A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of concrete preparation, and discloses a high-performance concrete admixture and a preparation method thereof, the high-performance concrete admixture is composed of the following components by mass: 9-15 parts of limestone, 6-10 parts of blast furnace water-quenched slag, 5-6 parts of kaolin, 4-5 parts of desulfurized gypsum, 2-4 parts of alumina, 2-3 parts of a synergist, 1-3 parts of carbon powder, and 1-2 parts of nano silica. The carbon powder is physically treated by utilizing the characteristics of dispersity promotion, defoaming property, rheological property and the like of silicon dioxide, the excellent properties of dispersity promotion, enhancement, defoaming, rheology, sagging prevention and the like are shown in the material, the dispersity of all the components in concrete can be improved, and the viscosity and gas content of a mixture are reduced, so that the working performance and the post-hardening mechanical property of the concrete mixture are improved. The preparation process is simple, raw materials are easy to obtain, and cost is low.
本发明属于混凝土制备技术领域，公开了一种高性能混凝土掺合料及其制备方法，所述高性能混凝土掺合料按照质量份数由石灰石9～15份、高炉水淬矿渣6～10份、高岭土5～6份、脱硫石膏4～5份、氧化铝2～4份、增效剂2～3份、碳粉1～3份、纳米二氧化硅1～2份组成。本发明利用二氧化硅的促分散性、消泡性、流变性等特性对碳粉进行物理，在材料中表现出卓越的促分散、增强、消泡、流变、防流挂等性质，可提高各组分在混凝土中的分散性，降低拌和物的粘度、含气量，从而改善混凝土拌和物工作性能和硬化后力学性能。本发明制备工艺简单，原材料易得，成本低。
The invention belongs to the technical field of concrete preparation, and discloses a high-performance concrete admixture and a preparation method thereof, the high-performance concrete admixture is composed of the following components by mass: 9-15 parts of limestone, 6-10 parts of blast furnace water-quenched slag, 5-6 parts of kaolin, 4-5 parts of desulfurized gypsum, 2-4 parts of alumina, 2-3 parts of a synergist, 1-3 parts of carbon powder, and 1-2 parts of nano silica. The carbon powder is physically treated by utilizing the characteristics of dispersity promotion, defoaming property, rheological property and the like of silicon dioxide, the excellent properties of dispersity promotion, enhancement, defoaming, rheology, sagging prevention and the like are shown in the material, the dispersity of all the components in concrete can be improved, and the viscosity and gas content of a mixture are reduced, so that the working performance and the post-hardening mechanical property of the concrete mixture are improved. The preparation process is simple, raw materials are easy to obtain, and cost is low.
本发明属于混凝土制备技术领域，公开了一种高性能混凝土掺合料及其制备方法，所述高性能混凝土掺合料按照质量份数由石灰石9～15份、高炉水淬矿渣6～10份、高岭土5～6份、脱硫石膏4～5份、氧化铝2～4份、增效剂2～3份、碳粉1～3份、纳米二氧化硅1～2份组成。本发明利用二氧化硅的促分散性、消泡性、流变性等特性对碳粉进行物理，在材料中表现出卓越的促分散、增强、消泡、流变、防流挂等性质，可提高各组分在混凝土中的分散性，降低拌和物的粘度、含气量，从而改善混凝土拌和物工作性能和硬化后力学性能。本发明制备工艺简单，原材料易得，成本低。
High-performance concrete admixture and preparation method thereof
一种高性能混凝土掺合料及其制备方法
2021-04-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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