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Sources for Frost Depth Values - Structural engineering general . . . to frost shall have the thickness of such a layer included in meeting the design frost depth defined in Section 3 2 Undisturbed granular soils or fill material with less than 6% of mass passing a #200 (0 074 mm) mesh sieve in accordance with ASTM D422 and other approved non–frost-susceptible materials shall be considered non–frost-susceptible
Exterior Large Equipment Pad with deep frost depths 7 - Eng-Tips So, the frost depth say 6 ft specified at local code may occur at outside of insulated SOG, but the frost depth below SOG will be around just one ft I want to add that, if the soil is collapsible ( silty clay with some organics) the ground may settle every year at the end of frost season My suggestion to BSPE90 will be;
Frost line depth - Foundation engineering - Eng-Tips Here a number of codes do define "frost depth" as required foundation depth for outside walls However, that "frost depth" can vary considerably, depending on moisture content of soil The lower moisture content of granular soils will allow deeper "frost penetration", but fortunately those soils are not usually types that heave
Frost box? - Foundation engineering | Eng-Tips the depth of frost penetration depends on a lot of things One factor is the presence of water in the soil As that material is at 32 degrees, it gives off heat of fusion That heat release slows down the migration of that freezing front As an extreme of this, take the depth of frost at a lake as compared to soil on land
Floating slab on grade detail at exterior door 1 - Eng-Tips I see a similar condition all the time in my jurisdiction but with 4' frost walls We're always dealing with expansive clays Most of he geotechnical reports here will specify floating slabs but with a downturn dowels at the exterior doors It's a bit of a contradiction which, presumably, is why you've posed the question
How is frost depth determined calculated? 1 - Eng-Tips Frost depth is an aspect of the majority of foundation design that I do, but thinking about it, I realize I'm not sure how the actual frost depth is determined I see STP1358, "Remote Field Methods to Measure Frost Depth" (from the ASTM website) outlines several ways that frost depth can be calculated
Slab on grade amp; frost heave 1 - Eng-Tips Constructing a "frost wall" does nothing for the area under the slab if that zone goes below 32 degrees F Concrete is a good conductor of heat out of the area under the slab However, if the contents of the tank are kept above freezing, then you may have no problem, since it keeps the ground below the slab warm
Structural engineering general discussion - Eng-Tips To prevent heaving beneath utility pads on grade we usually either hire a geotechnical engineer to check the soil to see if it is frost susceptible, or excavate and replace with a granular, non-frost susceptible material of sufficient particle size (gravel, crushed stone)to a depth equal to the depth of frost dictated by local authorities
Purpose of thickened edge for concrete slabs on grade? 2 - Eng-Tips A thickened slab edge usually won’t solve a frost problem, if such problem exists, that needs a deeper edge beam, or wall and ftg The edge of a slab is generally its weakest point since it has no added adjacent support from surrounding slab on one edge