slab deterioration
slab deterioration
(OP)
The slab-on-grade is in the basement of a 70-year-old masonry grocery warehouse 100' x 80'. THere is widespread efflorescence, some surface deterioration, some heaving. The floor will be used to house exercise equipment (light loading) (fitness center)to be carpeted. The floor does not seem to be damp at the moment. Could one place a 2" lift of concrete with some sort of fabric between with confidence even if the slab has been severly weakend by age, or aggregate attack, or whatever. Assuming that whatever source of moisture that might have been present at one time is no loger present.






RE: slab deterioration
An alternative would be similar to a "crack and seat" pavement renovation. Break up the existing slab, provide separator or fill all voids with sand,compact and place new slab over the prepared subgrade...that way you keep the waste in place and don't need to get it out of the basement. Would also help maintain more ceiling height.
RE: slab deterioration
RE: slab deterioration
RE: slab deterioration
Hope this is helpful.