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Modified superfine mineral slag micropowder with cement setting retarding effect and preparation method thereof
The invention relates to a modified superfine mineral slag micropowder with cement setting retarding effect, which is prepared from the following raw materials in parts by weight: 950-960 parts of mineral slag, 38-45 parts of electrolytic manganese slag, 0.2-0.4 part of triethanolamine, 0.1-0.3 part of triisopropanolamine, 0.2-0.3 part of polyether glycol, 0.2-0.4 part of 1,4-cyclohexanedimethanol, 0.5-0.8 part of nano polytetrafluoroethylene, 60-70 parts of desulfurized gypsum, 0.1-0.3 part of sodium hypophosphite and 0.3-0.5 part of sulfurized olefin cotton oil. By using the triethanolamine, triisopropanolamine and the like as the raw materials, the residual charge on the micropowder surface can be shielded, the Si-O bond rupture in the mineral slag can be promoted, and the micropowder agglomeration can be prevented, thereby saving the energy consumption. The nano polytetrafluoroethylene is utilized to lower the surface energy, prevent the particles from aggregation and enhance the dispersity of the micropowder. By using the electrolytic manganese slag, the modified superfine mineral slag micropowder has the cement setting retarding effect, and reduces the gypsum consumption.
Modified superfine mineral slag micropowder with cement setting retarding effect and preparation method thereof
The invention relates to a modified superfine mineral slag micropowder with cement setting retarding effect, which is prepared from the following raw materials in parts by weight: 950-960 parts of mineral slag, 38-45 parts of electrolytic manganese slag, 0.2-0.4 part of triethanolamine, 0.1-0.3 part of triisopropanolamine, 0.2-0.3 part of polyether glycol, 0.2-0.4 part of 1,4-cyclohexanedimethanol, 0.5-0.8 part of nano polytetrafluoroethylene, 60-70 parts of desulfurized gypsum, 0.1-0.3 part of sodium hypophosphite and 0.3-0.5 part of sulfurized olefin cotton oil. By using the triethanolamine, triisopropanolamine and the like as the raw materials, the residual charge on the micropowder surface can be shielded, the Si-O bond rupture in the mineral slag can be promoted, and the micropowder agglomeration can be prevented, thereby saving the energy consumption. The nano polytetrafluoroethylene is utilized to lower the surface energy, prevent the particles from aggregation and enhance the dispersity of the micropowder. By using the electrolytic manganese slag, the modified superfine mineral slag micropowder has the cement setting retarding effect, and reduces the gypsum consumption.
Modified superfine mineral slag micropowder with cement setting retarding effect and preparation method thereof
ZHENG QISHI (author)
2015-12-16
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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