Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Assessment of structural evolution of aggregated soil using neutron tomography
Autor Koliji, A.; Lehmann, P.; Vulliet, L.; Laloui, L.; Carminati, A.; Vontobel, P.; Hassanein, R.;
Journal / Serie Water Resources Research
Erscheinungsjahr 2008
Department HDG;
Band/Volume 44
Heft 5
Sprache englisch;
Keywords soil structure; double porosity; structure degradation; neutron tomography; image analysis
Abstract The advanced nondestructive method of neutron tomography, together with image analysis, is used to evaluate the structural evolution of an aggregated soil during one-dimensional compression tests. Aggregation of primary particles is a commonly observed phenomenon in natural and compacted soils that causes an open soil structure with two dominant pore sizes corresponding to macropores (interaggregates) and micropores (intraaggregates). The evolution of macroporosity and the degradation of structures are evaluated by means of morphological parameters such as volume fraction, size distribution, and chord length. Change in the structure is then linked to the macroscopic soil response. It is observed that the major structural modifications are associated with irreversible strains in soil
ID 1121
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=1121
Koliji, A., Lehmann, P., Vulliet, L., Laloui, L., Carminati, A., Vontobel, P., Hassanein, R. (2008):
Assessment of structural evolution of aggregated soil using neutron tomography
Water Resour. Res. 44 (5), W00C07