Performance-based concept for sufficient ASR resistance of concrete
The thesis developed a "Performance-based concept for sufficient ASR resistance of concrete" to more effectively prevent damage to concrete structures due to alkali-silica reaction (ASR). This is based on a new method for testing and evaluating the effective alkali content, especially of clinker-efficient cements with several main constitutens, and on the results of the long-term behaviour of concrete cubes in outdoor exposure site tests.
Stability of calcined clays during storage
Investigations into the fire-induced explosive spalling of ecologically optimised concretes as well as determination of the thermo-mechanical and thermo-physical properties of these concretes
The purpose of the research project is to gain the first systematic scientific findings on spalling behaviour in the event of fire and on thermo-mechanical and thermo-physical properties for concretes with the new clinker-efficient cement types and with recycled aggregates.
Calcined Clays from mineral secondary raw materials
The aim of the research project is to investigate the suitability of previously largely unused mineral secondary raw materials from the stone and earth industry as a resource-conserving and climate-friendly main cement constituent. The use of cal-cined clays from secondary raw materials instead of conventional main cement constituents or high-quality primary clays can make an important contribution to the production of climate-friendly and resource-efficient cements.
EMSARZEM - Assessment of the use of waste incineration slag as raw material for application in the cement industry
Burning Technology in Cement Production
Clinker production is the most energy-intensive process step in cement manufacturing. It can represent up to 90 % of the total energy demand in a cement plant and is therefore a main focus not only with regard to cost optimisation and quality improvement of the final product, but also regarding emission control and the reduction of impacts on the environment. VDZ’s training will enable participants to obtain a deeper knowledge of the clinker production process and a better understanding of the impacts that daily decisions of plant personnel can make on the plant’s performance (quality, electrical energy use, fuel consumption and emissions).
Grinding Technology in Cement Production
Raw material preparation and cement grinding are the first and the last major process steps during cement production. The energy demand of these two processes amounts to up to 70 % of the electrical energy used in a cement plant. This training will enable participants to obtain a better understanding of the comminution processes as well as the equipment used for material grinding to ensure high levels of availability. This altogether will allow an optimisation of production rates and reducing energy consumption.
Crash Course Process Control
The SIMULEX® cement plant simulator for training plant supervisors, foremen, production personnel, control room operators and young engineers was developed by KHD Humboldt Wedag AG in cooperation with VDZ. For over ten years VDZ has been using the simulator within the framework of training courses and has been continually supporting the further development of the system with practical input from the industry. As a result, the simulator provides a realistic reconstruction of a cement plant with a state-of-the-art supervisory control and data acquisition system (SCADA).
VDZ Congress 2024
The 9th International VDZ Congress will take place in Düsseldorf on 6 – 8 November 2024. The VDZ Congress is the international scientific forum for the cement industry and its suppliers. Delegates from all over the world will come together to discuss the latest developments and challenges in the context of transformation of the cement industry on its way towards climate neutrality.