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Root > Materials Chemistry > Materials Analytical Chemistry

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Materials Science: Analysis and Synthesis of Additives for Concrete / Mortar (1)

Materials Testing (37)

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Establishing X-ray diffraction count rates which are generally applicable for quantitative differential analysis of Portland cement clinker
Synthetic clinker phases, industrial clinker and cements were examined quantitatively using X-ray diffractometry to establish generally applicable count rates.
Hrsg.: H. Vaupel, ZKG International, 12/2001

Infrared spectroscopic process for building materials (German)
An infrared spectroscopic process is used to make a quantitative and qualitative determination of the mineral constituents of the building materials. The novelty is that: (a) the representative sample is removed from the material; (b) the sample is homogenised and a fraction is ground to powder in a tungsten carbide mill for 14-16 min; (c) the particles are mixed with a calcium bromide embedding agent suitable for IR spectroscopy and pressed to form a plug for use as a test sample; (d) the test sample is inserted in an FTIR spectrometer in which the reflected light provides an absorbent spectrum for evaluation; (e) the spectrum is analysed , the signal/noise ratio is determined in those parts of the spectrum at which peaks are anticipated; (f) the peak separation provides a determination of the basic curve and the selection of the basic curve process; (g) a quantitative determination of the peak is undertaken in accordance with the spectral quality and nature of the mixture; and (h) the nature and respective portions of the ingredients is declared.
Hrsg.: Prof. Dr. rer. nat. habil. Reiner Salzer et al, TU Dresden, DE19726023, 1998

Quantitative X-ray diffraction phase analysis of cements containing several main constituents
The application of X-ray diffraction analysis to determine gypsum, anhydrite, hemihydrate, limestone and blastfurnace slag. [4 pages, 154 kB, PDF]
Hrsg.: H. Vaupel, ZKG International, 9/2001

FGD gypsum - quality criteria and analysis methods
Including comments on the production of gypsum-based products and indications for the use of FGD gypsum in special areas of application. [4 pages, 288 kB, PDF]
Hrsg.: Eurogypsum

Determination of the chloride content of concrete (German)
Summary on a Round Robin test with several methods of analysis: Titration, photometry, ion sensitive electrode, ion chromatography, X-ray fluorescence. [3 pages, 87 kB, PDF]
Hrsg.: Technische Forschung und Beratung für Zement und Beton, TFB

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