precast concrete pile

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precast concrete pile
what is a good slump requirement for precast concrete pile?
what is a goo side clearance for pouring?
is rotation ok for aurger piles not good during pumping?
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slump:
depends on required strength and the batch mix (w/ or w/o admixtures)
concrete cover (manufactured under plant control conditions):
exposed to earth => #6 bar (.75" diam.) to #11 bar (1.41" diam.) requires 1.5" cover
#5 bar (.625" diam) and smaller requires 1.25" cover
auger piles:  not clear as to what you are asking.
it is mix with 4000 psi w/ admixtures
cover 2 1/2" w/ #6 bars 50 ton capacity