Tecbor® Boards - Constructive Solutions
Tecbor® Boards - Tunnel Protection
In the last years, due to fire events occurred in tunnels, efficient solutions have been sought to safeguard their structural integrity.
The purpose of mercor tecresa® is to guarantee people’s safety by ensuring tunnel stability and integrity, ultimately increasing the time needed for evacuation.
Currently the EU has established within its territory the European Directive 2004/54/EC; including Spain by Royal Decree 635/2006 for tunnels, although they technically lack of established regulations. Technicians must base on the
procedures acquired in other countries, such as the NFP 502, the Dutch RWS or German ZTV among others. This last one internationally recognized.
mcr tecresa® offers solutions for tunnel protection based on the Dutch RWS, in which heating curve is described a higher temperature peak. This makes our solutions to cover the most unfavorable conditions during a fire.
Furthermore mercor tecresa®, has conducted tests in a real tunnel, adding fire power (combustible diesel) with an approximate power output of 15 Mw. These tests were conducted on the Siero tunnel (TST).
Reinforced Concrete Protection (direct fixation)
Suspended false ceiling & Direct Fixation
| TEST
Laboratory : Tunnel Safety Testing S.A. (TST) |
SOLUTION
1. Tecbor® 20 mm boards.
|
Description of Assembly
The ceiling is protected using two 20 mm Tecbor® Boards. Firstly, fix the 15 x 45 x 0.5 mm metal omega profiles spaced 610 mm apart, directly to the concrete slab using a 8 x 46 mm metal anchor. Place the first layer of 20 mm Tecbor® and attach it using 3.5 x 45 mm self-tapping screws. The second layer of 20 mm Tecbor® is attached using 4.2 x 55 mm selftapping screws
The walls are protected by means of two 20 mm Tecbor® Boards, anchored directly to the concrete. To attach the first layer, use 8 x 46 mm M6 metal anchors.
For the second layer, use 8 x 76 mm M6 metal anchors. Apply Tecbor® Joint Paste to the board joints and screw heads. For more information, contact our technical department
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Product document
Description of Assembly
Fix Tecbor® B 20 mm board directly to concrete slab using a 10 x 60 mm metal plug.
Apply Tecbor®joint paste to joints between boards, both in the ceiling and the walls.


Product document
| TEST
Standard :RWS fire curve |
SOLUTION
1. Tecbor® 20 mm boards.
|
Description of Assembly
Assemble the metal structure from which the suspended ceiling will hang, forming grids (check dimensions) with primary profiles of 75 x 46 x 1.2 mm and secondary profiles of 75 x 40 x 1.2 mm.
Once the metal structure has been assembled, attach the two layers of Tecbor® 20 mm Boards to the structure using 5.5 x 73 mm self-drilling screws.
mcr tecresa® offers a range of assembly options. Consult the technical department.

Product document
| TEST
Standard :RWS fire curve |
SOLUTION
1. Tecbor® 20 mm boards.
|
Description of Assembly
Assemble the metal structure from which the suspended ceiling will hang, forming grids (check dimensions) with primary profiles of 75 x 46 x 1.2 mm. The secondary profile is substituted by a 12 x 150 mm Tecbor® Board strip.
Once the metal structure has been assembled, attach the two layers of Tecbor® 20 mm Boards to the structure using 6.3 x 65 mm self-drilling screws.
mcr tecresa® offers a range of assembly options. Consult the technical department.


Product document
| TEST
Standard :RWS fire curve |
SOLUTION
1. Tecbor® 20 mm boards.
|
Description of Assembly
Assemble the metal structure from which the suspended ceiling will hang, forming grids (check dimensions) with TC 60/27 profiles.
Once the metal structure has been assembled, attach the two layers of Tecbor® 20 mm Boards to the structure using 5.5 x 73 mm self-drilling screws.
mcr tecresa® offers a range of assembly options. Consult the technical department

Product document
Description of Assembly
Fix the Tecbor® B 23 mm board directly into the concrete slab with 10 x 60 mm metal plug.
This system does not need any type of joint paste, although sealing with Tecsel® mastic is recommended for holes bigger than 3 mm.
Contact our technical department for further information.
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Product document
Description of Assembly
Fix the Tecbor® 24 mm board directly onto the concrete slab using a Fischer FNA II 6 x 30/30 A4 metal plug.
This system does not require any kind of joint paste, however it is advised to seal gaps greater than 3 mm using Tecsel® Mastic.
For more information, contact our technical department
![]() |
![]() |
Product document
Description of Assembly
Fix the Tecbor® 24 mm Board directly onto the concrete slab using a 10 x 60 mm metal plug.
This system does not require any kind of joint paste, however it is advised to seal gaps greater than 3 mm using Tecsel® Mastic.
For more information, contact our technical department.
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Product document
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