Tremie placement with SCC
Tremie placement with SCC
(OP)
Does anyone have experience with using a SCC for placement of concrete inside a pile using a tremie pipe. This is a true tremie situation into water. Contactor plans on using a pump and not a gravity hopper.
My concern is that the SCC will not have the ability to keep the tremie embedded in fresh concrete and will just move out of the way with each stroke of the pump.
Any experience or thoughts?
My concern is that the SCC will not have the ability to keep the tremie embedded in fresh concrete and will just move out of the way with each stroke of the pump.
Any experience or thoughts?





RE: Tremie placement with SCC
RE: Tremie placement with SCC
Most bored piles are constructed using high workability concrete, if measured by slump around 200-250mm. This is not the true definition of self compacting concrete, but does not require vibrators for compaction.
Tremie pipes are good as they come in standard lengths of say 4 or 6m so it is very easy to check the location of the end of the tremie pipe compared to the level of the concrete in the bore. With a pump and operator it will be more difficult (perhaps guage lines should be marked on the pump hose before starting) Pump booms tend to jump about a bit during operation.
I would prefer casting into bentonite or polymer. But if water is suitable I think civilperson means to discard 4-6' not 4-6".
RE: Tremie placement with SCC
RE: Tremie placement with SCC
Good lock