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X-Ray Fluorescence Analysis of Portland Cement Through the Use of Experimentally Determined Correction Factors

Published online by Cambridge University Press:  06 March 2019

C. H. Anderson ,
J. E. Mander  and
J. W. Leitner
C. H. Anderson
Affiliation:
Applied Research Laboratories
J. E. Mander
Affiliation:
Southwestern Portland Cement
J. W. Leitner
Affiliation:
Applied Research Laboratories
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Abstract

Correction factors, termed α-factors, similar to those defined by LaChance and Traill have been generated by the addition of variable, known amounts of individual oxides, or other compounds, to a base cement sample and measuring the x-ray intensities of the elements of interest. The effects of all common constituents of cement on the determination of CaO, SiO2 and Al2O3 were found. Factors for rhodium and chromium primary radiation were determined and, in general, showed small but significant differences. The factors for rhodium at 50kV and 30kV were substantia11y identical. The correction factors were tested through the use of the NBS 1011- 1016 cements as reference standards to analyze the new proposed NBS cement series. The correction factors not only furnished improved calibration curves, but also allowed the determination of CaO, Al2O3 and SiO2 with an average deviation of less than 0.2% (absolute) from the provisional values furnished with the standard samples.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 17: Twenty-Second Annual Conference on Applications of X-ray Analysis, August 22-24, 1973 , 1973 , pp. 214 - 224
Copyright
Copyright © International Centre for Diffraction Data 1973

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References

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