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    Process of casting or repairing concrete under water
    1.
    发明授权
    Process of casting or repairing concrete under water 失效
    在水下浇筑或修补混凝土的工艺

    公开(公告)号：US4482273A

    公开(公告)日：1984-11-13

    申请号：US333301

    申请日：1981-12-22

    申请人： Olav G. Tjugum ,  Odd M. Tjugum

    发明人： Olav G. Tjugum ,  Odd M. Tjugum

    IPC分类号： E02D15/06 ,  E02D37/00 ,  E02D29/06

    CPC分类号： E02D37/00 ,  E02D15/06

    摘要： The present invention relates to a process of casting of repairing concrete under water whereby the concrete (mortar) to be cast to a minimum extent contacts water and leaching of the binding agent is prevented. The purpose of the process according to the invention is achieved such that a "plug" of liquid organic material based on a reactive or non-reactive synthetic resin or other organic carrier having a suitable viscosity, good cohesion and poor water solubility and with a specific gravity higher than water, but less than cement-based concrete, is introduced into the bottom of a tight formwork to contact a support cement-based concrete having a good flowability is then introduced below the surface level of the plug, the introduction initially being effected in the very plug.The use of a "plug" of such type, which in contact with the concrete (mortar) to be cast and the support constitutes a phase of its own and for which the affinity can be adjusted according to the actual case, affords the possibility that the adherence to the support of the concrete to be cast can even be increased to an extent that portions of the plug which will cling to the support, preferably in connection with curing of the plug material, in a specific embodiment of the process according to the present invention will act as an effective adhesive.

    摘要翻译： 本发明涉及在水下浇铸修复混凝土的方法，从而防止浇注混凝土（砂浆）最小程度地接触水和粘合剂的浸出。 根据本发明的方法的目的是使得基于反应性或非反应性合成树脂或其它有机载体的液体有机材料的“塞子”具有合适的粘度，良好的内聚力和差的水溶性以及具体的 重力高于水，但低于水泥基混凝土，被引入到紧密模板的底部以接触具有良好流动性的支撑水泥基混凝土然后被引入到塞的表面水平之下，最初进行引入 在非常插头。 使用这种类型的“插头”，其与待施加的混凝土（砂浆）接触并且支撑构成其自身的阶段，并且可以根据实际情况调整亲和力，从而提供了 甚至可以将待铸造的混凝土的支撑物的附着力增加到一定程度，在根据本发明的方法的具体实施方案中，塞子的粘附到支撑件的部分优选地与塞子材料的固化有关 本发明将作为有效的粘合剂。

    Workable cementitious compositions
    2.
    发明授权
    Workable cementitious compositions 失效
    可加工水泥组合物

    公开(公告)号：US5494516A

    公开(公告)日：1996-02-27

    申请号：US95125

    申请日：1993-07-20

    申请人： Josef F. Drs ,  Tom Melbye ,  Odd M. Tjugum ,  Salvatore Valenti

    发明人： Josef F. Drs ,  Tom Melbye ,  Odd M. Tjugum ,  Salvatore Valenti

    IPC分类号： C04B24/18 ,  B28C7/00 ,  C04B24/22 ,  C04B24/26 ,  C04B24/30 ,  C04B24/32 ,  C04B28/02 ,  C04B24/00

    CPC分类号： C04B40/0039 ,  C04B28/02 ,  C04B2111/00146 ,  Y02W30/94

    摘要： A process for modifying the slump of a concrete or mortar by the addition at different times of a water-soluble poly(alkylene oxide) and a .beta.-naphthalene sulphonate-formaldehyde condensate, a plasticizer or superplasticizer which is selected from lignosulphonates, melamine sulphonate formaldehyde condensates, carboxylates and selected styrene-maleic anhydride copolymers. The poly(alkylene oxide) is preferably partially replaced by a (hydroxy)alkyl cellulose. The process is advantageously used in shotcreting.

    摘要翻译： 通过在不同时间添加水溶性聚（环氧烷）和β-萘磺酸 - 甲醛缩合物，增塑剂或超增塑剂来改性混凝土或砂浆的坍落度的方法，其选自木素磺酸盐，三聚氰胺磺酸甲醛 缩合物，羧酸酯和选择的苯乙烯 - 马来酸酐共聚物。 聚（环氧烷）优选部分地被（羟基）烷基纤维素代替。 该方法有利地用于喷射。