Compressibility of Cement Treated Soft Soils

Authors

Faculty of Civil Engineering, University of Mohaghegh Ardabili, Ardabil

Abstract

Cement treatment produces bonding strength between soils particles that makes their behavior different from the behavior of reconstructed soils without structure. Soft cemented soils show a great change in their void ratio after virgin yielding as the result of destruction of their cemented structure. In this paper the compressibility of soft cemented soils was investigated in the laboratory. In order to obtain highly compressible cemented soil specimens, an artificially soil was produced mixing clay, silt and sand with cement and polystyrene granules with water content more than liquid limit. All the tests carried out on oven dried specimens at similar conditions such as temperature, stress level and loading rate in oedometer apparatus. Based on the experimental results a pressure-void ratio relationship was proposed for cement treated soft soils. The proposed model employs a variable slope for compression curve in ln(e)-ln(p’) space. The performance of the proposed model was also verified for compression of naturally cemented soils using the data available in the literature.

Keywords

References

بهبودی مصمم س ت، "بررسی رفتار تنش-کرنش خاک­های اصلاح شده با سیمان"، پایان­نامه کارشناسی­ارشد، رشته مهندسی عمران، دانشگاه محقق اردبیلی، 1393، 77-78.
Balmer G, “Shear strength and elastic properties of soil-cement mixture under triaxial loading”, Portland Cement Association Research and Development Laboratories, US, 1958.
Butterfield R, “A natural compression law for soils (an advance on e-log p’)”, Geotechnique, 1980, 29 (4), 469-480.
Chong S, Santamarina J, “Soil compressibility models for a wide stress range”, Journal of Geotechnical and Geoenvironmental Engineering, 2016, 142 (6).
Chowdhury B, Haque A, Muhunthan B, “New Pressure–Void Ratio Relationship for Structured Soils in the Virgin Compression Range”, Journal of Geotechnical and Geoenvironmental Engineering, 2014, 140 (8).
Coop MR, Atkinson JH, “The mechanics of cemented carbonate sands”, Geotechnique, 1993, 43 (1), 53-67.
Collins IF, Kelly PA, “A thermomechanical analysis of a family of soil models”, International Journal for Numerical and Analytical Methods in Geomechanics, 2002, 52 (7), 507-518.
Consoli NC, Rotta GV, Prietto PDM, “Yielding- compressibility- strength relationship for an artificially cemented soil cured under stress”,  Geotechnique, 2006, 56 (1), 69-72.
Desai CS, “Disturbed state concept as unified constitutive modeling approach”, Journal of Rock Mechanics and Geotechnical Engineering, 2016, 8, 277-293.
Desai CS, “Mechanics of materials and interfaces: The disturbed state concept”, CRC Press, 2001.
Haeri SM, Hamidi A, Tabatabaee N, “The effect of gypsum cementation on the mechanical behaviour of gravely sand”, Geotechnical Testing Journal, 2005, 28 (4), 1-11.
Hong ZS, Zeng LL, Cui YJ, Cai YQ, Lin C, “Compression behaviour of natural and reconstituted clays”, Geotechnique, 2012, 62 (4), 291-301.
Horpibulsuk S, Rachan R, Suddeepong A, Liu MD, Du YJ, “Compressibility of lightweight cemented clays”, Engineering Geology, 2013, 159, 59-66.
Houlsby GT, “A study of plasticity theories and their applicability to soils”, PhD Thesis, University of Cambridge, 1981.
Houlsby GT, Puzri AM, “Principles of hyperplasticity: an approach to plasticity theory based on thermodynamic principles”, Springer Verlag, London, UK, 2006.
Lagioia R, Nova R, “An experimental and theoretical study of the behaviour of a calcarenite in triaxial compression”, Géotechnique, 1995, 45 (4), 633-648.
Liu MD, Carter JP, “On the volumetric deformation of reconstituted soils”, Research Report No. R765, Sydney University, 1998.
Liu MD, Carter JP, “Virgin compression of structured soils”, Géotechnique, 1999, 49 (1), 43-57.
Liu MD, Carter JP, Desai CS, Xu KJ, “Analysis of the compression of structured soils using the disturbed state concept”, International Journal for Numerical and Analytical Methods in Geomechanics, 2000, 24, 723-735.
Medero GM, Schnaid F, “Oedometer behavior of an artificial cemented highly collapsible soil", Journal of Geotechnical and Geoenvironmental Engineering, 2009, 135, 840-843.
Mitchell JK, “The properties of cement-stabilized soils”, Proceeding of Residential Workshop on Materials and Methods for Low Cost Road, Rail, and Reclamation Works, Leura, Australia, 1976.
Mitchell JK, Soga K, “Fundamentals of soil behavior”, John Wiley & Sons, US, 2005, pp 325-350.
Ouria A, Desai CS, Toufigh V, “Disturbed state concept based solution for consolidation of plastic clays”, ASCE Intenational Journal of Geomechanics, 2015, 15 (1).
Rotta GV, Consoli NC, Prietto PDM, Coop MR, Graham J, “Isotropic yielding in an artificially cemented soil cured under stress”, Geotechnique, 2003, 53 (5), 493-501.
Sariosseiri F, Muhunthan B, “Effect of cement treatment on geotechnical properties of some Washington State soils”, Engineering Geology, 2009, 104, 119-125.
Uddin K, Balasubramaniam AS, Bergardo DT “Engineering behaviors of cement-treated Bangkok soft clay”, Geotechnical Engineering Journal, 1997, 28 (1), 89-119.
Yang C, Carter JP, Sheng D, “Description of compression behaviour of structured soils and its application”, Canadian Geotechnical Journal, 2014, 51 (8), 921-933.
Journal of Civil and Environmental Engineering
Volume 47.1, Issue 86 - Serial Number 86
Spring 2017
June 2017
Pages 1-9

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