fa2070
Structural
- Jun 6, 2007
- 58
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:
[ol]
[li]Compacted plain silt[/li]
[li]Compacted plain silt + cement (soil cement)[/li]
[li]Plain well-graded river sand confined by the concrete shell of the older pool[/li]
[li]Plain well-graded river sand + cement confined by the concrete shell of the older pool[/li]
[/ol]
Clarification: both silt and river sand are widely available at the job site, so there aren't any constraints with regard to material availability.
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:
[ol]
[li]Compacted plain silt[/li]
[li]Compacted plain silt + cement (soil cement)[/li]
[li]Plain well-graded river sand confined by the concrete shell of the older pool[/li]
[li]Plain well-graded river sand + cement confined by the concrete shell of the older pool[/li]
[/ol]
Clarification: both silt and river sand are widely available at the job site, so there aren't any constraints with regard to material availability.
Of all the four options, which one sounds more reasonable? Which one would configure a better base for the concrete floor slab?
Thanks.
