Slab-on-ground for Freezer Warehouse

[Karlos80]

All,

I am designing a 200mm ground slab for a large freezer warehouse operating at -30deg. I would like to eliminate the control joints by increasing reinforcement to 0.5% of a cross section. This normally works well for a standard dry warehouse but not sure if this is the best approach for the freezer as there will be much more contraction?

Comments are greatly appreciated.

Thank you
Regards
Karol

 

[hokie66]

It depends on how much restraint there is to the concrete shrinkage. The slab will shorten, and if this is restrained, cracking will occur.

 

[dik]

You also have to ensure that the material beneath the slab doesn't freeze...

Dik