Concrete protective agent and preparation method thereof, and concrete protective film and preparation method thereof

    公开(公告)号:US10851024B2

    公开(公告)日:2020-12-01

    申请号:US16463468

    申请日:2017-06-07

    摘要: The present invention provides a concrete protective agent and a preparation method thereof, and a concrete protective film and a preparation method thereof. The concrete protective agent provided in the present invention includes the following components: water, oxalic acid, a defoaming agent, and a film-forming agent. When the concrete protective agent provided in the present invention is used for concrete protection, oxalic acid in the protective agent can react with calcium ions in concrete for in situ generation of calcium oxalate monohydrate inside and on a surface of concrete to obtain a protective film with strong adhesion to concrete. The film-forming agent in the protective agent is used as a template to adjust and control growth of calcium oxalate crystals, so as to improve waterproof performance and corrosion resistance to sulfate and chloride ions of the protective film. Preparation methods provided in the present invention are simple and practical and are suitable for mass production.

    Gypsum Remover
    7.
    发明申请
    Gypsum Remover 审中-公开
    石膏卸妆

    公开(公告)号:US20150197454A1

    公开(公告)日:2015-07-16

    申请号:US14422665

    申请日:2013-08-29

    发明人: Sergio Vitomir

    IPC分类号: C04B41/46 C11D11/00 C11D7/26

    摘要: Contemplated compositions and methods for treating in service concrete includes the step of contacting a portion of the in service concrete with an composition, wherein the composition comprises a base and at least one of an acid and a salt of an acid in an amount effective to convert insoluble calcium salts into soluble calcium gluconates that can be washed away with water or other liquid.

    摘要翻译: 用于在使用混凝土中处理的考虑的组合物和方法包括将一部分在使用中的混凝土与组合物接触的步骤,其中所述组合物包含碱和至少一种酸和有效转化的酸的盐 不溶性钙盐转化成可用水或其他液体冲洗掉的可溶性葡萄糖酸钙。

    Method for retarding efflorescence in building materials and building
material that exhibits reduced efflorescence
    10.
    发明授权
    Method for retarding efflorescence in building materials and building material that exhibits reduced efflorescence 失效
    减少风化风化建筑材料和建筑材料风化的方法

    公开(公告)号:US5681385A

    公开(公告)日:1997-10-28

    申请号:US633696

    申请日:1996-04-18

    摘要: Efflorescence of building material, such as portland cement based building products, masonry, brick, concrete, and mortar, can be retarded by contacting the building material with polyvinylalcohol (PVOH). The PVOH may be dissolved in solvent, preferably water, and either applied to a surface of the building material, or added to the components that form the building material. The PVOH has a hydrolysis percentage above about 90%.

    摘要翻译: 通过使建筑材料与聚乙烯醇(PVOH)接触,可以阻止建筑材料如波特兰水泥基建筑产品,砖石,砖,混凝土和砂浆的起泡。 PVOH可以溶解在溶剂中,优选溶解在水中,并且可以施加到建筑材料的表面,或者添加到构成建筑材料的组分中。 PVOH的水解百分比高于约90%。