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Directional strength in aggregates as affected by aggregate volume and by a wet/dry cycle
Year:
1990
Source of publication :
Journal of Soil Science
Authors :
Hadas, Aviva
;
.
Volume :
41
Co-Authors:
HADAS, A., Department of Soil Physics, Institute of Soils and Water, Volcani Center, Bet Dagan, 50250, Israel
Facilitators :
From page:
85
To page:
93
(
Total pages:
9
)
Abstract:
Reduction of aggregate size in the upper, tilled soil layer as a result of one wet/dry cycle was observed for sandy soil and clay soils. Bulk density of aggregates tended to increase as their size diminished for the clay after the wet/dry cycle, whereas similar changes in bulk density for the loam were observed only for aggregates smaller than 5.6 cm. Slaking and water‐drop impact seem to be the major factors in reducing the aggregate size of the sandy loam, while swelling and shrinkage affect clay aggregates of all size groups, but only aggregates smaller than 4.0 mm for the sandy loam. Tensile strength of the sandy loam aggregates was related to the axis along which the stresses were applied. A definite directional dependence of tensile strength was observed, e.g. the shorter the axis, the larger the tensile strength. The directional strength dependence was apparently not affected by one wet/dry cycle. Copyright © 1990, Wiley Blackwell. All rights reserved
Note:
Related Files :
aggregate
directional strength
tensile strength
water drop impact
wet-dry cycle
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More details
DOI :
10.1111/j.1365-2389.1990.tb00047.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
19121
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:26
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Scientific Publication
Directional strength in aggregates as affected by aggregate volume and by a wet/dry cycle
41
HADAS, A., Department of Soil Physics, Institute of Soils and Water, Volcani Center, Bet Dagan, 50250, Israel
Directional strength in aggregates as affected by aggregate volume and by a wet/dry cycle
Reduction of aggregate size in the upper, tilled soil layer as a result of one wet/dry cycle was observed for sandy soil and clay soils. Bulk density of aggregates tended to increase as their size diminished for the clay after the wet/dry cycle, whereas similar changes in bulk density for the loam were observed only for aggregates smaller than 5.6 cm. Slaking and water‐drop impact seem to be the major factors in reducing the aggregate size of the sandy loam, while swelling and shrinkage affect clay aggregates of all size groups, but only aggregates smaller than 4.0 mm for the sandy loam. Tensile strength of the sandy loam aggregates was related to the axis along which the stresses were applied. A definite directional dependence of tensile strength was observed, e.g. the shorter the axis, the larger the tensile strength. The directional strength dependence was apparently not affected by one wet/dry cycle. Copyright © 1990, Wiley Blackwell. All rights reserved
Scientific Publication
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