Most suitable fill material
Most suitable fill material
(OP)
Hello,
I have to build a new reinforced concrete pool inside an old, unmaintained and distressed one. The newer pool will be smaller and shallower, that is, the floor slab will be 6 ft. above the old slab which means that something like 6 ft. of fill will have to be placed and compacted over the old concrete slab.
After some brainstoming, the options for the fill material above which the new floor slab will be poured, were narrowed down to:
Of all the four options, which one sounds more reasonable? Which one would configure a better base for the concrete floor slab?
Thanks.
I have to build a new reinforced concrete pool inside an old, unmaintained and distressed one. The newer pool will be smaller and shallower, that is, the floor slab will be 6 ft. above the old slab which means that something like 6 ft. of fill will have to be placed and compacted over the old concrete slab.
After some brainstoming, the options for the fill material above which the new floor slab will be poured, were narrowed down to:
- Compacted plain silt
- Compacted plain silt + cement (soil cement)
- Plain well-graded river sand confined by the concrete shell of the older pool
- Plain well-graded river sand + cement confined by the concrete shell of the older pool
Of all the four options, which one sounds more reasonable? Which one would configure a better base for the concrete floor slab?
Thanks.





RE: Most suitable fill material
If no fill was placed during pool construction, no settlements should be expected theoretically since water and pool slab should weight less than excavated material.
RE: Most suitable fill material
RE: Most suitable fill material
Good luck. Sounds like you've got a pretty managable situation there.
RE: Most suitable fill material
RE: Most suitable fill material
RE: Most suitable fill material
Dik