Clay-bearing manufactured sands for hydratable cementitious compositions
    5.
    发明授权
    Clay-bearing manufactured sands for hydratable cementitious compositions 有权
    用于可水合水泥组合物的粘土制造砂

    公开(公告)号:US08815009B2

    公开(公告)日:2014-08-26

    申请号:US13879986

    申请日:2011-10-17

    摘要: The present invention provides a method for making sand compositions wherein manufactured sand particles are pretreated with a clay-mitigating polycation and blended with natural sand particles that have washed to remove fines such that at least 90% of the natural sand particles are retained on a 75 micron sieve. Methods of the invention also involve the use of the blended pretreated sand for making concrete wherein the sand is combined with cement, a polycarboxylate type dispersant, a further amount of clay-mitigating polycation compound, and at least one hydryoxyl or hydroxyl carboxylic acid or salt compound.

    摘要翻译: 本发明提供了一种制备砂组合物的方法,其中制造的砂粒用减粘剂进行预处理,并与已经洗涤以除去细粒的天然砂粒混合,使得至少90%的天然砂粒保留在75 微米筛。 本发明的方法还涉及使用混合的预处理砂来制造混凝土,其中砂与水泥组合,多羧酸盐型分散剂,进一步量的减粘剂聚阳离子化合物和至少一种羟基氧基或羟基羧酸或盐 复合。

    Clay-Bearing Manufactured Sands for Hydratable Cementitious Compositions
    7.
    发明申请
    Clay-Bearing Manufactured Sands for Hydratable Cementitious Compositions 有权
    用于可水合水泥组合物的粘土轴承制造砂带

    公开(公告)号:US20130263761A1

    公开(公告)日:2013-10-10

    申请号:US13879986

    申请日:2011-10-17

    IPC分类号: C04B20/02

    摘要: The present invention provides a method for making sand compositions wherein manufactured sand particles are pretreated with a clay-mitigating polycation and blended with natural sand particles that have washed to remove fines such that at least 90% of the natural sand particles are retained on a 75 micron sieve. Methods of the invention also involve the use of the blended pretreated sand for making concrete wherein the sand is combined with cement, a polycarboxylate type dispersant, a further amount of clay-mitigating polycation compound, and at least one hydryoxyl or hydroxyl carboxylic acid or salt compound.

    摘要翻译: 本发明提供了一种制备砂组合物的方法,其中制造的砂粒用减粘剂进行预处理,并与已经洗涤以除去细粒的天然砂粒混合,使得至少90%的天然砂粒保留在75 微米筛。 本发明的方法还涉及使用混合的预处理砂来制造混凝土,其中砂与水泥组合,多羧酸盐型分散剂,进一步量的减粘剂聚阳离子化合物和至少一种羟基氧基或羟基羧酸或盐 复合。