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Research projects

Knowledge transfer


Current

Reduction of green house gases by process innovations in the primary Industry, SP 6: Development of a methodology for cross-project and ecological potential assessment, cement industry

The transfer and networking project ReInvent aims to provide technical and organisational support for the BMBF funding measure KlimPro-Industrie.

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Current

Increasing energy efficiency in the cement industry through training by means of virtual reality (VR)

The aim of IGF project 21619 is to develop a training simulator with which learners can independently solve typical process engineering tasks within a virtual reality (VR) environment, particularly in connection with ball mills.

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Completed

BetonQuali - information and qualification platform

"BetonQuali - information and qualification platform", a joint project of VDZ gGmbH and its project partners, aimed to develop and test a training method for semi-skilled and unskilled employees in the concrete industry.

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Cement production


Completed

Reducing mercury loads in rotary cement kilns using sorbents

The research project was investigating the extent to which the different types of mercury bond, the alkaline atmosphere and high dust loading influence the effectiveness of possible additives such as activated charcoal, open-hearth coke or other calcium compounds and mixtures of these.

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Completed

Stabilisation of processes with high secondary fuel use through the injection of oxygen in rotary kiln plants in the cement industry

The main aim of the research project was to evaluate the influence of oxygen enrichment on the clinker, on kiln operation and on the use of alternative fuels as well as on the composition of the exhaust gas.

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Completed

Joint Project SynErgie: Synchronised and energy-adaptive production technology for adapting industrial processes to a fluctuating power supply

In the course of the research project, a cross-industry approach to the determination of flexibility potential was developed and adapted to the needs of the basic materials industry.

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Completed

CEMCAP – CO₂ capture from cement production

Taking into account the experimental results and a techno-economic analysis, CEMCAP has developed a decision basis for CO₂ capture technologies in the cement industry. This should enable European cement producers to perform plant-specific CCS economic analyses and adapt to a world with limited carbon emissions. From a European perspective, CEMCAP aims to expand the portfolio of cost- and resource-efficient options for CCS and thus the possibilities for reducing greenhouse gas emissions.

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Completed

Development of a high-efficiency SNCR process with staged combustion for reducing NOₓ and NH₃ emissions in cement industry rotary kiln plants with precalcination

The aim of the research project was to obtain general NOₓ emission abatement to 200 mg/m³ with a minimal NH₃ slip of max. 30 mg/m³ in cement industry rotary kiln plants with precalcination.

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Completed

Improving the selection and service life of metallic materials in the high-temperature range of rotary cement kilns, taking into account the relevant gas atmosphere

The aim of this research project was to investigate the issue of high-temperature corrosion in the hot area of the preheater and the rotary kiln.

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Concrete technology


Current

Durability of concretes with clinker-efficient cements CEM II/C and CEM VI

EN 197-5 defined the clinker-efficient cements CEM II/C and CEM VI. Technical approvals for the application of CEM II/C cements have been issued. For a wide application, all parties involved have to develop confidence in the new products. With new findings on fresh concrete properties, hardening behaviour and durability two research projects of the VDZ Concrete Technology Department will provide an important basis for the application of these cements in the construction industry.

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Current

Fresh concrete properties and hardening behaviour of concretes with clinker-efficient cements CEM II/C and CEM VI

EN 197-5 defined the clinker-efficient cements CEM II/C and CEM VI. Technical approvals for the application of CEM II/C cements have been issued. For a widespread application, it is important that all parties involved develop confidence in the new products. With new findings on fresh concrete properties, hardening behaviour and durability two research projects of the VDZ Concrete Technology Department will provide an important basis for application of these cements in concrete for the construction industry.

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Current

Durability of concrete according to the performance principle - classification of material resistance, production control (PC), conformity criteria and control (CC)

In this project, the systematic classification of the carbonation and chloride penetration resistance of concretes will be investigated. Based on these results, recommendations for action will be derived for production and conformity control within the framework of a performance-based durability concept.

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Current

Reduction of green house gases by process innovations in the primary Industry, SP 6: Development of a methodology for cross-project and ecological potential assessment, cement industry

The transfer and networking project ReInvent aims to provide technical and organisational support for the BMBF funding measure KlimPro-Industrie.

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Current

Recycled clay brick containing materials as a raw material in resource efficient cements and durable concretes

The topic of the research project is the utilisation of brick-containing materials from the recycling of mineral construction waste. It is being investigated whether and how resource-efficient cements can be produced with processed brick-containing construction waste and reduced clinker content, thus reducing process-related CO₂ emissions.

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Current

LeptoCalc

The use of fines from concrete recycling plants as cement constituents is currently insufficiently investigated and requires further research. The basic prerequisite for the utilisation of the fines will be to be able to characterise the material properties as quickly and comprehensively as possible and to ensure a constant material flow. An essential part of the research project is therefore the development of a rapid test method with which the properties of these fines can be estimated, among other things, by measuring the residual reactivity.

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Chemistry and mineralogy


Completed

Investigations on the internal particle size distribution of main constituents of Portland composite and composite cements

A laboratory method and a method on the internal particle size distribution that can be used on-site in a cement plant were developed in this research project.

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Completed

High-performance clinker for blastfurnace cements

Aim of the project was to improve the early strength performance of blastfurnace cements by a systematic adjustment of the clinker phase composition and/or addition of mineralisers in the clinker production process.

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Completed

Optimisation of the X-ray analysis of dusts from clinker production as a basis for their utilisation and process control

The aim of the research project was to define the procedure for robust and precise dust analyses in factory laboratories in order to enable optimal utilisation of production dusts and to support process control.

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Completed

Interactions between superplasticizers and cements with calcined clay in dependence of the temperature

The aim of the research project was to determine interactions between superplasticizers and cements with calcined clay.

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Completed

Suitability of various inorganic substances for use as a minor constituents in cements according to EN 197-1

The main scope of this research project was to supply evidence that selected inorganic substances are suitable for the use as minor constituents.

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Completed

Investigations on the suitability of dolomitic carbonate rocks as cement main constituent

The aim of the research project was to investigate the suitability or usefulness of dolomitic carbonate rocks as a main cement constituent and to define requirements for dolomitic carbonate rocks as required for the production of high-performance dolomitic cements and concretes of high durability.

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