How to determine presence of free or Crystalline CaO in cementitious materials. Is there any simple methods to quantify them using XRD or similar characterization techniques.
You can determine it analytically, such as for example in
Article Rapid Techniques for Determination of Free Lime and Free Mag...
https://www.ideals.illinois.edu/bitstream/handle/2142/54043/studyofmethodsof00hadl.pdf?sequence=2
Instrumental techniques would include for example XRF
http://imcyc.com/biblioteca/ArchivosPDF/Automatizacion%20de%20plantas%20de%20cemento/4%20Cement%20Analysis%20Enhanced.pdf
https://tools.thermofisher.com/content/sfs/brochures/Free-Lime-Determination-Clinker.pdf
Dear Ms. Vibha ,
You can do that using XRD, but you need large # of data (high resolution). all you need is your xrd pattern, CIF file of you constituents, and do Rietveld analysis. you can done that using HSP software. please check out the attached figure and link bellow that would may help you..
https://www.researchgate.net/post/Free_lime_in_cement_clinkers_by_powder_XRD_peak_overlap_with_C2S
good luck
Mohammed
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