English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

2007-03-01 05:50:01 · 2 answers · asked by Majed a 1 in Science & Mathematics Engineering

2 answers

* use of ventilation systems for smoke control
* use of electrostatic filter to separate smoke particles
* protection against spalling of concrete
* products to be used as water- and frost protection
* risk under tunnel construction
* fire development in tunnels
* use of water mist to control tunnel fire

2007-03-01 08:40:09 · answer #1 · answered by Mesab123 6 · 0 0

No gas . Butane etc.

2007-03-01 16:05:20 · answer #2 · answered by JOHNNIE B 7 · 0 0

fedest.com, questions and answers