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The invention discloses a rapid repairing material based on a magnesium phosphate cement-based sulfate-resistant coating and a preparation method. The rapid repairing material comprises the following components in parts by mass: 68-73 parts of magnesium phosphate cement-based gelling agent powder, 16-21 parts of phosphate, 9-12 parts of a composite retarder, and 2-4 parts of sodium silicate, the magnesium phosphate cement-based gelling agent powder comprises the following components in parts by mass: 82-88 parts of over-burnt magnesia powder, 4-8 parts of nanoscale SiO2 powder, 3-7 parts of nanoscale CaO powder, and 5-8 parts of metakaolin; and the composite retarder is composed of borax, phosphate dodecahydrate and polyphosphate. The magnesium phosphate cement-based rapid repairing material prepared by the invention has the characteristics of rapid setting and hardening, high early strength, strong sulfate corrosion resistance, strong wear resistance, good cohesiveness and the like, has strong cohesiveness with an old concrete structure matrix, and is simple in preparation process, convenient to use, energy-saving and environment-friendly.
本发明公开了一种基于磷酸镁水泥基抗硫酸盐涂层快速修补材料及制备方法，含有的组分及质量份数如下：磷酸镁水泥基胶凝剂粉料68～73；磷酸盐16～21；复合缓凝剂9～12；硅酸钠2～4；磷酸镁水泥基胶凝剂粉料含有的组分及质量份数包括：过烧氧化镁粉82～88；纳米级SiO2粉4～8；纳米级CaO粉3～7；偏高岭土5～8；复合缓凝剂由硼砂、十二水合磷酸盐、聚磷酸盐构成。本发明制备的磷酸镁水泥基快速修补材料具有凝结硬化快、早期强度高、抗硫酸盐侵蚀性强、耐磨性强、粘结性好等特点，其与旧混凝土结构基体粘结性强，该发明制备工艺简单、使用方便、节能环保。
The invention discloses a rapid repairing material based on a magnesium phosphate cement-based sulfate-resistant coating and a preparation method. The rapid repairing material comprises the following components in parts by mass: 68-73 parts of magnesium phosphate cement-based gelling agent powder, 16-21 parts of phosphate, 9-12 parts of a composite retarder, and 2-4 parts of sodium silicate, the magnesium phosphate cement-based gelling agent powder comprises the following components in parts by mass: 82-88 parts of over-burnt magnesia powder, 4-8 parts of nanoscale SiO2 powder, 3-7 parts of nanoscale CaO powder, and 5-8 parts of metakaolin; and the composite retarder is composed of borax, phosphate dodecahydrate and polyphosphate. The magnesium phosphate cement-based rapid repairing material prepared by the invention has the characteristics of rapid setting and hardening, high early strength, strong sulfate corrosion resistance, strong wear resistance, good cohesiveness and the like, has strong cohesiveness with an old concrete structure matrix, and is simple in preparation process, convenient to use, energy-saving and environment-friendly.
本发明公开了一种基于磷酸镁水泥基抗硫酸盐涂层快速修补材料及制备方法，含有的组分及质量份数如下：磷酸镁水泥基胶凝剂粉料68～73；磷酸盐16～21；复合缓凝剂9～12；硅酸钠2～4；磷酸镁水泥基胶凝剂粉料含有的组分及质量份数包括：过烧氧化镁粉82～88；纳米级SiO2粉4～8；纳米级CaO粉3～7；偏高岭土5～8；复合缓凝剂由硼砂、十二水合磷酸盐、聚磷酸盐构成。本发明制备的磷酸镁水泥基快速修补材料具有凝结硬化快、早期强度高、抗硫酸盐侵蚀性强、耐磨性强、粘结性好等特点，其与旧混凝土结构基体粘结性强，该发明制备工艺简单、使用方便、节能环保。
Rapid repairing material based on magnesium phosphate cement-based sulfate-resistant coating and preparation method
基于磷酸镁水泥基抗硫酸盐涂层快速修补材料及制备方法
MA JUN (author)
2021-06-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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