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Research projects

Knowledge transfer


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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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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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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Cement production


Current

Development of a method to improve clinker cooling and to increase energy efficiency in cement rotary kilns by using infrared cameras

In the research project, infrared cameras are used to record the surface temperature of the clinker bed in the clinker cooler. Together with calculated enthalpy flows, this allows control room personnel to identify the operating condition of the cooler. This is used in operational tests to optimise the heat transfer in the clinker cooler by controlling the drive system and adjusting the cooling air distribution.

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Current

Optimisation of clinker-efficient cements by means of multimodal particle size distributions using energy-efficient products from separate ultra-fine grinding

Separate ultra-fine grinding of cement - Energy-efficient grinding meets optimised cement and concrete properties. Today, future-oriented cements can already be produced more sustainably and efficiently by using various components of different finenesses.

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Current

FlashPhos: The complete thermochemical recycling of sewage sludge

Elemental white phosphorus (P4) is indispensable for key industries such as in the food and pharmaceutical sectors and is therefore a strategic raw material of high relevance. In the FlashPhos project, the sustainable production of white phosphorus using sewage sludge will be demonstrated on a large scale.

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Current

ACCSESS – Providing access to cost-efficient, replicable, safe and flexible CCUS

ACCSESS takes a cross-sectorial approach to CO₂ Capture, Transportation, Utilisation and Storage (CCUS), working with Pulp and Paper, Cement, Waste to Energy, and Biorefining, all industries with big potential for carbon dioxide removal.

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Current

Optimisation of energy demand and product quality during grinding in the cement industry through the use of ceramic grinding media

The aim of the IGF project 21791 N is to better understand the influence of ceramic grinding media (balls) on the comminution process and the product quality during cement grinding in ball mills. The data will serve as a basis for designing and predicting the energy requirements and behaviour of grinding plants when using ceramic grinding media.

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Current

Use of hydrogen in the calciner of rotary kiln plants to reduce CO₂ emissions in the cement industry

The main objective of the research project is to investigate both technically and economically the application of hydrogen in the calciner in the cement production process for the first time.

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Concrete technology


Completed

Damage mechanisms of concrete exposed to freeze-thaw attack: Impact of cement main constituents on the internal damage

In this research project the additional amount of freezable water in concretes consisting of cement with several main constituents and the influence on the critical saturation of the concrete were examined.

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Completed

AquaCem: Reuse of fresh concrete recycled water in the fabrication process of - in particular - air-entrained and high performance concretes

The research project aims to investigate whether the limitation on use of recycled water in ready-mixed concrete works for air-entrained and high strength concrete that is in place in all three involved countries is justified, or whether it could be abolished.

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Completed

Influence of concrete technology parameters on the moisture storage and moisture transfer in concretes and cement screeds and on the resulting moisture content under different ambient conditions

The present research project intended to systematically examine the effects of the cement type on the drying behaviour of cement-bound screeds. The particular aim was to establish whether the use of CEM II and CEM III cements really affects the drying behaviour of cement screeds.

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Completed

Granulometry of cement main constituents – Influence on the durability of concrete made with cements containing limestone

The aim was to determine systematically the granulometric influences of the main constituents Portland cement clinker (K), limestone (LL), blastfurnace slag (S) and fly ash (V) as well as the substance-specific impacts of the particle size distributions on cement, mortar and concrete properties.

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Completed

Durability properties of concrete with blastfurnace slag and fly ash cement

The aim was to facilitate an efficient use of the new cements in high-performance and durable concretes, while taking into consideration the availabilities and origins of the cement constituents.

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Completed

Transferability of results from laboratory test procedures to determine the frost de-icer resistance of pre-fabricated paving products in practical conditions

This aim of this research project was to create a secured assessment background for testing the frost de-icer resistance of earth-moist produced concrete paving stones. The proposals could possibly be developed for testing in realistic conditions.

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Chemistry and mineralogy


Completed

Analysis concept for the determination of trace elements in the eluate of cement-bound building materials (IGF No. 16989 N)

The aim of the AiF research project was to identify the causes of the sometimes greater scatter rates in the analysis results in the case of comparison trials for the long-term tank test.

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Completed

Interactions between siliceous fly ash or calcined clay as cement main constituent and superplasticizers based on polycarboxylate ether as well as their influences on rheological properties of fresh cement paste and fresh concrete

It was determined how the rheological properties and the consistency of fresh concrete can be improved by the adjustment of the type and proportion of fly ash or calcined clay in the cement to the clinker as well as the type and dosage of the superplasticizer.

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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

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

Development of an analysis concept for the quantification of cement, its main constituents as well as additives in hardened concrete

As part of the project, methods were developed that allow the cement content, cement type and additive content in hardened concrete to be reliably determined.

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Completed

Interactions between cements with several main constituents and methyl cellulose and their performance in dry mortar

Interactions between different structured or modified methyl hydroxyethyl celluloses and cements blended with limestone, blastfurnace slag or fly ash were determined.

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  • Knowledge transfer
  • Cement production
  • Cement industry
  • Concrete technology
  • Chemistry and mineralogy
  • Quality assurance
  • Environmental protection

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  • English

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