Mining and extraction of raw materials is not only the focus of this issue of the ZKG magazine – it also is the beginning of almost all industrial value chains. Since man found out what to do with all...
Fundamental investigations were carried out to optimise the production process for calcium silicate units with the aim of saving costs and energy. The statistical design of experiments (DoE) approach...
The solidification of borate solutions with alkali-activated slag cements (AASC) was studied. The results showed that AASC activated with 7.5% NaOH had acceptable setting times, and that the...
The influence of sodium sulfate (SS) addition on hydration and microstructure development of the cement high volume fly ash (CHVFA) system under steam curing is investigated in this paper. The...
Köhler Kalk in Northern Hesse commissioned a new kiln. Thanks to the rotary lobe compressors made by Aerzen, the plant manufactured by QualiCal counts among the most efficient solutions in its field.
At its lime plant in Meißner, Köhler Kalk GmbH relies on high-tech equipment and methodologies for processing the raw material. To maintain their high quality standards daily inspection-, maintenance-...
In this study, 420 concrete laboratory samples were prepared according to 20 mixing designs with various water-to-cement ratios and different fiber contents. Three volumes of concrete with 3 % nano...
The use of statistical factor analysis for evaluating X-ray diffraction data is illustrated using two examples. These show that it is possible to calibrate complete diffractograms instead of...
