Trace Elements in Clinker –

The trace element content of clinkers (and possibly of cements) can be used for the qualitative identification (i.e. manufacturing factory). Several hundred clinker sorts have been analysed (by replicated quarterly samples, collected from all Hungarian cement factories as well as from factories of 8 foreign countries) to determine their Mg, Sr, Ba, Mn, Ti, Zr, Zn and V content. The first 6 elements come from the main raw materials and are of dactylogrammatic value, while the last two elements mainly come from the fuel (used tires, and heavy fuel oil, resp.) and cannot be used for identification. In this paper a graphical method is presented to facilitate the visualisation of the trace element content.