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    Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor
    1.
    发明授权
    Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor 有权

    公开(公告)号：US06391106B1

    公开(公告)日：2002-05-21

    申请号：US09912182

    申请日：2001-07-24

    申请人： John Moreau ,  Runhai Lu ,  Jeffrey R. Bury ,  Thomas M. Vickers, Jr.

    发明人： John Moreau ,  Runhai Lu ,  Jeffrey R. Bury ,  Thomas M. Vickers, Jr.

    IPC分类号： C04B2404

    摘要： A cementitious mixture comprises a hydraulic cement; greater than about 10% by weight of a pozzolanic cement replacement selected from fly ash, slag, natural pozzolans, and mixtures thereof, based on the weight of said hydraulic cement and cement replacement; and a compatabilizing admixture, wherein the compatabilizing admixture comprises a compatabilizing derivatized polycarboxylate polymer dispersant capable of acting as a water reducer, in combination with an accelerator. The derivatized polycarboxylate dispersant, alone or in combination with other derivatized polycarboxylate dispersants, is a polymer comprising units derived from at least one of a substituted carboxylic acid monomer and a substituted ethylenically unsaturated monomer, at least one of an N-polyoxyalkylene maleimide and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer, and optionally including an unsaturated hydrocarbon. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures.

    Cementitious dry cast mixture
    3.
    发明授权
    Cementitious dry cast mixture 有权
    水泥干混合物

    公开(公告)号：US06461425B2

    公开(公告)日：2002-10-08

    申请号：US09847693

    申请日：2001-05-02

    申请人： Heath Brown ,  Jeffrey R. Bury ,  Lan Huang ,  Runhai Lu ,  Jesse Osborne ,  Ken Sroka ,  Thomas M. Vickers, Jr.

    发明人： Heath Brown ,  Jeffrey R. Bury ,  Lan Huang ,  Runhai Lu ,  Jesse Osborne ,  Ken Sroka ,  Thomas M. Vickers, Jr.

    IPC分类号： C04B2412

    CPC分类号： C04B24/2647 ,  C04B24/163 ,  C04B24/243 ,  C04B24/26 ,  C04B24/2641 ,  C04B24/2652 ,  C04B24/2664 ,  C04B24/267 ,  C04B24/2688 ,  C04B24/2694 ,  C04B2103/408 ,  C04B2111/00068

    摘要： The present invention is directed to cementitious dry cast mixtures for forming cementitious articles, particularly a cementitious dry cast mixture containing a dispersant, wherein said dispersant is a derivatized polycarboxylate dispersant which is a polymer comprising units derived from at least a substituted carboxylic acid monomer or substituted ethylenically unsaturated monomer, and optionally including at least one of an unsaturated hydrocarbon, an N-polyoxyalkylene maleimide, and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer. The cementitious dry cast mixture has a reduced effective dose of dispersant; compacts and consolidates in response to vibration energy; reduces the cycle time in the production of articles manufactured from dry cast mixtures; provides for increased green strength, density, and early compressive strength; and improves the surface aesthetics of articles manufactured from dry cast mixtures. Additionally, a surface active agent/air entraining agent can be included in combination with the dispersant to provide for increased swipe effect.

    摘要翻译： 本发明涉及用于形成水泥质制品的水泥质干法浇铸混合物，特别是含有分散剂的水泥质干浇注混合物，其中所述分散剂是衍生化的聚羧酸酯分散剂，其是包含衍生自至少取代的羧酸单体或取代的单体的聚合物 烯键式不饱和单体，并且任选地包括不饱和烃，N-聚氧化烯马来酰亚胺和未取代的羧酸单体和烷氧基聚氧化烯伯胺取代的羧酸单体的缩合产物中的至少一种。 水泥质干法浇注混合物的分散剂有效剂量降低; 响应于振动能量紧凑和整合; 减少了由干式混合物制造的制品生产中的循环时间; 提供增加的生坯强度，密度和早期抗压强度; 并且改善了由干式混合物制造的制品的表面美观性。 此外，表面活性剂/加气剂可以与分散剂结合使用以提供增加的擦拭效果。