Machiavelli999
Member
I am being asked a question that I have never faced before. We are installing conduit in mat slab to be routed underground in a building. The conduit is going from a main switchboard to a distribution panel and other mechanical equipment control panels. Again all the conduit is to be run in concrete slab.
The geotech report has said that we need to account for up to 1" differential settlement within this new building. Due to this, the cast iron piping for water that is also being routed in the slab is going to be wrapped in a compressible wrapping that will protect it from cracking due to this differential settlement. I am being asked to confirm this is NOT needed to for PVC conduit. Since it's PVC, I am thinking it's OK, but I don't know of any publications that list these type of tolerances for SCH40 or SCH80 PVC.
The geotech report has said that we need to account for up to 1" differential settlement within this new building. Due to this, the cast iron piping for water that is also being routed in the slab is going to be wrapped in a compressible wrapping that will protect it from cracking due to this differential settlement. I am being asked to confirm this is NOT needed to for PVC conduit. Since it's PVC, I am thinking it's OK, but I don't know of any publications that list these type of tolerances for SCH40 or SCH80 PVC.