Short-fiber-reinforced concrete meeting the demands of wrapping textile-reinforced concrete

Authors: Fabian Kufner, Prof. Dr.-Ing. Petra Rucker-Gramm, Prof. Dr.-Ing. Michael Horstmann, Erika Hämmelmann-Breul, Frank Breul, Eric Hahn, Stefan Hettwer, Dr.-Ing. Ulrich Pachow

In the research project WiFaPu (Wrapping process for highly fiber-reinforced concrete using the example of a pump sump), a new production process for short-fiber-reinforced textile concrete components was developed. Thin concrete layers are wrapped around an inner formwork, creating components with variable cross-sectional thicknesses. The developed concrete mixture ensures pumpability, adhesion, and durability. It incorporates AR-glass fibers, metakaolin as a cement substitute, and expanded glass aggregates to lower CO₂ emissions and conserve resources. Improved tensile strength and freeze-thaw resistance demonstrate the potential of optimized concrete mixtures of short-fiber-reinforced textile concrete for the wrapping process.

More information
https://doi.org/10.1016/j.jobe.2024.111189