Experimental study on the effect of calcination on the volcanic ash activity of diatomite

2017 2nd International Seminar on Advances in Materials Science and Engineering

Xiao, Liguang^1 ; Pang, Bo^1

School of Materials Science and Engineering, Jilin Jianzhu University, Changchun

118, China^1

关键词: Combined water;    Specific surface;    Vacuum calcination;    Vacuum condition;    Volcanic ash;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012089/pdf
DOI  :  10.1088/1757-899X/231/1/012089

来源: IOP

【 摘 要 】

The volcanic ash activity of diatomite was studied under the conditions of aerobic calcination and vacuum calcination by the combined water rate method, it was characterized by XRD, BET and SEM. The results showed that the volcanic ash activity of diatomite under vacuum conditions was higher than that of aerobic calcination, 600°C vacuum calcination 2h, the combined water rate of diatomite-Ca(OH)2-H2O system was increased from 6.24% to 71.43%, the volcanic ash activity reached the maximum value, the specific surface.