what is frost action?
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13
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frost action. the process of alternate freezing and thawing of moisture in soil, rock and other materials, and the resulting effects on materials and on structures placed on, or in, the ground. frozen ground or permafrost.
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8
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The mechanical weathering process caused by repeated cycles of freezing and thawing of water in pores, cracks, and other openings, usually at the surface.
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