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53 条记录 (耗时 0.016 秒)

    Superplasticizer-concrete composition for waste disposal
    3.
    发明授权
    Superplasticizer-concrete composition for waste disposal 失效
    用于废物处理的超增塑剂 - 混凝土组合物

    公开(公告)号：US5551976A

    公开(公告)日：1996-09-03

    申请号：US361425

    申请日：1994-12-21

    申请人： William C. Allen

    发明人： William C. Allen

    IPC分类号： C04B28/02 ,  F16L58/06 ,  C04B18/04

    CPC分类号： C04B28/02 ,  F16L58/06 ,  C04B2111/56 ,  Y02W30/92

    摘要： A solidified waste is formed from a difficult-to-compact hydraulic cement slurry for use in the disposal of hazardous waste. The slurry contains inorganic non-compactible hydraulic cement particles, a concrete superplasticizer compound, water, and filler particles containing radionuclide and/or toxic contaminants. The slurry is then transferred to a storage vessel, such as a subterranean formation, to cast a stronger, denser solidified waste than a comparable solidified waste containing no superplasticizer.

    摘要翻译： 固体废物由难以紧凑的水泥浆料形成，用于处置危险废物。 该浆料含有无机非可压缩水硬性水泥颗粒，混凝土超增塑剂化合物，水和含有放射性核素和/或有毒污染物的填料颗粒。 然后将浆料转移到诸如地下地层的储存容器中，以铸造比不含超增塑剂的可比固化废物更坚固，更致密的固化废物。

    Cement, method of preparing such cement and method of making products using such cement
    4.
    发明授权
    Cement, method of preparing such cement and method of making products using such cement 失效
    水泥，这种水泥的制备方法和使用这种水泥制造产品的方法

    公开(公告)号：US5482549A

    公开(公告)日：1996-01-09

    申请号：US222688

    申请日：1994-04-04

    申请人： J. Blaakmeer ,  W. van Loo ,  P. R. M. Meekels

    发明人： J. Blaakmeer ,  W. van Loo ,  P. R. M. Meekels

    IPC分类号： C04B28/08 ,  C04B35/00 ,  C04B7/02 ,  C04B7/14 ,  C04B7/32

    CPC分类号： C04B28/08 ,  C04B2111/23 ,  C04B2111/56 ,  Y02W30/92 ,  Y10S106/01

    摘要： A homogeneous dry particulate cement mixture in ready-to-use form is provided, which comprises ground blast-furnace slag having a specific surface area of 500-750 m.sup.2 /kg and ground fly ash having a specific surface area of 500-750 m.sup.2 /kg, in a weight ratio in the range of 20/80-70/30, and further comprises the following components in the amounts indicated, calculated on the total mixture: at least 2% by weight of portland cement clinker and 2-12% by weight of sodium silicate (calculated as Na.sub.2 O+SiO.sub.2). When processed, the cement mixture yields a mortar or a concrete having improved strength properties as well as a good resistance against an acidic environment.

    摘要翻译： 提供了即用形式的均匀干燥颗粒状水泥混合物，其包括比表面积为500-750m 2 / kg的研磨高炉矿渣和比表面积为500-750m2 / kg的粉煤灰， kg，重量比在20 / 80-70 / 30的范围内，并且还包括以总量混合物计算的所示量的以下组分：至少2重量％的波特兰水泥熟料和2-12重量％ 的硅酸钠（按Na2O + SiO2计算）。 当加工时，水泥混合物产生具有改善的强度性能的砂浆或混凝土以及对酸性环境的良好抵抗性。

    Rubber-crumb-reinforced cement concrete
    5.
    发明授权
    Rubber-crumb-reinforced cement concrete 失效
    橡胶碎石水泥混凝土

    公开(公告)号：US5391226A

    公开(公告)日：1995-02-21

    申请号：US179099

    申请日：1994-01-10

    申请人： Richard Frankowski

    发明人： Richard Frankowski

    IPC分类号： C04B18/22 ,  C04B28/02 ,  C04B35/117 ,  E04C2/04 ,  E01C5/22

    CPC分类号： C04B35/117 ,  C04B18/22 ,  C04B28/02 ,  E04C2/04 ,  C04B2111/0037 ,  C04B2111/00646 ,  C04B2111/2046 ,  C04B2111/23 ,  C04B2111/56 ,  Y02W30/96 ,  Y10S52/07 ,  Y10S52/09

    摘要： Rubber-crumb-reinforced cement-concrete structures (such as mortar (0), cement board (30), concrete masonry units (40), and concrete pipe (50)) provide resistance to cracking, increase resistance to acid rain, lower weight, improve shock wave absorption, lower heat conductivity and improve the acoustical environment. The structures preferably are made of concrete having a predetermined proportion (from about 1 to about 30 parts by weight per 100 parts by weight of cement) of recycled scrap rubber crumbs which are preferably undirectionally aligned in the cross-section of the structures.

    摘要翻译： 橡胶屑增强水泥混凝土结构（如砂浆（0），水泥板（30），混凝土砌块单元（40）和混凝土管（50））提供抗开裂，增加耐酸雨，降低重量 提高冲击波吸收，降低导热性，改善声环境。 结构优选地由具有预定比例（约每100重量份水泥约1至约30重量份的水泥）的混凝土制成的再循环废料橡胶屑在结构的横截面中优选地不对准地排列。