt concrete and any added aggregate. A mixing assembly comprises a moveable conveyor which loads to a mixing mill. The crushed asphalt concrete is deposited on the conveyor to provide a relatively thin layer of the crushed asphalt concrete. Hydraulic cement is dispensed on the layer of crushed asphalt concrete and the crushed concrete and hydraulic cement is conveyed to the mixing mill. Water is added in an amount effective to produce a plastic mixture. The plastic mixture is recovered from the mixing mill and transferred to a utilization site.

    Method and apparatus for using steel slag in cement clinker production
    2.
    发明授权
    Method and apparatus for using steel slag in cement clinker production 失效
    在水泥熟料生产中使用钢渣的方法和装置

    公开(公告)号：US5421880A

    公开(公告)日：1995-06-06

    申请号：US182617

    申请日：1994-01-14

    申请人： Rom D. Young

    发明人： Rom D. Young

    IPC分类号： C04B7/02 ,  C04B7/36 ,  C04B7/44

    CPC分类号： C04B7/36 ,  Y02P40/121 ,  Y02P40/143

    摘要： A process and apparatus by which steel slag can be added to the feedstock materials fed into the feed-end of a rotary cement kiln to form cement clinkers. The steel slag is crushed and screened to provide steel slag particles having a maximum diameter of 2".

    摘要翻译： 可以将钢渣添加到进料到旋转水泥窑的进料端的原料中以形成水泥熟料的方法和设备。 将钢渣粉碎并筛分以提供最大直径为2“的钢渣颗粒。

    Cementitious formulations and processes
    3.
    发明授权
    Cementitious formulations and processes 失效
    水泥配方和工艺

    公开(公告)号：US5234497A

    公开(公告)日：1993-08-10

    申请号：US543353

    申请日：1990-06-25

    申请人： David A. Crocker

    发明人： David A. Crocker

    IPC分类号： C04B28/06

    CPC分类号： C04B28/065

    摘要： A fast setting cementitious composition which upon hydration with water forms a paste-like slurry useful in stopping leaks in the walls of cement pipes. The cementitious composition comprises a dry mixture of a hydraulic cement component having a first Portland cement constituent and a second calcium aluminate constituent, an aggregate component and a lime component. Upon hydration with 23 wt. % water, the resulting slurry has an initial Vicat setting time within the range of 1-5 minutes and a final Vicat setting time of no more than 6 minutes. The cement component contains the first and second cement constituents in weight ratios within the range of 3:2-2:3. The lime component is present in an amount within the range of 1-4 wt. %.In effecting the repair of a water leak, a paste-like slurry is formed from water and the dry cementitious composition. The cementitious paste is supplied to the repair site. Sufficient force is applied against the paste to hold it against the repair site while allowing the cement to set to provide sufficient strength to offset the hydraulic gradient and stop the water leakage.

    摘要翻译： 一种快速凝固的水泥组合物，其在与水合作用时形成糊状淤浆，可用于阻止水泥管壁中的泄漏。 水泥组合物包含具有第一波特兰水泥组分和第二铝酸钙组分的水硬性水泥组分，聚集体组分和石灰组分的干混合物。 水合后用23wt。 ％水，所得浆料的初始维卡凝固时间在1-5分钟的范围内，最终维卡凝固时间不超过6分钟。 水泥组分含有重量比在3:2-2:3范围内的第一和第二水泥组分。 石灰成分的存在量为1-4wt。 ％。 在进行漏水修复时，由水和干燥的水泥组合物形成糊状的浆料。 水泥糊被提供给维修点。 对浆料施加足够的力以将其保持在修复位置，同时允许水泥设置以提供足够的强度以抵消水力梯度并停止漏水。

    Method and apparatus for using blast-furnace slag in cement clinker production
    10.
    发明授权
    Method and apparatus for using blast-furnace slag in cement clinker production 失效
    在水泥熟料生产中使用高炉渣的方法和设备

    公开(公告)号：US5494515A

    公开(公告)日：1996-02-27

    申请号：US404902

    申请日：1995-03-15

    申请人： Rom D. Young

    发明人： Rom D. Young

    IPC分类号： C04B7/14 ,  C04B7/02 ,  C04B7/17 ,  C04B7/36 ,  C04B7/38 ,  C04B7/42 ,  C04B7/44 ,  F27B7/00

    CPC分类号： C04B7/17 ,  Y02P40/143

    摘要： A process and apparatus by which blast-furnace slag can be added to the feedstock materials fed into the feed-end of a rotary cement kiln to form cement clinkers. The blast-furnace slag is crushed and screened to provide blast-furnace slag particles having particles with a predominant size of up to a maximum diameter of substantially 2" or less.

    摘要翻译： 可以将高炉矿渣加入到进料到旋转水泥窑进料端的原料中以形成水泥熟料的方法和设备。 将高炉渣粉碎并筛分，以提供具有主要尺寸的高炉炉渣颗粒，其最大直径基本上为2“或更小。