dik
Structural
- Apr 13, 2001
- 26,070
One of my current projects is the remediation of a transformer vault to increase the fire resistance rating to 3 hours.
The roof of the vault is constructed of hollowcore slab; thickness not yet determined, but likely 8". Also cover to strand not determined, could be 1" or less. In any event the slab does not have a 3 hour rating.
Is anyone aware of a bonded surface or intumescent coating that can be used to increase the FRR? I'll be in contact with coating suppliers to find out what's available. At this point I have no idea of the load capacity of the HC slab.
Any suggestions about remediation?
Dik
The roof of the vault is constructed of hollowcore slab; thickness not yet determined, but likely 8". Also cover to strand not determined, could be 1" or less. In any event the slab does not have a 3 hour rating.
Is anyone aware of a bonded surface or intumescent coating that can be used to increase the FRR? I'll be in contact with coating suppliers to find out what's available. At this point I have no idea of the load capacity of the HC slab.
Any suggestions about remediation?
Dik