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Re: CONCRETE RESERVOIR ON-GROUND SLAB THICKNESS[Subject Prev][Subject Next][Thread Prev][Thread Next]
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- Subject: Re: CONCRETE RESERVOIR ON-GROUND SLAB THICKNESS
- From: "Bill Sherman" <SHERMANWC(--nospam--at)cdm.com>
- Date: 04 May 98 10:06:01 -0400
According to US standard AWWA D110-95, minimum thickness of membrane floors shall be 4-inches, generally over a 6-inch granular base. ACI 344-W(88) also states 4-inches as the minimum, with 0.005 ratio of reinforcement. And this is what a prestressed tank manufacturer lists as their minimum floor thickness. Although I generally prefer 6-inches as a minimum slab thickness for water retaining structures, if you have a good subgrade and base material and a concrete working mat, it seems reasonable to use less than 6-inches.
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