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Ziel des Forschungsvorhabens war es, den Einfluss von Nebenoxiden aus Brennstoffaschen auf die Bildungstemperaturen der Klinkerschmelze und auf die damit verbundene Klinkermineralogie herauszuarbeiten. Ebenso sollten die Auswirkungen der verringerten Prozesstemperatur und der veränderten Eigenschaften der Klinkerschmelze auf die notwendige Bildung von Coatingschichten sowie die Feuerfestkorrosion und damit auf die Haltbarkeit der feuerfesten Zustellung in der Sinterzone des Drehrohrofens aufgeklärt werden.

Ziel des IGF-Vorhabens 19276 N war es, grundlegende Erkenntnisse zur bedarfsgerechten Verdichtung von leicht zu verarbeitenden Betonen in Abhängigkeit der Frischbetoneigenschaften zu gewinnen. Die Untersuchungen sollten dabei den gesamten möglichen Bereich der Frischbetoneigenschaften von LVB abdecken.

The current research project aims to determine if CEM II/C-cements can be used in some exposure classes (XC1-4, XF1) according to DIN 1045 2 under modified technological conditions of the concrete (reduced water-cement ratio, increased minimum strength class) without additional requirements.

The acceptance of resource-efficient cements with significantly reduced specific CO₂ emissions is still too low in construction practice. The main reason for this is that early strength is not high enough for economical production processes and also competitive construction with concrete. Accelerating admixtures can improve the early strength of concrete. The research project investigates interactions between concrete admixtures that accelerate the strength development and cements with several main constituents.

The IGF project 21386 N focuses on the relationship between the releasable alkali contents from aggregates and possible effects in concrete.

For good lifetimes of the refractory materials in the clinker production line, a faultless installation is an important prerequisite. Even though the installation is carried out in most companies by external companies, supervision should be done by trained employees. This seminar should help the participants to be able to better evaluate the refractory installation and thereby recognise deficits at an early stage.

The refractory lining of a cement plant is subject to wear, which can be typical to abnormal depending on the process conditions. A premature wear of the refractory lining usually results in an unexpected loss of production, which is associated with high costs. In order to be able to better assess the reasons for the wear that has occurred, the course gives an overview of the types of wear in the cement plant and their interpretation. In addition, details are shown how the wear behaviour of the refractory lining in the cement plant changes as a result of the use of alternative fuels.

Our Plant Maintenance and Refractories Course covers all topics concerning the high efficiency and availability of a cement plant’s key machinery. Measurement of rotary kilns and ball mills as well as independent expertise in mechanical maintenance and inspections are also among the major aspects. We also provide an extensive know-how transfer on high quality refractory kiln brick lining materials and installation including their relation to mechanical failure.

Climate protection and digitisation are key challenges for the cement industry: More than 600 representatives from the international cement industry and associated suppliers, as well as from scientific and research institutes around the world, gathered at the International VDZ Congress 2018 in Duesseldorf at the end of September. Steeped in tradition, the VDZ Congress is one of the world's most important events in the industry. The 40 talks held at this year's congress focused on particularly pressing topics such as climate protection and digitisation. The participants also discussed current technical challenges and the general situation with regard to cement production. A further highlight was an evening ceremony at which the winners of the VDZ Industrial Safety Prize 2017 received their awards.