METHOD AND PLANT FOR THE MANUFACTURE OF BUILDING PRODUCTS
    16.
    发明申请
    METHOD AND PLANT FOR THE MANUFACTURE OF BUILDING PRODUCTS 审中-公开
    建筑产品制造方法与设备

    公开(公告)号:US20110183023A1

    公开(公告)日:2011-07-28

    申请号:US13082019

    申请日:2011-04-07

    IPC分类号: C04B41/81

    摘要: A plant and method for the manufacture of cementitious products, viz. cast concrete roof tiles (T), the plant comprising a mixing station where the constituents of a cementitious composition, less an air entraining agent, are admixed under atmospheric pressure and further mixed under a partial vacuum of 200 to 340 mBar after the addition of an air entraining agent, the plant also comprising a moulding station where the tiles (T) are cast in a gang-mould before being cured in a conventional autoclave for up to 10 hours at 45° C. The cured concrete roof tiles (T) are de-moulded after curing and conveyed to a surface preparation zone where a primer coat of a water based epoxy and a surface coating of a water based emulsion paint are applied to at least an upper surface (in use) of the cast concrete roof tiles (T). The admixed cementitious composition has a Ford Cup flow of between 40 and 60 seconds and a slump test of between 180 and 220 mm. In an alternative method, instead of applying a primer coat, the upper surfaces, in use, of the roof tiles T are subjected to abrasion by grit-blasting to remove a thin layer from the upper surfaces thereby facilitating the subsequent application thereto of a surface coating.

    摘要翻译: 一种用于制造水泥产品的设备和方法, 浇筑混凝土屋面瓦(T),该植物包括混合站,其中将水泥组合物的成分,较少的加气剂在大气压下混合,并在加入一种二氧化碳后在200至340mBar的部分真空下进一步混合 引气剂,该工厂还包括一个成型工位,其中瓦片(T)在45℃在常规高压釜中固化长达10小时之前,在模具中铸造。混凝土屋面瓦(T)为 在固化后进行脱模并输送到表面处理区域,其中将水性环氧树脂的底漆涂层和水性乳液漆的表面涂层施加到铸造混凝土屋顶瓦片的至少上表面(使用中) T)。 混合水泥组合物具有40-60秒的福特杯流量和180-220mm的坍落度试验。 在替代方法中,代替底漆涂层,在使用中,屋顶瓦片T的上表面通过喷砂进行磨损以从上表面移除薄层,从而便于随后向其施加表面 涂层。

    Protective system for concrete sewer applications
    19.
    发明授权
    Protective system for concrete sewer applications 有权
    混凝土下水道应用保护系统

    公开(公告)号:US07601390B1

    公开(公告)日:2009-10-13

    申请号:US11290223

    申请日:2005-12-01

    IPC分类号: B05D5/10

    摘要: This invention relates to a method of protecting concrete sewer pipe, manholes, lift stations, pump stations, wet wells, sewage treatment plant components, and septic tanks and/or septic tank components comprising coating said concrete items by rolling, spraying, or brushing on a coating system consisting essentially of a primer, intermediate coat and topcoat. Each coat is a polymeric coating prepared in situ by combining a hardener with a prepolymer formulation. The pepolymer is an amine-containing material, resulting in a polyurea-based coating. The chief advantages of the coating are that it can be applied utilizing conventional, simple equipment, and the increased drying time allows for excellent adhesion on the substrate. Also, it is a tough elastomeric material resistant to attack by water or the sulfuric acid microbial metabolic end-product.

    摘要翻译: 本发明涉及一种保护混凝土下水道管道,人孔,起升站,泵站,湿井,污水处理厂部件和化粪池和/或化粪池部件的方法,包括通过滚压,喷涂或刷涂来涂覆所述混凝土制品 基本上由底漆,中间涂层和面漆组成的涂料体系。 每个涂层是通过将固化剂与预聚物制剂组合而原位制备的聚合物涂层。 该聚合物是含胺材料,产生聚脲基涂层。 涂层的主要优点是可以使用常规的简单设备进行应用,并且增加的干燥时间允许在基材上优异的粘合性。 此外,它是一种耐水或硫酸微生物代谢终产物耐受的韧性弹性材料。