frost line

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Related to Frostline: Freezing depth

frost line

The depth of frost penetration into the soil.It varies from area to area,depending on the soil quality in a particular location, but can average 3 to 4 feet below the surface. Building foundations should penetrate below the frost line in order to avoid the shifting caused by frost heaving. Many local building codes allow an exception with the use of a frost-protected shallow foundation, which uses insulation and drainage techniques to raise the frost line to just below the surface.

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Few stoops are connected to their houses, and fewer still have frostline footings, which is why so many stoops have lost their balance and may suggest how they came to be named.
The perfect entrance
Accessories include blenders, vacuum loaders, air chillers, treaters, web guides, gravimetric extrusion-control systems, automatic transverse-direction gauge-profile control system, layflat-width control systems, and frostline height control system.
EXTRUSION SYSTEMS
The Blown Film Extrusion Simulator is said to show realistic interaction among screw speed, nip speed, and cooling air on bubble dimensions, thickness, and frostline.
Operators Train on 'Virtual' Extruders

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