Basics of Concrete Science by Professor L. Dvorkin, Professor O. Dvorkin - HTML preview
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),
(7.
12)
p ag
.
ag
ag
.
c
where F , C
– quantities of dry sand and crushed stone (gravel) in
ag
ag
laboratory (nominal) concrete mixture, kg/m3; H , H
– humidity of sand
f.ag
c.ag
and crushed stone (gravel), parts of unit.
Accordingly for manufacture of concrete, quantity of water (W ) is diminished
p
as compared to laboratory mixture on mass of water in aggregates:
W = W − F ⋅ H
− C ⋅ H