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Research on Effect of Grinding Aids on the Steel Slag Cementitious Activity

Wu Gang Shang Jianli(School of Materials and Mineral Resources,Xi'an University of Architecture Technology,Xi'an,Shaanxi 710055)  
On the basis of the best grinding time determined under the circumstance of no grinding aids.Grinding aids of triethanolamine,glycol,glycerol and triisopropanolamine were selected,aiming to find out the effect on steel slag activity index,specific surface area and pore-size distribution.The results showed that the adding of grinding aids could improve the pore structure of steel slag dramatically,so as to improve the specific surface area,gelling activity.Experiment got the reasonable dosage of four grinding aids,were 0.03%,0.06%,0.015%,0.06% respectively.
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