Process for Remediating Alkali Silica Reactions Using a Micro Silica and Ozonation
    1.
    发明申请
    Process for Remediating Alkali Silica Reactions Using a Micro Silica and Ozonation 审中-公开
    使用微二氧化硅修复碱性二氧化硅反应的方法和臭氧化

    公开(公告)号:US20160280596A1

    公开(公告)日:2016-09-29

    申请号:US14798052

    申请日:2015-07-13

    申请人: VHSC, LTD.

    IPC分类号: C04B7/02

    摘要: A method for remediating alkali silica reactions prevents the reaction from starting by mixing a micro silica additive to an ozonated cement mix, with the micro silica constituting a micro sand that has no more than a 15-18 micron mean particle size and a top size of around 30-40 microns. In one embodiment the micro silica mixed at 8% results in a reduction in mortar expansion on average greater than 96% when used with ozonated Class C fly ash.

    摘要翻译: 用于修复碱性二氧化硅反应的方法通过将微量二氧化硅添加剂与臭氧化水泥混合物混合来防止反应开始,微量二氧化硅构成微米级,其微米尺寸不超过15-18微米,平均颗粒尺寸不超过 约30-40微米。 在一个实施方案中,以8%混合的微二氧化硅导致当与臭氧化的C类飞灰一起使用时平均大于96%的砂浆膨胀减少。

    Amine sacrificial agents and methods and products using same
    2.
    发明授权
    Amine sacrificial agents and methods and products using same 有权
    胺牺牲剂和方法与产品使用相同

    公开(公告)号:US08652249B2

    公开(公告)日:2014-02-18

    申请号:US13725076

    申请日:2012-12-21

    IPC分类号: C04B16/00

    摘要: A method of producing cementitious mixtures containing fly ash as one of the cementitious components, under air entrainment conditions is described. The method involves forming a mixture comprising water, cement, fly ash, optionally other cementitious materials, aggregate, conventional chemical admixtures, and an air entrainment agent and agitating the mixture to entrain air therein. Additionally, at least one amine sacrificial agent is included in the mixture. The cementitious mixtures and hardened concretes resulting from the method and fly ash treated with sacrificial agent, or air entrainment agent/sacrificial agent combinations, are also described.

    摘要翻译: 描述了在空气夹带条件下生产含有飞灰的水泥混合物作为水泥组分之一的方法。 该方法包括形成包含水,水泥,飞灰,任选的其它胶结材料,骨料,常规化学混合物和空气夹带剂的混合物,并搅拌混合物以夹带空气。 此外,混合物中还包括至少一种胺牺牲剂。 还描述了由方法产生的水泥混合物和硬化混凝土以及用牺牲剂处理的飞灰或空气夹带剂/牺牲剂组合。

    Electrically conductive concrete and controlled low strength materials having spent carbon sorbent
    5.
    发明授权
    Electrically conductive concrete and controlled low strength materials having spent carbon sorbent 有权
    具有废碳吸附剂的导电混凝土和受控低强度材料

    公开(公告)号:US07578881B2

    公开(公告)日:2009-08-25

    申请号:US11402452

    申请日:2006-04-12

    申请人: Bruce W. Ramme

    发明人: Bruce W. Ramme

    IPC分类号: C04B18/08

    摘要: Compositions are provided for increasing the electrical conductivity of concrete or controlled low-strength materials (flowable fill). One composition sets to produce a concrete and includes portland cement, water, aggregate, and particulate matter including a sorbent and a contaminant absorbed, adsorbed or entrapped by the sorbent. The sorbent may be activated carbon, and the contaminant may be mercury or a compound containing mercury. Another composition is a self-compacting, cementitious flowable fill composition that includes portland cement, water, and particulate matter including a sorbent and a contaminant absorbed, adsorbed or entrapped by the sorbent. The sorbent may activated carbon, and the contaminant may be mercury or a compound containing mercury. The compositions may also include carbon fibers.

    摘要翻译: 提供组合物用于提高混凝土或受控低强度材料(可流动填充物)的导电性。 一种组合物用于生产混凝土,并且包括波特兰水泥,水,骨料和颗粒物质,包括吸附剂和被吸附剂吸收,吸附或捕获的污染物。 吸附剂可以是活性炭,污染物可以是汞或含有汞的化合物。 另一种组合物是自密实的水泥可流动填充组合物,其包括硅酸盐水泥,水和颗粒物质,包括吸附剂和被吸附剂吸收或吸附的污染物。 吸附剂可以活化碳,污染物可以是汞或含有汞的化合物。 组合物还可以包括碳纤维。

    ULTRALOW-CARBON CLINKER-FREE CEMENT, METHOD FOR PREPARING SAME AND APPLICATION OF ULTRALOW-CARBON CLINKER-FREE CEMENT

    公开(公告)号:US20230391673A1

    公开(公告)日:2023-12-07

    申请号:US18255044

    申请日:2022-09-16

    发明人: Jian ZHOU Mingfeng XU

    IPC分类号: C04B28/14 C04B40/00

    摘要: The disclosure provides an ultralow-carbon clinker-free cement, prepared from the following raw materials: granulated blast-furnace slag, gypsum and calcium oxide-based materials. The granulated blast-furnace slag accounts for 65%-95% of the total weight of the raw materials, the gypsum accounts for 4.5%-34.5% of the total weight of the raw materials, and the balance is the calcium oxide-based material. A weight percentage of calcium oxide and/or calcium hydroxide in the total weight of the raw materials is controlled to be 0.05%-0.75%. The disclosure further provides a method for preparing the ultralow-carbon clinker-free cement and application of the ultralow-carbon clinker-free cement in the preparation of concrete, mortar or cement products. The ultralow-carbon clinker-free cement of the disclosure has the advantages of high early strength, ultrahigh long-term strength, low shrinkage, carbonation resistance, low carbon emissions, etc.

    Method of removing unburned carbon from coal ash
    9.
    发明授权
    Method of removing unburned carbon from coal ash 失效
    从煤灰中去除未燃碳的方法

    公开(公告)号:US08051985B2

    公开(公告)日:2011-11-08

    申请号:US12448139

    申请日:2006-12-11

    IPC分类号: B03B7/00

    摘要: A method comprising; a step in which unburned carbon contained in coal ash is mechanically separated with a classifier; a step in which the coal ash from which part of the unburned carbon has been removed with the classifier is pulverized or disaggregated with a pulverizer; a step in which water is added to the coal ash pulverized or disaggregated with the pulverizer to obtain a slurry; a step in which a scavenger is added to the slurried coal ash; a step in which a shear force is applied to the slurry containing the scavenger to cause the scavenger to selectively adhere to the unburned carbon contained in the coal ash; a step in which a foaming agent is added to the slurry in which the scavenger has adhered to the unburned carbon; and a step in which the unburned carbon is floated on the slurry containing the foaming agent together with bubbles and is separated.

    摘要翻译: 一种方法,包括: 将煤灰中所含的未燃碳与分级器机械分离的步骤; 使用分选机将未燃碳部分从其中除去的煤灰用粉碎机粉碎或分解的步骤; 向用粉碎机粉碎或分解的煤灰中加入水以获得浆料的步骤; 清除剂添加到浆状煤灰中的步骤; 对包含清除剂的浆料施加剪切力以使清除剂选择性地粘附到煤灰中所含的未燃烧碳的步骤; 将清除剂附着于未燃碳的浆料中添加发泡剂的工序; 以及将未燃烧碳与气泡一起漂浮在含有发泡剂的浆料上并分离的步骤。