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UTILIZATION OF Fe-Ni SLAG FOR PASSIVE FIRE PROTECTION OF TUNNELS

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Presentation on theme: "UTILIZATION OF Fe-Ni SLAG FOR PASSIVE FIRE PROTECTION OF TUNNELS"— Presentation transcript:

1 UTILIZATION OF Fe-Ni SLAG FOR PASSIVE FIRE PROTECTION OF TUNNELS
K. M. SAKKAS, A. SOFIANOS, P. NOMIKOS, D. PANIAS

2 Problem to be solved Passive fire protection of tunnels and generally of underground constructions Concrete Fire Resistant Material Structural steel bars

3 Target of the work Development of an inorganic polymeric material that can resist the most severe fire scenario Standard Fire load curves

4 The raw material used Chemical analysis of the FeNi-slag.
Species % w/w SiO Al2O FeO Cr2O MgO CaO

5 The recipe for the K-Geopolymer
Material % w/w Slag Al2O KOH H2O

6 The Standard Fire Test

7 More Information for this material
K. Sakkas, D. Panias, P. Nomikos, A. Sofianos, “Potassium based geopolymer for passive fire protection of concrete tunnels linings”, Tunnelling and Underground Space Technology, 43, 2014, pp


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