Grand Paris Express

Steel-Fibre-Reinforced Tunnel Segments Improve Carbon Footprint

Although the use of steel fibres for shotcrete or concrete segments can significantly improve the CO2 footprint, their use is still not widespread in Europe. The example of construction lot 16-1 of the Grand Paris Express (GPE) rapid transit network in France shows how the interaction of innovatively thinking construction partners not only creates cost savings, but also benefits the environment.

Comprehensive climate-relevant optimisations are possible above all in the production of cement, concrete and steel. For example, the production of cement in Germany alone generates about 0.6 t of CO2 per 1 t of cement. The use of high-performance concretes enables significantly lower component thicknesses, which in turn leads to savings in steel reinforcement, concrete quantity and cement content. As early as the design and planning of structures, climate-relevant improvements are possible: this is where the design decisions for more environmentally friendly construction methods are made,...

Related articles:

Issue 03/2018

Steel Fibre Reinforced Concrete for Tunnel Lining Segments

Compared to conventional steel reinforcement, the usage of steel fibre reinforced concrete segments for tunnel linings offers many advantages. The production process of the segments is simpler and the...

Issue 06/2023

Fibre-Reinforced Concrete Segments – From Laboratory to Large-Scale Tests

The project involves carrying out mixing tests with different fibre contents and materials, fresh and hardened concrete tests and large full-scale tests on segments. To ensure that the large-scale...

Issue 01/2011

Steel-fibre-reinforced segmental linings: State-of-the-art and completed projects

Introduction Upon the appearance of steel-fibre-reinforced concrete on the European market in the 1970s, neither standards nor guidelines for the design and dimensioning of this new material were...

Issue 02/2011 Guideline

Steel fibre concrete

Amendments and modifications to DIN 1045 Parts 1/3 and DIN EN 206-1, Guideline of the German Steel Reinforced Con-crete Committee (DAfStb), March 2010 edition, 47 pages, A4, with 23...

Issue 08/2017 Constructional fire protection

Cement-based, glass fibre-reinforced Tunnel Fire Protection Boards

In order to ensure the highest degree of safety in underground transport facilities, integrated technical solutions in combination with constructional fire protection can be of assistance. Solutions...