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    • 6. 发明授权
    • Water and/or oil-impermeable sealing mat consisting substantially of a
substrate layer, a layer of swellable clay and a cover layer
    • 基本上由基底层,可溶胀粘土层和覆盖层组成的水和/或不透油密封垫
    • US5041330A
    • 1991-08-20
    • US412803
    • 1989-09-27
    • George HeertenKarsten JohannbenVolkhard Muller
    • George HeertenKarsten JohannbenVolkhard Muller
    • E02B3/12E02D31/00
    • E02B3/12E02D31/004Y10T428/2495Y10T428/26Y10T442/3707Y10T442/57Y10T442/608Y10T442/667
    • A water and/or oil-impermeable sealing mat is provided in form of a bentonite non-woven fabric combination with the possibility of transmitting thrust from one batt layer to the other, i.e. on a slope thrust forces can be transmitted by the covering batt material through the layer of swellable clay into the supporting batt material. Such a sealing mat is a fiber-reinforced mineral seal permitting the transmission of thrust forces on slopes, without the risk of the layer of swellable clay itself becoming the preferred sliding plane. The sealing mat consists of a non-woven textile material as substrate layer, a layer of swellable clay, preferably sodium bentonite, and a cover layer consisting preferably also of a non-woven textile material, all three layers having been needled together in the conventional manner in a needle loom. When moistened, the clay swells and forms the water and/or oil-impermeable layer. The water and/or oil-impermeable sealing mat is used especially in hydraulic engineering and in waste disposel engineering.
    • 以膨润土无纺布组合的形式提供水和/或油不渗透密封垫,其可能将推力从一个絮层传递到另一个层,即在斜面上,推力可以通过覆盖絮垫材料传递 通过可膨胀粘土层进入支撑絮垫材料。 这种密封垫是允许在斜坡上传递推力的纤维增强的矿物密封件,而不会有膨胀粘土层本身变成优选的滑动平面的风险。 密封垫由作为基底层的无纺布纺织材料,可膨胀粘土层,优选钠膨润土层以及优选也由非织造织物材料组成的覆盖层组成,所有三层在常规方法中已被针刺在一起 方式在针织机。 当润湿时,粘土膨胀并形成水和/或不透油层。 水和/或不透油密封垫特别用于液压工程和废弃物处理设备。