Determination of Crystallinity of Alkali Activated Flyash by XRD and FTIR Studies
Alkali activation of a flyash causes dissolution of its mineral constituents and also,significant transition in the characteristics of the residue.As a result,the residue attains the crystallinity,which is different from the ash.In order to quantify the final crystallinity,peak intensity of a mineral present in the X-ray diffractograms (XRD) of these samples has been demonstrated to be a useful parameter.In this context this paper presents a methodology to determine crystallinity of the residue by employing XRD and the Fourier transform infrared (FTIR) analysis of these samples.Also,this study establishes that such activation causes significant changes in the structural framework,which confirms formation of flyash zeolites (viz.,Na-P1,hydroxysodalite and cancrinite),as well.
crystallinity peak intensity wave number flyash residue
D.N.Singh Bhagwanjee Jha Kadali Srinivas
Department of Civil Engineering,Indian Institute of Technology,Bombay Powai,Mumbai,Maharashtra,India Research Scholar,Civil Engineering Department,Indian Institute of Technology,Bombay,Powai,Mumbai-400
国际会议
北京
英文
477-481
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）