WIR-V1.4 | Separating fibre reinforcement from construction materials using electro-impulse process AMELIE


The WIR-V1.4 joint project uses the electro-impulse process to achieve effective material separation of textile reinforcements from construction materials. For this purpose, the energy and resource efficiency, the economic efficiency test as well as the scaling of the process and its integration into existing plant technologies are being developed. WIR-V1.4 thus makes a vital contribution to reducing the cost of fibre processing, significantly improving its quality and closing a concrete gap in existing recycling and processing technology in the region “Elbtal Sachsen”.

Objective 1 – Complete extraction of CFRP reinforcements from fibre-reinforced concrete: Complete separation will be demonstrated at a pilot plant that initially crushes flat bodies in batch operation and breaks down the composite of CFRP reinforcement and matrix. These tests form the basis for integrating the electro-impulse process in existing plant and separation systems. The electro-impulse process complements existing technologies for the processing of fibre-reinforced concretes and takes up where the existing technologies still have weaknesses. The use of innovative technological approaches will make it possible to close the material cycle of fibre-reinforced construction materials, especially CFRP.

Objective 2 – Demonstrate energy/resource efficiency: For integration into existing plant systems, there is always the question of balancing the resources used for this. Within the context of this WIR-V1.4, the demand for electrical energy for operation of the pilot plant as well as the requirements for the necessary process water are of particular importance. 

Objective 3 – Scaling up the process: In addition to the pure proof of function and the elaboration of the technical advantages for processing, the economic efficiency and scalability of the process are also considered. Technological advantages include selectivity and the good adaptation of the process to different construction materials by adjusting process parameters such as impulse voltage and impulse energy. In this context, the economic efficiency and scalability characterise the implementation of the process under economic aspects in a continuous process for industrially relevant throughput rates.

Partners involved

Bothur GmbH & Co. KG

Maschinenbau Mischke GmbH

Technische Universität Dresden – Professur für Baubetriebswesen

Technische Universität Dresden – Professur für Baumaschinen

WiE GmbH – Werk für industrielle Elektronik


Technische Universität Dresden – Professur für Baumaschinen


2023-08-01 to 2025-07-31