by Pile foundation, suspended formwork, sloping roof, and slope: These construction sites require concrete flowability not to be too high, as long as it can meet the pumping requirements.
If the flowability is too high, it will not be good.
When the collapse is too large, the pile foundation and suspended formwork cannot be formed.
The sloping roof and sloping concrete flow down when they are poured on.
So the slump design for this part is (120 ± 30) mm.
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