Qualitative Identification of Clinker and Cement

Some Hungarian and Austrian clinker and cement samples have been analysed for their content of strontium, barium, manganese, magnesium, titanium and zirconium, and analytical data processed by statistical ¿pattern recognition" methods: dendrograms were constructed and the significance value of the above elements computed. The recognition is quite good in the case of ordinary Portland cement clinkers, worse in the case of sulphate resistant clinkers. Unfortunately, it turned out that the use of mineral admixtures from other sources causes such a great uncertainty that the identification is not possible.