LeptoCalc – Recovery of fines from concrete recycling plants as cement constituent
The LeptoCalc project investigated the use of fine recycled aggregates as cement constituents.
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The LeptoCalc project investigated the use of fine recycled aggregates as cement constituents.
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.
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.
The aim of the research project is to develop a practical method for testing the freeze-thaw resistance of XF2 concretes.
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.
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.
The overriding aim is to actively promote innovative developments on future-oriented markets in Germany. The building industry is one of these.
The IGF project 21386 N focuses on the relationship between the releasable alkali contents from aggregates and possible effects in concrete.