Grand Paris Line 15 South

Paris, France

Time savings of 22 hours per cycle thanks to real-time data.

The biggest urban project currently under way in Europe is part of the Grand Paris Express project. A consortium, led by Bouygues Travaux Publics, is currently working on batch T2A of Line 15 South. For this challenging project with complex geological formations and construction of structures under very heavy water loads and operational train lines, our customers decided to speed up the cycles by using #Concremote to monitor early age compressive strength. By using Concremote cable sensors, the users were able to strip formwork in 26 hours instead of 48 hours and thus save a lot of time.


  • Speed up the cycles as much as possible in the execution of the galleries
  • Particular working environment dozens of meters underground and without GSM network

Customer requirements

  • Required early strength for stripping 8 N/mm² and movement of the tunnel formwork carriage when reaching the target value

Concremote solution

  • 2x Concremote cable sensor 2.0, 2x measuring cable with 3 measuring points = 6 measuring points per casting step
  • Bluetooth feature inside the tunnel for the data transfer to the smartphone

Concremote | Save time

Time savings

Time savings of 22 hours per cycle thanks to real-time data.

Concremote | More Safety

More Safety

Hard data for compliance conforming quality and strength thresholds.

Project data

Year of completion
Period of Concremote use
02|2022 - 05|2022
Zip/Postal Code
Horizon consortium (Bouygues Travaux Publics and Soletanche Bachy)

Building data

Type of construction
Tunnel construction

Concremote data

Used Concremote hardware:
2 x Cable Sensor 2.0 and 30 lost cables
Concrete mixes in use:
Number of measurements:

Services used

Stefan Scheuchelbauer

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