Fillcrete Displace Water?

Question

Fillcrete Displace Water?

TotalInferno (Computer)

(OP)

23 Jun 24 06:31

I'm wondering if fillcrete can be placed in a hole filled with water and retain it's strength? Will it displace the water?

Have an issue with new construction where we are digging out a snake pit filled with organic soil that will likely fill with water due to depth. We will want to backfill with fillcrete.

Any advice would be appreciated, thanks.

EireChch (Geotechnical) · Answer 1 · 2024-06-23 10:20:30

Yes it does, bored piles are often pored with water in the hole. A tremie pipe is used and placed a foot off the base of the hole. The concrete pushes the water out of the hole as filling is progressed.

TotalInferno (Computer) · Answer 2 · 2024-06-23 10:45:31

Sorry just to clarify I wanted to know about fillcrete (this is a a flowable cslm) not concrete.

EireChch (Geotechnical) · Answer 3 · 2024-06-24 08:31:51

I would think that its denser that water so should still displace it

HTURKAK (Structural) · Answer 4 · 2024-06-24 09:15:15

Quote (TotalInferno
I'm wondering if fillcrete can be placed in a hole filled with water and retain it's strength? Will it displace the water?)

It will displace the water but ,in order to gain proper strength , the concrete shall be placed with tremie method.
In case of incorrect concrete placement , (direct discharge and free fall into the hole bore with no tremie pipe), the concrete would be in poor quality and non-homogenous .
..

He is like a man building a house, who dug deep and laid the foundation on the rock. And when the flood arose, the stream beat vehemently against that house, and could not shake it, for it was founded on the rock..

Luke 6:48

LittleWheels (Structural) · Answer 5 · 2024-06-24 09:18:16

As long as good tremie techniques are followed, the water will easily be displaced.

TotalInferno (Computer) · Answer 6 · 2024-06-24 17:55:09

RE: Fillcrete Displace Water?

TotalInferno (Computer)

(OP)

24 Jun 24 17:55

Thanks all, this answers my question.

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Fillcrete Displace Water?