What is a slab foundation?
It is a flat piece (slab) of concrete sitting on compacted soil or stone, usually meaning there is no basement. These generally only appear in areas where the ground does not freeze frequently.
It all depends on the ground conditions and the load of the building. The is also a little confusion around your terminology as the term 'foundation slab' is legitimate. Maybe you are referring to strip foundation versus raft foundation. There are also basement foundations which will help stiffen the construction of a building and anchor it into the ground.
The bathtub trap for a tub located directly on a slab foundation is in the soil under the concrete slab. The builder should have left a small opening in the foundation around drain and trap so that it may be serviced in the future. WIth some excavation you should find the trap about eight inches below the slab surface probably in the direction of a wall where the drain vent stack will rise up through…
take example as a building Basically there are slab, beams and columns The loadings are applied on the beams and slabs wall on the beam is beam load. wall on the slab is slab load. column is the element which connect all the beams and bring the load to foundation. slab is the element which transfer slab load to beam. Beam is the element which transfer slab loads and beam loads to columns.