We are designing protection concrete one way slab to bridge over existing concrete vault (has cover grating) in a road with heavy traffic. The proposed slab will have foundation that will be close to vault walls, I am planning to recommend installing 2" rigid insulation along vault walls to compensate for frost protection requirement of (4 ft.). Is this approach is ideal or someone could advise otherwise?
Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations JAE on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Foundation
- Thread starter Anckido
- Start date
From a thermal viewpoint I think it will mean nothing, since you have not a heat source in the materials. All will come more or less in such cold climate to the same temperature. I understand well it is a slow proces to change the inner temperature of thick parts, but on the average seasonal value will stay mostly. So the main use of anything like that between construction materials and soil is on permitting differential movement between soil and foundations, that is (laterally) benefitial; so a modest level of compressibility shouldn't do harm.
- Status
Similar threads
