典型文献
Effect of calcination temperature on the pozzolanic activity of maize straw stem ash treated with portlandite solution
文献摘要：
The effect of calcination temperature on the pozzolanic activity of maize straw stem ash (MSSA) was evaluated. The MSSA samples calcined at temperature values of 500, 700, and 850℃ were dissolved in portlandite solution for 6 h, thereby obtaining residual samples. The MSSA and MSSA residual samples were analyzed using Fourier transform infrared spectroscopy, X-ray powder diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy to determine vibration bonds, minerals, microstructures, and Si 2p trans-formation behavior. The conductivity, pH value, and loss of conductivity with dissolving time of the MSSA-portlandite mixed solution were also determined. The main oxide composition of MSSA was silica and potassium oxide. The dissolution of the Si4+ content of MSSA at 500℃ was higher than those of the other calcination temperatures. The conductivity and loss of conductivity of MSSA at 700℃ were higher than those of the other calcination temperatures at a particular dissolving time due to the higher KCl content in MSSA at 700℃. C–S–H was easily identified in MSSA samples using X-ray powder diffraction, and small cubic and nearly spherical particles of C–S–H were found in the MSSA residual samples. In conclusion, the optimum calcination temperature of MSSA having the best pozzolanic activity is 500℃, but excessive ag-glomeration must be prevented.
文献关键词：
中图分类号：
作者姓名：
Tingye Qi;Haochen Wang;Guorui Feng;Yujiang Zhang;Jinwen Bai;Yanna Han
作者机构：
College of Mining Technology,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Province Research Center of Green Mining Engineering Technology,Taiyuan 030024,China;Shanxi Coal-based Resources Green-efficient Mining Engineering Research Center,Taiyuan 030024,China;Key Laboratory of Shanxi Province for Mine Rock Strata Control and Disaster Prevention,Taiyuan 030024,China
文献出处：
引用格式：
[1]Tingye Qi;Haochen Wang;Guorui Feng;Yujiang Zhang;Jinwen Bai;Yanna Han-.Effect of calcination temperature on the pozzolanic activity of maize straw stem ash treated with portlandite solution)[J].矿物冶金与材料学报,2022(06):1161-1169
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Effect,calcination,pozzolanic,activity,maize,straw,stem,ash,treated,portlandite,effect,MSSA,was,evaluated,samples,calcined,values,were,dissolved,thereby,obtaining,residual,analyzed,using,Fourier,transform,infrared,spectroscopy,ray,powder,diffraction,scanning,microscopy,photoelectron,vibration,bonds,minerals,microstructures,2p,formation,behavior,conductivity,loss,dissolving,mixed,also,determined,main,oxide,composition,silica,potassium,dissolution,Si4+,content,higher,than,those,other,temperatures,particular,due,KCl,easily,identified,small,cubic,nearly,spherical,particles,found,In,conclusion,optimum,having,best,but,excessive,ag,glomeration,must,prevented
AB值：
0.456736
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