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frost line
(redirected from frost lines)

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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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Using IBC with nine layers is complicated by the presence of as many as three or four different frost lines.
Nine-layer blown film: why it's a challenge, what it takes to ... by Schut, Ian H. / Plastics Technology
This was not the case, and the films that initially gave the highest haze values, those produced with high frost lines, also gave the highest values after coating with the oil.
Studies of optical haze and surface morphology of blown polyethylene ... by Smith, P.F.; Chun, I.; Liu, G.; Dimitrievich, D.; Rasburn, J.; Vancso, G.J. / Polymer Engineering and Science
 
 
 
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