Floating slab detail where it gets "toothed" into concrete fdn wall
Floating slab detail where it gets "toothed" into concrete fdn wall
(OP)
I have a client who has another building on campus where the interior slab on grade detail was totally floating and there is significant amount of floor finish cracking around the perimeter.
They really want me to tie the simple 4" slab on grade into the fdn wall. There is 8" masonry above the 14" concrete foundation wall. Has anybody ever toothed the slab into the masonry to hold it in place? I'm inclined to think the problem slab was subjected to warping/curling due to poor detailing/curing etc....during the first construction. What do you guys think?
They really want me to tie the simple 4" slab on grade into the fdn wall. There is 8" masonry above the 14" concrete foundation wall. Has anybody ever toothed the slab into the masonry to hold it in place? I'm inclined to think the problem slab was subjected to warping/curling due to poor detailing/curing etc....during the first construction. What do you guys think?






RE: Floating slab detail where it gets "toothed" into concrete fdn wall
RE: Floating slab detail where it gets "toothed" into concrete fdn wall
RE: Floating slab detail where it gets "toothed" into concrete fdn wall
Is the edge of the slab curling upward or downward? Is there any sign that it has settled relative to the wall. I ask because the fill around the footing may have been properly compacted, but the interior might have just had the top cut from the existing dirt. In that case, tying it to the wall would make the edges become a structural slab if there is more interior settling.
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: Floating slab detail where it gets "toothed" into concrete fdn wall
RE: Floating slab detail where it gets "toothed" into concrete fdn wall
Alternatively, you could tie the two together but provide a voidform under the slab for two or three feet adjacent to the wall.
BA
RE: Floating slab detail where it gets "toothed" into concrete fdn wall
RE: Floating slab detail where it gets "toothed" into concrete fdn wall
Garth Dreger PE
AZ Phoenix area
RE: Floating slab detail where it gets "toothed" into concrete fdn wall
1. Seal the cracks and observe.
2. Add a thin layer of light weight topping (after repair).