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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

AC²OCem - Accelerating Carbon Capture using Oxyfuel Technology in Cement Production

The project investigates the existing 1st generation oxyfuel technology and an innovative 2nd generation oxyfuel concept with the ultimate goal of reducing CO₂ avoidance cost, increasing plant efficiency and strengthening the overall competitiveness.

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Current

CLEANKER – Integrated calcium looping process for CO₂ capture

The aim of the CLEANKER (CLEAN clinKER) project is to perform large-scale testing of this technology as an integrated method (Technology Readiness Level 7). It is planned to treat 4 000 m³/h exhaust gas in a demonstration plant to be connected to an existing kiln line at the Buzzi Unicem works in Vernasca in Italy.

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Current

Optimisation and evaluation of process chains for chemical CO₂ utilisation for the emission reduction in the cement industry

To meet the ambitious climate protection targets by 2050, so-called CCUS technologies are required. In addition to CO₂ storage, the combination of CO₂ and hydrogen management offers the possibility of producing usable products. The combination of capture methods and methods of CO₂ utilisation results in a variety of possible process chains, the optimum of which depends on site-specific boundary conditions. The project analyses possible pathways in order to develop a supporting tool for strategy development for specific sites.

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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

Cement clinker production with simultaneous power generation

The core concept of the research project is to generate the maximum amount of electrical energy from the process exhaust gas during the production of cement clinker without affecting its kiln capacity or clinker quality. The electricity generated should cover the base load requirements for the cement production.

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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


Completed

Alkali-Silica-Reaction (ASR) of concrete pavements on roads, bus traffic areas and par- king spaces in the municipal sector

This research project in the field of municipal traffic areas was aimed at basic findings for a practice-oriented classification of the moisture class and the respective assessment of concrete by means of a performance-test. For this purpose concrete pavements without showing signs of a damaging ASR after approx. 10 years of use were tested. From this pavements drill cores were taken and assessed with a procedure especially developed for the moisture classes WA.

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Completed

CARBON CONCRETE COMPOSITE – C³-Environment: Characterisation and leaching tests for the determination of the environmental safety of C³

Goal of the research project was to generate a broad, scientific verified data base via corresponding leaching and shower tests (laboratory and outdoor tests) on carbon-concrete test specimen with different concrete covering of the carbon-fibres as well as with different percentages of the carbon-fibres to evaluate the environmental compatibility of the new, innovative composite building material “carbon-concrete”.

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Completed

CARBON CONCRETE COMPOSITE – C³: Acceleration of standardisation and approval procedures in the context of test-based design and performance testing for C³ products (CarbonSpeed)

The aim of the C³ CarbonSpeed project was to create a guideline to complement the existing verification procedures of the building authorities (approval in individual cases, national technical approval) with a view to shortening the time required for the introduction of solutions with carbon concrete.

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Completed

CARBON CONCRETE COMPOSITE – C³: Proofs and testing concepts for standards and technical approvals

In the course of the project, VDZ planned, inter alia, to work together with the ibac, Aachen, to develop a data base for the environmental compatibility of the new composite construction carbon concrete, by leaching and irrigation trials.

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Completed

Advanced initial testing for air-entrained concrete with superplasticiser considering conditions in construction practice

As result a procedural instruction for an advanced intial testing should be formulated and the transferability onto conditions in practice should be assessed.

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Completed

Resource-saving concrete – The next-generation material

One of the aims was to compile ‘Guidelines for the use of crushed sands (fine RC aggregate) in the production of cement ̓ – referred to in the project as ‘R cement ̓.

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Chemistry and mineralogy


Current

Effects of pre-hydration on the performance of cements and the influence of different clinker properties

The research project has two objectives. The first is to investigate whether certain chemical / mineralogical properties can make clinker more robust against pre-hydration effects. Secondly, it will be investigated which measures can be taken to counteract possible negative effects, in particular by adjusting the sulphate carrier composition.

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Current

Performance of ternary cements with Portland cement clinker, granulated blast furnace slag and calcined clay as the main constituents

The aim of the research project is the detailed investigation of the performance, durability and hydration behaviour of ternary cements with blastfurnace slag and calcined clay as main constituents (KSQ cements).

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Current

Interactions of accelerating admixtures and clinker-efficient cements with several main constituents to improve the early compressive strength of concrete

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.

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Current

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 is 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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Current

Influences of two-stage mixing on the hydration behaviour of Portland-composite cements and composite cements as well as on the concrete performance

The acceptance of resource-efficient cements with significantly reduced specific CO₂ emissions is still too low in construction practice. The main reason is that the early strength is not high enough for economical production processes and competitive construction with concrete. The research project is investigating the extent to which more intensive mixing and further cement constituents besides clinker increase the mixing energy input and can increase the early cement hydration and thus the strength development.

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Current

Resource-efficient use of sulphate-containing process dusts for sulphate optimisation using isothermal heat flow calorimetry

The research project analyses whether sulphate-rich process dusts can be used to optimise the sulphate content of cements, thereby saving anhydrite/gypsum and, in particular, improving the early strength of cements with several main constituents. Furthermore, it is to be determined whether isothermal heat flow calorimetry can be used as a fast and cost-effective investigation method for this purpose.

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