Update on research 

Carbon-reinforced concrete - Ecological. Easy to use.

Carbon-reinforced concrete is a composite in which high-performance concrete is combined with carbon fibers. This material enables innovative, environmentally friendly and easy-to-apply construction methods that provide a wide variety of design options. New buildings and structures have been constructed with carbon-reinforced concrete for many years. Likewise, it has become common practice to upgrade existing structures by adding a carbon-reinforced concrete layer.

Nowadays, slender elements that are only one centimeter thick in some cases make it possible to reduce the concrete volume required for structural purposes by over 50%, which results not only in a lower own weight of structural components but also leads to resource savings and significantly reduced CO2 emissions. In the meantime, methods have been developed for producing carbon fibers from renewable raw materials such as lignin, a by-product of the paper industry. Furthermore, laboratory tests have shown that carbon can also be isolated from airborne CO2.

In the field of recycling, the concrete-carbon bond was successfully broken so that the materials could be separated achieving a purity of about 97 % and fed into the concrete and carbon recycling processes. Carbon residues are already being converted to short fibers and geotextiles on an industrial scale, whereas derivation of long fibers is currently being investigated in comprehensive research projects and will be put into practice in the coming years.

Ease of application is yet another increasingly important aspect besides low environmental impact and recyclability. The number of approvals and suppliers is growing continuously, with an increasingly wide range of available reinforcement options and embedded parts such as anchors and spacers. Health and safety studies found that the amount of airborne fine particulate matter generated during processing and finishing of carbon-reinforced concrete did not exceed the level documented for steel-reinforced concrete.

This paper will present recent advances in the field of carbon-reinforced concrete.

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Reinforcement structures with high temperature stability

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Issue 09/2018 TUDALIT/C3

Carbon and textile-reinforced concrete days: Sharing expertise and results with industry peers

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Carbon-fiber reinforcement combined with the orientation effect of 3D pressure

Attempts have long been made to replace conventional steel reinforcement with suitable alternative materials. In this context, cost-effectiveness has been given special priority. At Augsburg...

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Issue 01/2017 TU Dresden

“Deutscher Zukunftspreis” 2016 for carbon concrete

Prof. Dr.-Ing. Manfred Curbach, Prof. Dr.-Ing. habil. Dipl.-Wirt. Ing. Chokri Cherif and Prof. Dr.-Ing. habil. Peter Offermann are the laureates of the Deutscher Zukunftspreis (German Future Prize)...

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Issue 02/2018 Wood-textile concrete composite systems

Large-dimensioned and precast façade elements

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