Cement Concrete Innovation Project Research Development Contract

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Concrete technology
Durability of concretes with clinker-efficient cements under changed concrete technological boundary conditions
Proof of durability of chemically stressed concretes and concrete components: Proofs on concrete in the event of attack by carbon dioxide
Differentiation of E III-S aggregates and derivation of concrete technical measures
Testing of the frost-thawing salt resistance of concrete for exposure class XF2
Testing and evaluation of the effective alkali content of cements
Environmentally friendly railway sleepers with calcium sulfoaluminate cements

Knowledge transfer in construction
Chemistry & Mineralogy
Effects of pre-hydration on the performance of cements, taking various clinker properties into account
Performance of ternary cements with portland cement clinker, blast furnace slag and calcined clay as the main component
Optimization of the X-ray analysis of dusts from clinker production as a basis for their utilization and for process control
Cement chemical optimization of cements containing fly ash

Cement manufacture
Accelerating CO2 capture with oxyfuel technology in cement production
CO2 separation by means of an integrated calcium looping process
Emission reduction in the stone and earth industry through model-based process optimization (EMREDPRO)
Advanced Indirectly Heated Carbonate Looping Process (ANICA)
Optimization of the sorbent-assisted dust discharge to further reduce the Hg loads from Zemen rotary kilns
Organic reduction in catalysts

Investigation of the interaction between fuel particles and cement clinker with the aim of increasing the use of substitute fuels
Investigation of the influence of alternative fuels on the formation of deposits in rotary kilns in the cement industry
Improvement of the energy efficiency in the grinding of composite cements by means of separate fine grinding on a semi-industrial scale
Procedure for the rapid testing of the quality of airworthy substitute fuels for use in the clinker burning process
Cement clinker production with simultaneous power generation

Asphalt Meta Research Programs

“Incoming inspection of reclaimed asphalt by means of FTIR spectroscopy for optimised reuse in the asphalt mixing plant”.
Research objective and working hypothesis
The aim of the proposed research project is to develop and test a method for the
characterisation of road paving materials, which allows the identification of problematic
This will enable the identification of problematic constituents and modifications originally used in asphalts. If the analytical method investigated is suitable, the
At the end of the project, a test method will be available that can be used in the asphalt mixing laboratory, which will enable the FTIR measurement and the quantitative evaluation of the measurement in a user-friendly way.
The proposed solution for the development and testing of a method for the for the FTIR analysis of reclaimed asphalt to improve the reuse in asphalt mixtures comprises a total of nine work packages:
1. construction of an asphalt-specific spectral library for the identification of problematic constituents (e.g. PAHs) as well as common modifiers and additives. 2,
2. optimisation of the procedure for obtaining representative asphalt mortar samples from reclaimed asphalts for FTIR analysis,
3. laboratory conception of the FTIR analysis methodology on samples with known and defined
and defined composition,
4. validation of the FTIR analysis on representative asphalts with known composition with parallel analysis using conventional
5. practical testing of the FTIR analysis in an asphalt mixing plant.

finished by 28.2.2021  “Durability of the layer composite when using viscosity-changing organic additives in the asphalt”

finished by 31.1.2021 “Determination and parameterization of the cavity distribution in asphalt specimens using asphalt petrological methods”

Working hypothesis
The aim of the planned project is to design a preparation and analysis procedure for the differentiated
description of the void distribution of asphalts, which will mature to practical suitability in the medium
and less time-consuming implementation, this method will mature to practical suitability in the medium term.
Compared to conventional methods for determining the void content, a higher informative value with regard to the void distribution can be achieved. The knowledge gained can then contribute to the understanding of the interactions of asphalt constituents, as well as to the optimisation of mixtures and paving processes.
For example, the effects of small deviations in the grading curve or the binder content, but also those of the temperature on the cavity structure. It is possible that small parameters can lead to a significantly better structure and thus a longer durability of the asphalt pavement.


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