Frost heave

MramJ · 2025-04-29T03:08:52+0100

Hello everyone,

I am looking for a way to estimate frost heave of soils without specialized laboratory testing or investigation. I have frost depth, hydrometer results (showing 54% silts), and moisture content.

Is there a straightforward way to obtain a reasonably acceptable estimate with a factor of safety?

Thank you

jhnblgr · 2025-04-29T11:58:01+0100

https://ascelibrary.org/doi/abs/10.1061/IJGNAI.GMENG-7710

What is the intent of this?
It’s best to remove frost susceptible soils.

MramJ · 2025-04-29T15:30:22+0100

jhnblgr said:
https://ascelibrary.org/doi/abs/10.1061/IJGNAI.GMENG-7710

What is the intent of this?
It’s best to remove frost susceptible soils.

The client cannot remove the frost susceptible soils and considering a compressible expanded polystyrene fill forms, so they need the estimated amount of frost heave.

jhnblgr · 2025-04-29T16:21:10+0100

Reason why they can’t remove?
If they are installing insulation follow shallow foundation design for frost protection
Is this heated or unheated space?
What is the function?
Would the compressible foam compress under dead load or is there a foundation load path that spans the area?

dik · 2025-04-29T16:23:26+0100

Silts are very bad for frost heave... you have to try to eliminate the frost... extruded polystyrene? High strength if necessary.

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