Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: CONCRETE RESERVOIR ON-GROUND SLAB THICKNESS

[Subject Prev][Subject Next][Thread Prev][Thread Next]
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.