Porous, Permeable Metal-Cement Based Concretes and Methods for Making Same

    公开(公告)号:US20230133285A1

    公开(公告)日:2023-05-04

    申请号:US17300773

    申请日:2021-11-01

    摘要: A method for manufacturing a concrete product includes providing a metal-based cementing agent, and an acid-based cement reacting agent of the form HnXOm, where “X” is an element selected from group consisting of phosphorous, carbon, sulfur and boron, “n” and “m” are selected so that the cement reacting agent is an acid, and “X” will bond with the metal-based cementing agent to form a metal cement. The method further includes providing an aggregate defined by an exposed surface area having metallic aggregate linking elements thereon which can chemically bond with “X” in the presence of the acid-based cement reacting agent, and providing a hydroxide-supplying additive. The method includes combining together the metal-based cementing agent, the acid-based cement reacting agent, the aggregate and the hydroxide-supplying additive, and allowing the metal-based cementing agent and the acid-based cement reacting agent to react and bond with the aggregate to form the concrete product.

    Low pH colloidal silica compositions for application to concrete
    7.
    发明授权
    Low pH colloidal silica compositions for application to concrete 有权
    低pH胶体二氧化硅组合物用于混凝土

    公开(公告)号:US09272951B1

    公开(公告)日:2016-03-01

    申请号:US14678959

    申请日:2015-04-04

    摘要: A composition for hardening concrete that has a pH of less than 10, and may have a pH of 8 or less. Thus, the hardening composition may be free of or substantially free of alkaline materials. The hardening composition is water-based and includes silica particles and stabilizer, which may be present on portions of the surfaces of the silica particles. The stabilizer may be aluminum-based (e.g., it may comprise alumina, etc.). In use, the hardening composition is applied to the surface of concrete, either alone, with curing compounds, or as part of a polishing process. Any residue that remains on the treated surface may simply be swept, blown, or sprayed away.

    摘要翻译: 用于硬化混凝土的组合物,其具有小于10的pH,并且可以具有8或更低的pH。 因此,硬化组合物可以不含或基本上不含碱性材料。 硬化组合物是水性的,并且包括二氧化硅颗粒和稳定剂,其可以存在于二氧化硅颗粒的表面的部分上。 稳定剂可以是基于铝的(例如,它可以包括氧化铝等)。 在使用中,硬化组合物单独施用于混凝土表面,与固化化合物一起施加,或作为抛光工艺的一部分。 残留在被处理表面上的任何残留物都可以简单地扫过,吹或喷掉。

    SET ACCELERATOR AND TECHNIQUE FOR SPRAYING WITH THE SAME
    10.
    发明申请
    SET ACCELERATOR AND TECHNIQUE FOR SPRAYING WITH THE SAME 有权
    设置加速器和技术,用于喷雾

    公开(公告)号:US20100072294A1

    公开(公告)日:2010-03-25

    申请号:US12447472

    申请日:2007-11-07

    IPC分类号: C04B11/28 C04B28/06 C04B22/04

    摘要: To provide a quick-setting admixture for spraying and a spraying method, which are effective to prevent solidification of a quick-setting admixture slurried in a quick-setting admixture-adding tool.A slurry quick-setting admixture comprising an alkaline earth metal carbonate, a water-soluble acidic substance, calcium aluminate, an alkali metal sulfate, and water; and a quick-setting cement concrete comprising such a slurry quick-setting admixture and cement concrete.The slurry quick-setting admixture may further contain calcium sulfate, calcium hydroxide and/or aluminum hydroxide, a retarder, etc. The spraying method comprises mixing water and a powder quick-setting admixture comprising an alkaline earth metal carbonate, a water-soluble acidic substance, calcium aluminate and an alkali metal sulfate, to form a slurry quick-setting admixture, mixing this slurry quick-setting admixture with cement concrete to form a quick-setting cement concrete, and spraying this quick-setting cement concrete.Further, a quick-setting admixture for spraying which comprises a liquid quick-setting admixture, and a powder admixture comprising a blowing agent such as an alkaline earth metal carbonate, and calcium aluminate, wherein the powder admixture further contains calcium sulfate or an alkali metal-containing substance, and wherein the liquid quick-setting admixture further contains an alkali metal element or a compound having a fluorine element. The quick-setting admixture for spraying wherein the liquid quick-setting admixture and the powder admixture are joined and mixed in a slurry form.

    摘要翻译: 提供用于喷雾和喷涂方法的速凝混合物,其有效地防止在快速凝固添加工具中制浆的快速凝固混合物的固化。 一种浆料速凝混合物,其包含碱土金属碳酸盐,水溶性酸性物质,铝酸钙,碱金属硫酸盐和水; 和一种速凝水泥混凝土,包括这种浆料速凝混合物和水泥混凝土。 浆料速凝混合物还可以含有硫酸钙,氢氧化钙和/或氢氧化铝,缓凝剂等。喷雾方法包括将水和粉末速凝混合物混合,其中包含碱土金属碳酸盐,水溶性酸性 物质,铝酸钙和碱金属硫酸盐,形成浆料快速凝固混合物,将该浆料速凝混合物与水泥混凝土混合,形成快速凝固水泥混凝土,并喷涂该速凝水泥混凝土。 此外,一种喷雾速凝混合物,其包括液体速凝混合物,以及包含发泡剂如碱土金属碳酸盐和铝酸钙的粉末混合物,其中粉末混合物还含有硫酸钙或碱金属 并且其中液体快速凝固混合物还含有碱金属元素或具有氟元素的化合物。 用于喷雾的速凝混合物,其中液体速凝混合物和粉末混合物以浆料形式接合和混合。