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- Top or Bottom of Footing? | Eng-Tips
Frost depth always has been and should be to the bottom of the footing You are trying to avoid a condition where frost occurs in the soil directly under a footing and in which case the soil expands (or rather the moisture freezes and expands within the soil matrix) and dislocates the footing
- Frost Heave Calculation | Eng-Tips
Frost heave can easily be several inches in northern states with frost-susceptible (silty) soils and a shallow water table or just poor drainage On the other hand, dry, clean, sand or gravel may freeze without heaving Heave can vary a lot from year to year depending on moisture conditions and weather
- Frost Penetration and Movement | Eng-Tips
Frost penetration and frost depth effects are really two different animals As OldestGuy indicated, even in very cold climates, they recognize that footings do not have to go full depth of frost penetration if they are in non-frost susceptible soil
- Frost line depth | Eng-Tips
Hello All, How can I determine the frost line depth for a project in Virginia? All I can find in the code is in R301 2 which leaves in up to the locality The online version of the code is blank in this section Any help would be appreciated
- Crushed stone size limitation for non-expansive frostfree fill
Hi, Guys, Need help here I remember there was a thread before, which discusses about the crushed stone size for use as non-expansive frostfree fill But I
- Drilled Pier Frost Heave | Eng-Tips
Hello, I am currently designing concrete drilled piers, and per the geotech report, the recommendations incur a 1600 psf design stress for potential frost heave The recommendations also state that placing friction reducing material can be considered as an alternate option to prevent damage
- Exterior Large Equipment Pad with deep frost depths | Eng-Tips
Frost heave isn't really caused by just the moisture in the soil freezing (and the subsequent small volume increase) It becomes an issue when ice lensing happens This is when a horizontal layer of ice forms and continues to grow in thickness as water is drawn into the freezing layer through capillary action in the soil If you have non-frost susceptible soil (large granular fill), capillary
- Frost box? | Eng-Tips
A "Frost box" is probably a term for a variation (enhancement) of the sheet insulation over the pipe, where vertical insulation is placed along the pipe to better protect the pipe contain the heat
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