Testing and assessment of effective alkali content in cements
The IGF project 19295 N intended to devise a testing and assessment system that better reflects the cements’ material properties.
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The IGF project 19295 N intended to devise a testing and assessment system that better reflects the cements’ material properties.
The aim of this research project was to create basic knowledge on the results of different processing and compaction measures in correlation with the properties of the fresh concrete.
The research project should generate essential knowledge on the behaviour of different aggregates under accelerated conditions within ASR testing methods. The target was to obtain with different testing methods a consistent assessment of the alkali sensitivity of aggregates and concretes respectively and to clearly identify expansive reactions that are not caused by ASR.
In a CORNET (Collective Research Networking) research project, the project partners CRIC (Belgium), Smart minerals (Austria) and VDZ (Germany) had combined under the consortium leadership of the VDZ to determine characteristic variables for cement and mortar samples and correlate them with the results of concrete durability tests.
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”.
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.
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.
As result a procedural instruction for an advanced intial testing should be formulated and the transferability onto conditions in practice should be assessed.