Bricks, Masonry, Asphalt and Concrete - Shed slab issue
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Hellrazor
08-07-05, 11:45 AM
Ok guys, here is one that is stumping me on how to tackle the job at hand.
Existing 12x20 shed that is 1 and 3/4 stories high. Upper level is a 6' storage loft. The left side (10x12) is enclosed on a 4" slab. The right side (10x12) is sitting on pillars and is open in the front like a wood shed and 2A modified for the floor. I need to put a slab on the right side and another 12x20 slab in the front for a single story addition. How would you recommend tieing into the pillars and other slab? I know i have to pin the old and new slab, but i am not sure how to handle the pillars and expansion joint issues on all the rest. The pillars are all setting around 32" deep which excedes code rquirements by 8 inches so heaving is not an issue.
I don't mind concrete work until i have to tie things together like this..
Existing 12x20 shed that is 1 and 3/4 stories high. Upper level is a 6' storage loft. The left side (10x12) is enclosed on a 4" slab. The right side (10x12) is sitting on pillars and is open in the front like a wood shed and 2A modified for the floor. I need to put a slab on the right side and another 12x20 slab in the front for a single story addition. How would you recommend tieing into the pillars and other slab? I know i have to pin the old and new slab, but i am not sure how to handle the pillars and expansion joint issues on all the rest. The pillars are all setting around 32" deep which excedes code rquirements by 8 inches so heaving is not an issue.
I don't mind concrete work until i have to tie things together like this..
Concretemasonry
08-07-05, 01:32 PM
Can you tie al the slabs with pins to prevent differential vertical movement (after compacting well)?
Then isolate the pillars or piers with a thin expansion joint or bond breaker like tar paper.
It is always tricky to tie together a surface supported structure(floating slab) and a deep supported structure(piers) since Mother Nature has her own ideas.
Dick
Then isolate the pillars or piers with a thin expansion joint or bond breaker like tar paper.
It is always tricky to tie together a surface supported structure(floating slab) and a deep supported structure(piers) since Mother Nature has her own ideas.
Dick
Hellrazor
08-07-05, 02:28 PM
I was planning on drilling the holes for the pins before i start dumping 2A for the new area. I can stick a chunk of cardboard/whatever in each hole to keep stone out until i get the stone compacted. With the slight slope in the area, i will not be disturbing more then 2" of soil in a 2'x10' area in front of the original slab. Its kind of a win win situation on the slope, its just enough to minimize excavation and just enough i wont need an excessive ammount of stone. The stone in the open shed area only comes to the bottom of the old slab, thats been settled for years and lets me just enough room to drill. The soil in the area is that darn thick clay that makes digging fun. Augers either chip there way throught it when dry or you clean the auger every foot when wet.
I know the 2 styles together is a pain. Thats the interesting part of the whole process. I also threw around the idea of using piers again, but why go through the hassle if i can just pour a slab. The slab is going in either way.
I know the 2 styles together is a pain. Thats the interesting part of the whole process. I also threw around the idea of using piers again, but why go through the hassle if i can just pour a slab. The slab is going in either way.