Material research

Textile-reinforced concrete produced with renewable raw materials

Adding steel to the concrete matrix is a long-established method that is at the same time necessary because concrete exhibits a high level of compressive strength but only limited tensile strength, which is why it always requires a supplementary material absorbing excessive tensile forces. The embedded steel needs to be covered with additional material in order to protect it from corrosive fluids. Hybrid structures built with textile-reinforced concrete address this issue and can open up new fields of application. One of these approaches practiced for the last couple of years is to substitute...

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Issue 02/2017 New possible applications

High flexural tensile strength concrete

Nowadays, fiber-reinforced concrete is often used to increase the flexural tensile strength of the material. This approach enables a reduction in the ratio of conventional reinforcement or its...

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Issue 08/2022

Tensile behavior of concrete components reinforced with natural-fiber textiles

In a research project funded by the Deutsche Bundes-stiftung Umwelt (DBU; German Federal Environmental Foundation), the structural behavior of concrete components reinforced with textiles made of flax...

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Issue 10/2020

Compressive strength classes and performance classes of ultra-high-performance concrete (2)

3 Classification of UHPFRC in tension 3.1 Parameters and test method The axial post-cracking tensile strength (notation: fcft) is the most important material parameter of ultra-high-performance...

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Issue 12/2025

Novel types of concrete and their potential applications

1 Fiber-reinforced concrete Fiber-reinforced concrete is a relatively new type of concrete compared to the “conventional” synthetic building material. Fibers are added to the concrete during...

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Issue 09/2020

Compressive strength classes and performance classes of ultra-high-performance concrete (Part 1)

1 Introduction The spectrum of normal weight concretes covered by DIN EN 206 [1] and DIN EN 1992-1-1 [2, 3] ends at compressive strength class C100/115 in Germany at present. The characteristics...

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