Abstract
Expansive soils cause serious problem in the civil engineering practice due to swell and shrinkage upon wetting and drying. Disposal of fly ash, which is an industrial waste in both cost-effective and environment-friendly way receives high attention in China. In this study, the potential use and the effectiveness of expansive soils stabilization using fly ash and fly ash-lime as admixtures are evaluated. The test results show that the plasticity index, activity, free swell, swell potential, swelling pressure, and axial shrinkage percent decreased with an increase in fly ash or fly ash-lime content. With the increase of the curing time for the treated soil, the swell potential and swelling pressure decreased. Soils immediately treated with fly ash show no significant change in the unconfined compressive strength. However, after 7 days curing of the fly ash treated soils, the unconfined compressive strength increased significantly. The relationship between the plasticity index and swell-shrinkage properties for pre-treated and post-treated soils is discussed.
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References
Ali F, Adnan A, Choy CK (1992) Use of rice husk ash to enhance lime treatment of soil. Can Geotech J 29:843–852
ASTM (2006) Annual book of ASTM standards. Section 4, construction, volume 04.08, Soil and Rock (I), pp. D420–D5611
ASTM C618 (2003) Standard specification for coal fly ash and raw or calcined natural pozzolan for use in concrete
ASTM D2487 (2006) Standard practice for classification of soils for engineering purposes (Unified Soil Classification System)
Bell FG (1996) Lime stabilization of clay minerals and soils. Eng Geol 42:223–237
Chen FH (1975) Foundations on expansive soils. Elsevier Science, Amsterdam, The Netherlands
Cokca E (2001) Use of class C fly ash for the stabilization of an expansive soil. J Geotech Geoenviron Eng ASCE 127(7):568–573
Consoli NC, Prietto PDM, Carraro JAH, Heineck KS (2001) Behavior of compacted soil–fly ash-carbide lime mixtures. J Geotech Geoenviron Eng ASCE 127(9):774–782
Du YJ, Li SL, Hayashi S (1999) Swelling-shrinkage properties and soil improvement of compacted expansive soil, Ning-Lian highway, China. Eng Geol 53:351–358
Holtz WG, Gibbs HJ (1956) Engineering properties of expansive clays. Trans ASCE 121:641–663
JTJ051-93 (1993) Standard test methods of soils for highway engineering. China Communication Press, Beijing (in Chinese)
JTJ051-93 part T0121-93 (1993) Standard test method for shrinkage of soils. Bureau of Chinese Standards, China Communication Press, Beijing (in Chinese)
JTJ051-93 part T0124-93 (1993) Standard test method for determination of free swell of soils. Bureau of Chinese Standards, China Communication Press, Beijing (in Chinese)
JTJ051-93 part T0125-93 (1993) Standard test method for determination of swell potential of soils. Bureau of Chinese Standards, China Communication Press, Beijing (in Chinese)
JTJ051-93 part T0127-93 (1993) Standard test method for determination of swelling pressure of soils. Bureau of Chinese Standards, China Communication Press, Beijing (in Chinese)
Kaniraj SR, Havanagi VG (2001) Behavior of cement-stabilized fiber-reinforced fly ash–soil mixtures. J Geotech Geoenviron Eng ASCE 127(7):574–584
Kate JM (2005) Strength and volume change behavior of expansive soils treated with fly ash. GeoFrontiers 2005, ASCE, Geotechnical Special Publication
Kumar BRP, Sharma RS (2004) Effect of fly ash on engineering properties of expansive soils. J Geotech Geoenviron Eng ASCE 130(7):764–767
Lees G, Abdelkader MO, Hamdani SK (1982) Effect of the clay fraction on some mechanical properties of lime–soil mixtures. J Inst Highw Eng 11:3–9
Liao SW (1984) Expansive soil and railway engineering. Chinese Railway Press, Beijing (in Chinese)
Locat J, Berube MA, Choquett M (1990) Laboratory investigations on the lime stabilization of sensitive clays: shear strength development. Can Geotech J 27:294–304
Mitchell JK (1993) Fundamentals of soil behavior, 2nd edn. Wiley, New York
Nalbantoglu Z (2004) Effectiveness of class C fly ash as an expansive soil stabilizer. Constr Build Mater 18:377–381
Nalbantoglu Z, Gucbilmez E (2001) Improvement of calcareous expansive soils in semi-arid environments. J Arid Environ 47:453–463
Nalbantoglu Z, Gucbilmez E (2002) Utilization of an industrial waste in calcareous expansive clay stabilization. Geotech Test J 25(1):78–84
Nalbantoglu Z, Tuncer ER (2001) Compressibility and hydraulic conductivity of a chemically treated expansive clay. Can Geotech J 38(1):154–160
Narasimha RS, Rajasekaran G (1996) Reaction products formed in lime-stabilized marine clays. J Geotech Eng ASCE 122(5):329–336
O’Neill MW, Poormoayed N (1980) Methodology for foundations on expansive clays. J Geotech Eng ASCE 106(GT 12):1345–1367
Richards BG, Perter P, Martin R (1984) The determination of volume change properties in expansive soils. In: Proceedings of the 5th International Conference on Expansive Soils, Adelaide, Australia, pp 179–186
Seed HB, Woodward RJ, Lundgern R (1962) Prediction of swelling potential for compacted clays. J Soil Mech Found Div 88(3):53–88
Sivapullaiah PV, Prashanth JP, Sridharan A (1996) Effect of fly ash on index properties of black cotton soil. Soils Found 36(1):97–103
Acknowledgements
This study is financially supported by Natural Science Foundation of China (NSFC) (Grant No. 50478073), Science Research and Develop Foundation of Hefei University of Technology (No. 2007GDBJ031). The authors highly appreciate Professor A. Sridharan, Guest Professor of Institute of Lowland Technology, Saga University for his helpful comments and discussions. The authors also thank Professor Guoqiang Wang, Hefei University of Technology, for his guidance in the sampling of the expansive soil.
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Zha, F., Liu, S., Du, Y. et al. Behavior of expansive soils stabilized with fly ash. Nat Hazards 47, 509–523 (2008). https://doi.org/10.1007/s11069-008-9236-4
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DOI: https://doi.org/10.1007/s11069-008-9236-4