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Rebound of Five One‐Dimensionally Compressed Unsaturated Granular Soils
Author(s) -
Stone J. A.,
Larson W. E.
Publication year - 1980
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1980.03615995004400040032x
Subject(s) - soil water , pore water pressure , bulk density , bar (unit) , soil science , geology , environmental science , geotechnical engineering , mineralogy , oceanography
Rebound (decrease in bulk density after removal of mechanical stress) of five agricultural soils from four soil orders was measured at stresses of 1,000, 5,000 and 10,000 g cm −2 and pore water pressures from 0 to −1 bar. Rebound was usually < 0.05 g cm −3 . It was larger in soils containing expanding clays than in soils containing nonexpanding clays. It increased with stress in soils containing expanding clays but not in soils containing nonexpanding clays. Rebound decreased with repeated loading. It could not be delineated in terms of soil type, pore water pressure, or water content. In the prediction of bulk density of unsaturated agricultural soils based on their compression characteristics, rebound is usually small enough that it can be neglected.