Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prediction of salt influence on unfrozen water content in frozen soils
Abstract The influence of salts in the pore water in freezing soils is examined from the experimental viewpoint, using the differential scanning calorimetry technique for generation of multiple endotherms of the frozen test samples. The experimental values obtained for montmorillonite, kaolinite and grundite, are evaluated in terms of unfrozen water contents for the respective soils at various subfreezing temperatures for various concentrations of NaCl. Comparison of experimental values with theoretical predictions using a combined salt exclusion and diffuse double-layer model shows excellent quantitative agreement for the montmorillonite soil samples, but only qualitative agreement for the kaolinite and grundite soils. The reasons for this lie in the theoretical model requirement for interlamellar migration of water in soil freezing for suitable application of the diffuse double-layer part of the model.
Prediction of salt influence on unfrozen water content in frozen soils
Abstract The influence of salts in the pore water in freezing soils is examined from the experimental viewpoint, using the differential scanning calorimetry technique for generation of multiple endotherms of the frozen test samples. The experimental values obtained for montmorillonite, kaolinite and grundite, are evaluated in terms of unfrozen water contents for the respective soils at various subfreezing temperatures for various concentrations of NaCl. Comparison of experimental values with theoretical predictions using a combined salt exclusion and diffuse double-layer model shows excellent quantitative agreement for the montmorillonite soil samples, but only qualitative agreement for the kaolinite and grundite soils. The reasons for this lie in the theoretical model requirement for interlamellar migration of water in soil freezing for suitable application of the diffuse double-layer part of the model.
Prediction of salt influence on unfrozen water content in frozen soils
Yong, R.N. (Autor:in) / Cheung, C.H. (Autor:in) / Sheeran, D.E. (Autor:in)
Engineering Geology ; 13 ; 137-155
15.06.1978
19 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Predicting unfrozen water contents in frozen soils
| Engineering Index Backfile | 1966
MECHANICAL PROPERTIES OF UNFROZEN AND FROZEN SOILS
| British Library Conference Proceedings | 1995