Hi,
I am a new member of the mailing list. My name is Maria Chrysochoou and I am a ph.D. student in Environmental Engineering at Stevens Institute of Technology, USA. I deal with soils, cements and cementitious systems in my research and currently use Rietveld to study the mineralogy of a cementitious waste. I use the Jade software by Materials Data Inc. I have the following problem, if anyone can provide some insight: The cementitious system I study contains common cement phases, such as ferrite and periclase, and several alteration products, which have much lower absorption coefficients. The problem is that the system contains temperature sensitive phases and we are forced to hand-grind our samples down to a #400 sieve (37 μm). We have not managed to reduce the particle size further manually. I have two questions: 1) Would you recommend the micronizing mill for a high-pH, temperature-sensitive system that contains a lot of Al-phases? How would you suggest to deal with the microabsorption problem? 2) Would you trust Rietveld results without microabsorption correction at this particle size (37 μm)? Thanks, Maria Chrysochoou W.M. Keck Geoenvironmental Laboratory Stevens Institute of Technology Tel.: +1 201 216 8773 Fax: +1 201 216 8212 E-mail: [EMAIL PROTECTED]
<<attachment: winmail.dat>>
