Soil Cohesion as Affected by Time and Water Content

Kemper, W.D. and Rosenau, R.C. (1984) Soil Cohesion as Affected by Time and Water Content. Soil Science Society of America Journal. 48(5):1001-1006.

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Abstract

Cohesion increased for several months after disruption in moist
soils. Rate at which cohesion increased was slower in airdry soil,
but continued for years. Moduli of rupture of soils also increased
with time. Effects of water content on the rate at which cohesion
increases are compatible with an explanation of the bonding mechanism
in terms of slightly soluble components diffusing to and
cementing points of contact between particles. Cohesional forces due
to water are estimated and found to be large enough to provide a
major portion of the cohesion measured in soils. These estimates
are supported by decreased cohesion of a silty soil when dried. However,
cohesion of soils with larger amounts of clay generally increases
when they are dried, indicating that other bonding mechanisms
predominate.

Item Type:	Article
NWISRL Publication Number:	0531
Subjects:	Soil Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:52
Last Modified:	13 Jan 2017 23:13
Item ID:	421
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/421