Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Liquid grinding aid for steel slag cement and preparation method of liquid grinding aid
The invention discloses a liquid grinding aid for steel slag cement. The liquid grinding aid comprises raw materials in percentage by mass as follows: 40%-55% of polymeric polyol, 5%-10% of sodium thiosulfate, 5%-10% of sodium silicate, 1%-5% of sodium carbonate and the balance of water, and the sum is 100%. According to the liquid grinding aid, polymeric polyol is adopted to replace more expensive triethanolamine, the material liquidity can be remarkably improved, the grinding efficiency of a grinder is improved, and the output of the grinders per hour is increased; sodium thiosulfate contained in the liquid grinding aid can have good inhibition effect on volume expansion of hardened paste of the steel slag cement; sodium silicate contained in the liquid grinding aid can stimulate the potential activity of steel slag, and 3-day strength and 28-day strength are increased on year-on-year basis; with the adoption of sodium carbonate, the steel slag cement setting time can be adjusted.
Liquid grinding aid for steel slag cement and preparation method of liquid grinding aid
The invention discloses a liquid grinding aid for steel slag cement. The liquid grinding aid comprises raw materials in percentage by mass as follows: 40%-55% of polymeric polyol, 5%-10% of sodium thiosulfate, 5%-10% of sodium silicate, 1%-5% of sodium carbonate and the balance of water, and the sum is 100%. According to the liquid grinding aid, polymeric polyol is adopted to replace more expensive triethanolamine, the material liquidity can be remarkably improved, the grinding efficiency of a grinder is improved, and the output of the grinders per hour is increased; sodium thiosulfate contained in the liquid grinding aid can have good inhibition effect on volume expansion of hardened paste of the steel slag cement; sodium silicate contained in the liquid grinding aid can stimulate the potential activity of steel slag, and 3-day strength and 28-day strength are increased on year-on-year basis; with the adoption of sodium carbonate, the steel slag cement setting time can be adjusted.
Liquid grinding aid for steel slag cement and preparation method of liquid grinding aid
LIU GUOHUA (Autor:in) / TANG HUIHUI (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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