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Research projects

Knowledge transfer


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


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 21791N 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

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.

Find out more

Current

EMSARZEM - Assessment of the use of waste incineration slag as raw material for application in the cement industry

EMSARZEM analyses the processing and utilisation of waste incineration ashes, which are produced during the thermal recycling of municipal waste.

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Current

Investigation of the robustness of AI-applications for process optimisation in cement manufacturing

AI applications or machine learning applications such as soft sensors or assistance systems for production controllers represent promising solutions for process control and optimisation. However, this requires robust AI applications that do not jeopardise the operational safety of the complex production facilities in the cement industry.

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Current

Raw meal screening: Energy-optimised fine-rod screening of raw cement meal for the evaluation of process-relevant characteristic values

The subject of the research project is the fine-tuning of dry cement raw materials. The focus is on the influence on the electrical energy requirement during the comminution of the raw material and the thermal effects on the subsequent clinker burning process, caused by a changed raw meal granulometry.

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Current

Method for rapid testing of the quality of flyable alternative fuels for use in the clinker burning process

As part of the research project, the German cement industry is to be provided with a utility model of a new type of apparatus for quasi-continuous incoming inspection of SRF deliveries. Based on a fast, technically robust and efficient characterization of flight capability, humidity and optically detectable features of SRF, a system shall be developed, constructed and tested in practice.

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Concrete technology


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

Influence of releasable alkalis from aggregates on a deleterious alkali-silica reaction in concrete

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

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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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Current

Environmentally friendly railway sleepers with calcium sulfoaluminate cements

The research project will investigate whether the technical requirements for railway sleepers with CSA cements can be realised. Also, some basic links to standards (e.g. modulus of elasticity, creep and shrinkage in accordance with EC2) must be checked and ensured.

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Current

Durability of concretes with clinker efficient cements under modified concrete technological conditions

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.

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Current

Proof for durability of chemically stressed concretes and concrete components: Proof of concrete attacked by carbonic acid

In order to be able to use new, clinker-efficient cements and concretes in the future even under the attack of carbonic acid, the development of a test and assessment concept is necessary. Therefore, VDZ and the Institute for Building Research of the RWTH Aachen started a joint research project.

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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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