Sacrificial agents for fly ash concrete
    8.
    发明授权
    Sacrificial agents for fly ash concrete 有权
    粉煤灰混凝土牺牲剂

    公开(公告)号:US07892349B2

    公开(公告)日:2011-02-22

    申请号:US12364380

    申请日:2009-02-02

    IPC分类号: C04B18/06

    摘要: A method of producing cementitious mixtures containing fly ash as one of the cementitious components, under air entrainment conditions. 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 sacrificial agent is also included in the mixture. The sacrificial agent is a material or mixture of materials that is not required to act as an air entrainment agent but interacts preferentially with components of the fly ash that otherwise neutralize, repress or depress the activity of the air entrainment agent. The invention includes cementitious mixtures and hardened concretes resulting from the method and fly ash treated with sacrificial agent, or air entrainment agent/sacrificial agent combinations, and processes for selecting suitable sacrificial agents.

    摘要翻译: 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牺牲剂。 牺牲剂是材料或材料的混合物,其不需要用作空气夹带剂,但优先与飞灰的组分相互作用,否则中和,压制或降低空气夹带剂的活性。 本发明包括水泥混合物和由该方法产生的硬化混凝土和用牺牲剂处理的飞灰,或空气夹带剂/牺牲剂组合,以及用于选择合适的牺牲剂的方法。

    Sacrificial agents for fly ash concrete
    9.
    发明申请
    Sacrificial agents for fly ash concrete 有权
    粉煤灰混凝土牺牲剂

    公开(公告)号:US20040206276A1

    公开(公告)日:2004-10-21

    申请号:US10762762

    申请日:2004-01-22

    IPC分类号: C04B014/00 C04B018/06

    摘要: A method of producing cementitious mixtures containing fly ash as one of the cementitious components, under air entrainment conditions. 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 sacrificial agent is also included in the mixture. The sacrificial agent is a material or mixture of materials that is not required to act as an air entrainment agent but interacts preferentially with components of the fly ash that otherwise neutralize, repress or depress the activity of the air entrainment agent. The invention includes cementitious mixtures and hardened concretes resulting from the method and fly ash treated with sacrificial agent, or air entrainment agent/sacrificial agent combinations, and processes for selecting suitable sacrificial agents.

    摘要翻译: 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牺牲剂。 牺牲剂是材料或材料的混合物,其不需要用作空气夹带剂,但优先与飞灰的组分相互作用,否则中和,压制或降低空气夹带剂的活性。 本发明包括水泥混合物和由该方法产生的硬化混凝土和用牺牲剂处理的飞灰,或空气夹带剂/牺牲剂组合,以及用于选择合适的牺牲剂的方法。