Corrosion-proof concrete
    1.
    发明授权
    Corrosion-proof concrete 失效
    防腐混凝土

    公开(公告)号:US4668541A

    公开(公告)日:1987-05-26

    申请号:US843661

    申请日:1986-03-25

    Abstract: Salt damage to concrete structures as a result of contact with dry salt, sea water or like salt environments can be avoided in the case of new structures and repaired in the case of damaged structures by applying a layer of slag cement concrete to the structures. The ability of slag cement to absorb chlorides and to delay chloride penetration greatly lengthens the time required to initiate corrosion of the reinforcing irons by the chlorides present and to reduce the effect of chlorides in conjunction with frost. The slag cement-concrete also has a leaching effect on chloride-infected structures and in the case, for example, of an old bridge pier having applied thereto a layer of slag cement-concrete the carbonation front is halted and a new front is formed in the protective layer. The chloride profile extending through the pier is also changed as a result of chloride irons diffusing out from the infected concrete and being neutralized in the protective layer. The slag cement can also be applied to form a salt-frost resistant layer by spray casting techniques, this being difficult to achieve with conventional shotcrete base on other types of cements.

    Abstract translation: 在新结构的情况下,可以避免与干盐,海水或类似盐环境的接触对混凝土结构造成的盐损害,并在结构受损的情况下通过在结构上施加一层熔渣水泥混凝土来修复。 炉渣水泥吸收氯化物和延缓氯化物渗透的能力大大延长了氯化物存在引起增强铁腐蚀所需的时间,并减少氯化物与霜结合的影响。 炉渣水泥混凝土还对氯化物感染结构物具有浸出作用,在例如老桥墩上施加了一层熔渣水泥混凝土的情况下,碳酸化前部停止,并且形成新的前部 保护层。 延伸穿过码头的氯化物分布也由于氯化铁从感染混凝土中扩散出来而在保护层中被中和。 也可以通过喷射浇铸技术将渣渣施用于形成防盐霜层,这对于其他类型的水泥的常规喷浆混合物来说难以实现。

    Coatings for receptacles
    4.
    发明授权
    Coatings for receptacles 失效
    容器用涂料

    公开(公告)号:US5437890A

    公开(公告)日:1995-08-01

    申请号:US229376

    申请日:1994-04-18

    Applicant: Mark H. Gramke

    Inventor: Mark H. Gramke

    Abstract: The present invention relates to a coating for metallurgical receptacles comprising a slurry of slag fines, lime and water. The coating has proven effective at releasing the skull remaining in metallurgical receptacles after the molten metal has been tapped off and the slag layer has been poured off. The invention also relates to a process for coating metallurgical receptacles with the coating composition of the present invention.

    Abstract translation: 本发明涉及一种用于冶金容器的涂层,其包括渣粉,石灰和水的浆料。 已经证明涂层在熔融金属已经被分离并且已经倒出渣层之后释放留在冶金容器中的头骨是有效的。 本发明还涉及用本发明的涂料组合物涂覆冶金容器的方法。

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