Raised Floor System
Raised Floor System
(OP)
I'm working on a project where the client would like to have a raised floor area (roughly 2 feet tall or less) constructed with a concrete slab on foam. The project is a renovation, so the foam would be placed on an existing 4" concrete slab.
I'm looking for any information (design guides, tips, etc.) regarding the design/detailing of this type of system. Doing some initial research, it looks like EPS Geofoam is appropriate and there are some compressive resistance tables provided for different densities. I've designed slabs-on-grade, but is the design any different for slab-on-foam? Also, how do the blocks typically get anchored together or to the existing/new slab?
Any advice or just getting pointed in the right direction for documentation would be greatly appreciated.
Thanks.
I'm looking for any information (design guides, tips, etc.) regarding the design/detailing of this type of system. Doing some initial research, it looks like EPS Geofoam is appropriate and there are some compressive resistance tables provided for different densities. I've designed slabs-on-grade, but is the design any different for slab-on-foam? Also, how do the blocks typically get anchored together or to the existing/new slab?
Any advice or just getting pointed in the right direction for documentation would be greatly appreciated.
Thanks.






RE: Raised Floor System
Not sure what your design loads are above, and how much settlement is an issue.
RE: Raised Floor System
I haven't used this myself, but I would consider it. I'd use a taped HDPE vapor barrier around everything, to help mitigate against gas spills, acids, oils, etc.
_________________________
TKE
RE: Raised Floor System
As TDI say, design it as a structural slab.
RE: Raised Floor System
RE: Raised Floor System
If there are walls, then make it a structural slab, one way or two way according to the length/width ratio. If there are no walls, then it must be slab on grade.
Michael.
"Science adjusts its views based on what's observed. Faith is the denial of observation so that belief can be preserved." ~ Tim Minchin
RE: Raised Floor System
There will be perimeter walls around the raised area, but I hadn't anticipated putting in intermediate walls. FYI - actual raised height is 17", so I'm thinking 12" foam with a 5" slab with WWF.
RE: Raised Floor System
There will be perimeter walls around the raised area, but I hadn't anticipated putting in intermediate walls. FYI - actual raised height is 17", so I'm thinking 12" foam with a 5" slab with WWF.
RE: Raised Floor System
RE: Raised Floor System