Erosion in fractures Rheological properties of bentonite in different phasesLennart Börgesson, Clay Technology AB
Zone A (w<500%)
Radial transport in still water
Investigation of the density – swelling pressure relation (0.3-200 kPa)
Swelling pressure measurements
Swelling-compression tests
Compression-swelling tests
Investigation of shear strength and thixotropy. Different water ratios and resting times.
Triaxial tests
Vane tests
Fall cone tests
Zone B (500%
Radial transport in still water
Investigation of the density – swelling pressure relation (<0.3 kPa) if possible
Swelling pressure measurements
Swelling-compression tests
Compression-swelling tests
Investigation of shear strength and thixotropy. Different water ratios, salt content and resting times.
Rheometer tests
Vane tests
Fall cone tests
Zone B (500%
Tangential transport in flowing water
Investigation of viscous properties as a function of water ratio (shear resistance at different shear rates). Variation of water ratio, salt content and resting time
Viscometer tests
Rheometer tests
Zone C (w>5000%)
Tangential transport in flowing water
Investigation of viscous properties as a function of water ratio (shear resistance at different shear rates). Variation of water ratio, salt content and resting time
Viscometer tests
Rheometer tests
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