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Crystal growth and soil expansion: the role of interfacial pressure and pore structure

Author
Ramon, A.; Alonso, E.
Type of activity
Presentation of work at congresses
Name of edition
6th International Conference on Unsaturated Soils
Date of publication
2014
Presentation's date
2014-07
Book of congress proceedings
Unsaturated soils: research & applications: 6th International Conference on Unsaturated Soils (UNSAT2014): Sydney, Australia: july 2-4, 2014: proceedings
First page
875
Last page
881
Publisher
CRC Press
DOI
https://doi.org/10.1201/b17034-126 Open in new window
Repository
http://hdl.handle.net/2117/79438 Open in new window
URL
http://www.crcnetbase.com/doi/abs/10.1201/b17034-126 Open in new window
Abstract
The paper summarizes first a set of field observations in connection with the severe heave experienced by Lilla tunnel excavated in a Tertiary anhydritic claystone. Heave and swelling pressures against the tunnel rigid lining were a consequence of gypsum crystal growth on discontinuities. This process requires water because gypsum crystals precipitate from supersaturated solutions of calcium sulfate. The paper concentrates on the precipitation of crystal in pores of varying geometry with the pur...
Citation
Ramon, A., Alonso, E. Crystal growth and soil expansion: the role of interfacial pressure and pore structure. A: International Conference on Unsaturated Soils. "Unsaturated Soils: Research & Applications". Sydney: CRC Press, 2014, p. 875-881.
Keywords
Engineering controlled terms: Crystal growth, Geometry, Gypsum, Soil mechanics
Group of research
MSR - Soil and Rock Mechanics

Participants