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Research projects on the subject 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 – Recovery of fines from concrete recycling plants as cement constituent

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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Current

URBCON

The objective of the URBCON project is to reduce the consumption of primary raw materials and CO₂ emissions resulting from the construction and maintenance of buildings and infrastructure in urban areas. The project focuses on concrete as a building material.

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Current

Testing the freeze-thaw resistance with de-icing agents of concrete for exposure class XF2

The aim of the research project is to develop a practical method for testing the freeze-thaw resistance of XF2 concretes.

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