Material and method for forming an underwater barrier layer
    1.
    发明授权
    Material and method for forming an underwater barrier layer 失效
    用于形成水下阻挡层的材料和方法

    公开(公告)号:US5538787A

    公开(公告)日:1996-07-23

    申请号:US268633

    申请日:1994-06-30

    摘要: A bead for forming a barrier layer over an underwater surface. Generally, a plurality of such beads are required to form an effective underwater barrier layer. Each of the beads comprises a core, preferably formed of a piece of gravel. A sealant layer is provided which at least partially encapsulates this core. The sealant layer includes a clay and a binder. The binder facilitates the adhesion of the sealant layer to the core of the bead. To form such an underwater barrier layer over contaminated sediments beneath a body of water, a plurality of the beads are deposited on top of the contaminated sediments.

    摘要翻译: 用于在水下表面上形成阻挡层的珠。 通常,需要多个这样的珠来形成有效的水下阻挡层。 每个小珠包括芯,优选由一块砾石形成。 提供了至少部分地包封该芯的密封剂层。 密封剂层包括粘土和粘合剂。 粘合剂有利于密封剂层与珠芯的粘合。 为了在水体下面的污染沉积物上形成这样的水下阻挡层,多个珠粒沉积在污染的沉积物的顶部。

    Flowable material to isolate or treat a surface
    5.
    发明授权
    Flowable material to isolate or treat a surface 失效
    用于分离或处理表面的可流动材料

    公开(公告)号:US5897946A

    公开(公告)日:1999-04-27

    申请号:US682306

    申请日:1996-07-17

    摘要: A flowable material to isolate or treat a surface consists of a plurality of manufactured composite particles. Each composite particle includes a core, and a sealant layer at least partially encapsulating the core. The core is relatively dense compared to the sealant layer, and the composite particle has a specific gravity greater than one. The sealant layer includes a clay mineral, a pozzolanic material and/or activated carbon. A sealant layer formed of a pozzolanic material creates a hardened underwater barrier layer. The sealant layer can also include natural fibers such as cellulose or man-made fibers such as glass, carbon or plastics to mechanically improve the geotechnical properties of the layer when hydrated. The composite particles can also include a material to treat the contaminants or otherwise improve the surrounding environment.

    摘要翻译: 用于分离或处理表面的可流动材料由多个制造的复合颗粒组成。 每个复合颗粒包括芯和至少部分地包封芯的密封剂层。 核心与密封剂层相比是相对密集的,并且复合颗粒的比重大于1。 密封剂层包括粘土矿物,火山灰材料和/或活性炭。 由火山灰材料形成的密封层产生硬化的水下阻挡层。 密封剂层还可以包括天然纤维,例如纤维素或人造纤维如玻璃,碳或塑料,以在水合时机械地改善该层的岩土性质。 复合颗粒还可以包括用于处理污染物或以其它方式改善周围环境的材料。