公开(公告)号：EP0219952A1

公开(公告)日：1987-04-29

申请号：EP86306761.7

申请日：1986-09-02

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Sherif, Fawzy Gamaleldin ,  Tieckelmann, Robert Hugo

IPC: C04B28/34

CPC classification number: C04B28/346 ,  C04B14/06 ,  C04B14/08 ,  C04B14/304 ,  C04B20/1055 ,  C04B22/0013 ,  C04B24/06 ,  C04B40/00 ,  C04B40/06

Abstract: Improved magnesium phosphate fast-setting cementi­tious compositions containing a synergistic combination of an oxy-boron compound and hydroxycarboxylic acid, or its salt or acid derivative. These compositions form a hardened mass when water is added at ambient temperatures. The incorporation of the oxy-boron compound and hydroxy­carboxylic acid, or its salt or acid derivative within these compositions retards the initial setting time, increases the early compressive strength of the resulting hardened mass by allowing a reduced amount of water to be added to the compositions and increases the final compressive strength. These compositions include a solid activator containing a P₂O₅ material, e.g. ammonium phosphate fertilizer, absorbed onto a porous material, e.g. diatomaceous earth.

Abstract translation: 含有氧 - 硼化合物和羟基羧酸或其盐或酸衍生物的协同组合的改进的磷酸镁快速凝固水泥组合物。 当在环境温度下加入水时，这些组合物形成硬化物质。 在这些组合物中引入氧 - 硼化合物和羟基羧酸或其盐或酸衍生物延迟了初始凝固时间，通过允许减少量的水加入到组合物中来增加所得硬化物质的早期抗压强度 并提高最终抗压强度。 这些组合物包括含有P2O5材料的固体活化剂，例如 磷酸铵肥料，吸收到多孔材料上，例如 硅藻土。