Ceramics-Silikáty 48, (1) 34 - 39 (2004) |
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X-RAY QUANTITATIVE PHASE ANALYSIS OF RESIDUEM OF THE REFERENCE PORTLAND CLINKERS
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Pritula Ondrej 1, Smrčok Ľubomír 1, Ivan Jozef 2,
Iždinský Karol 2
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1 Institute of Inorganic Chemistry, Slovak Academy of Sciences
Dúbravská cesta 9, 845 36 Bratislava, Slovak Republic
2 Institute of materials and machine mechanics,
Račianska 75, 831 02, Bratislava, Slovak Republic
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Keywords: Quantitative phase analysis, Rietveld refinement, Portland clinker
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Residues obtained from the chemical treatment of three Reference Portland clinkers (8486, 8487 and 8488) were analyzed by
SEM and X-ray Rietveld quantitative phase analysis. It was found that the chemical treatment was not fully selective. Calculated
weight fractions were compared to the weight fraction intervals obtained from a previous analysis of complete clinkers.
It was found that in general the refinements based on the diffraction patterns of residues performed better than those based
on the patterns of complete clinkers, even though the calculated weight fraction ratios lie mostly within the intervals reported
previously. The most important conclusion for daily practice is that if one just wishes to achieve more reliable results in
X-ray quantitative phase analysis the improvement is not worth the time and work invested into the chemical treatment of the
clinkers. |
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