Summary
In this study, the evolution of fabric in compacted London Clay has been studied in detail. Samples were statically compacted to the same initial conditions and taken along a number of stress paths – involving both wetting and loading – to different final conditions. Wetting and loading was conducted using both conventional and osmotic oedometers (the latter allowed the suction to be varied in a controlled manner). The study of micro-fabric involved a combination of quantitative measurements of the pore space, using Mercury Intrusion Porosimetry, with qualitative observations of the overall arrangement of particles, using Environmental Scanning Electron Microscopy. The study showed important changes to take place in the soil micro-fabric during wetting, whereas the effect of loading was seen to be less severe. The results suggest that changes in the overall micro-fabric of a compacted clayey soil are strongly stress path dependent.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Al-Mukhtar M (1995) Macroscopic behaviour and macro structural properties of a kaolinite clay under controlled mechanical and hydraulic state, In: Proc 1st Int Conf on Unsaturated soils, Paris, France 1:3–9
Al-Mukhtar M, Belanteur N, Tessier D, Vanapalli SK (1996) The fabric of a clay soil under controlled mechanical and hydraulic stress states, Applied Clay Science 11:99–115
Alonso EE, Gens A, Hight DW (1987) Special problem soils. General Report. In: Proc 9th Eur Conf on Soil Mechanics and Foundation Engineering, Dublin, Ireland 3:1087–1146
Cui YJ, Loiseau C, Delage P (2002) Micro-structure changes of a confined swelling soil due to suction controlled hydration. In: Proc 3rd Int Conf on Unsaturated Soils, Recife, Brazil 2:593–598
Delage P, Lefebvre G (1984) Study of the structure of a sensitive Champlain clay and of its evolution during consolidation, Can Geotech J 21:21–35
Dineen K, Burland JB (1995) A new approach to osmotically controlled oedometer testing. In: Proc 1st Int Conf of Unsaturated Soils, Paris, France 2:459–465
Gens A, Alonso EE (1992) A framework for the behaviour of unsaturated expansive clays, Can Geotech J 29:1013–1032
Lapierre C, Leroueil S, Locat J (1990) Mercury intrusion and permeability of Louiseville clay, Can Geotech J 27:761–773
Monroy R (2006) The influence of load and suction changes on the volumetric behaviour of compacted London Clay. PhD Thesis, University of London (Imperial College), London, UK
Ridley AM, Burland JB (1993) A new instrument for the measurement of soil moisture suction, Geotechnique 43(2):321–324
Romero E, Hoffmann C, Castellanos E, Suriol J, Lloret A (2005) Microstructural changes of compacted bentonite induced by hydro-mechanical actions. Advances in understanding engineering clay barriers. In: Alonso EE, Ledesma E (eds) Proc Int Symp on Large Scale Field Testing in Granite, Sitges, Barcelona (Spain). A.A. Balkema Pub pp 193–202
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2007 Springer-Verlag
About this paper
Cite this paper
Monroy, R., Zdravkovic, L., Ridley, A. (2007). Fabric Changes in Compacted London Clay Due to Variations in Applied Stress and Suction. In: Schanz, T. (eds) Experimental Unsaturated Soil Mechanics. Springer Proceedings in Physics, vol 112. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-69873-6_4
Download citation
DOI: https://doi.org/10.1007/3-540-69873-6_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-69872-2
Online ISBN: 978-3-540-69873-9
eBook Packages: EngineeringEngineering (R0)