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Trace element analysis of belite in hardened cement bonded materials using electron microprobe analysis

Annette Schimrosczyk, Juergen Koepke and Frank Schmidt-Doehl
Trace element analysis of belite in hardened cement bonded materials using electron microprobe analysis
European Journal of Mineralogy (February 2007) 19 (1): 105-112

Abstract

This study presents an optimised analytical procedure for quantitative trace element analysis of belite crystals in hardened cement bonded materials by electron microprobe and its application. Within this project, trace element concentrations in belite crystals of 22 cement bonded materials were determined. In each sample 7 to 14 belite crystals were analysed to determine the concentrations of the elements Ca, Si (matrix elements), Na, Al, K, Ti, Fe, Mg, P, S, Zn, Sr, Pb, V, Cr, Mn, Ni, and Ba (potential trace elements) with a beam current of 15 and 120 nA and a total counting time of 30 minutes. Trace elements show total concentrations between 4 and 8 wt% of the oxides. Na, Al, K, Ti, Fe, Mg, S and Sr show high concentrations generally above 1000 ppm. P, Mn and Ba are generally within the 100-500 ppm level while Zn, V and Cr are below 100 ppm. Pb and Ni are below the limits of detection. The results show that trace element distribution of belite in each of the used cement materials has its characteristic trend. This opens up interesting perspectives for testing institutions, e.g. to evaluate, whether two cement bonded specimens are of the same origin or not.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 19
Serial Issue: 1
Title: Trace element analysis of belite in hardened cement bonded materials using electron microprobe analysis
Affiliation: Universitaet Hannover, Institut fuer Mineralogie, Hannover, Federal Republic of Germany
Pages: 105-112
Published: 200702
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 28
Accession Number: 2007-084270
Categories: General geochemistry
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables
Secondary Affiliation: TU Braunschweig, DEU, Federal Republic of Germany
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200739
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