Abstract
In Australia, colluvial soils form large terrains which are often subjected to considerable erosion and mass movement. This study presents a laboratory evaluation of the improvement effected by hydrated lime, milled blast furnace slag and fly ash on a fine grained (erosive) colluvial soil in New South Wales, Australia. Geotechnical tests were conducted to determine the compaction and consolidation characteristics and the compressive and shear strength properties of the blended and natural soil specimens. The effect of these additives on the Atterberg limits and pH levels is also investigated. As large amounts of fly ash and steel slag are produced in New South Wales, it is economically attractive to utilize these industrial by-products for ground improvement rather than employing conventional methods such as lime treatment. This study demonstrates that for the colluvial soil tested, milled slag is the most effective in terms of improving the internal friction angle of the treated soil, while lime is the most suitable for achieving the optimum compressive strength. Non-pozzolanic fly ash is found to be inappropriate as a soil improving agent. The cost of ground treatment using the various additives is also estimated and compared.
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References
BalasubramaniamA.S., BergadoD.T., BuensuescoB.R. and WangW.C. (1989) Strength and deformation characteristics of lime-treated soft clays, Geotechnical Engineering, South East Asian Geotechnical Society 20, 49–65.
BromsB. (1982) Lime columns in theory and practice, in Proceedings of the International Conference on Soil Mechanics, Mexico, pp. 149–66, Sociedad Mexicana de Mecanica de Suelos, Mexico City.
Chowdhury, R.N. and Young, A.R.M. (1987) Field guide to slope instability in the Wollongong-Picton-Nattai region of New South Wales, Report prepared for the 5th International Conference and Field Workshop on Landslides, Wollongong, 62 p.
Fordham, G.A. (1993) Stabilization of soil from Werombi region, New South Wales, TRN Earthmoving Co. (personal communication).
GoldmanS.J., JacksonK. and BursztynskyT.A. (1986) Erosion and Sediment Control Handbook, International Edition, McGraw-Hill, New York.
Graham, O.P. (1989) Land Degradation Survey of New South Wales: 1987–1988, Technical Report No 7, Soil Conservation Service of NSW, pp. 1–30.
Habibi, M. and Sivakumar, M. (1992) Computerisation and application of new sediment transport estimation methods to river systems, in Proceedings of 11th Australian Fluid Mechanics Conference, Hobart, pp. 175–8, University of Tasmania.
HazeltonP.A. and TilleP.J. (1990) Soil landscapes of the Wollongong — Port Hacking, Soil Conservation Service of NSW, Sydney, pp. 50–3.
HausmannM.R. (1990) Engineering Principles of Ground Modification, McGraw-Hill, New York, 632 p.
IndraratnaB., NutalayaP. and KuganenthiraN. (1991a) Stabilisation of a dispersive soil by blending with fly ash, Quarterly Journal of Engineering Geology, 24, 275–90.
IndraratnaB., NutalayaP., KooK.S. and KuganenthiraN. (1991b) Engineering behaviour of a low carbon, pozzolanic fly ash and its potential as a construction fill, Canadian Geotechnical Journal, 28, 542–55.
Kitsugi, K. and Azakami, H. (1982) Lime-column techniques for the improvement of clay ground, in Proceedings of the Symposium of the Recent Developments in Ground Improvement Techniques, Bangkok, pp. 105–15 (A.S. Balasubramaniam, ed).
MiuraN., KogaY. and NishidaK. (1986) Application of deep mixing method with quicklime for the Ariake clay ground, Soils and Foundations, Journal of JSSMFE, 34, pp. 5–11.
Natt, G.S. and Joshi, R.C. (1984) Properties of cement and lime-fly ash stabilized aggregate, Transport Research Record 998, Transportation Research Board, National Research Council, pp. 32–40.
PrakashK., SridharanA. and RaoS.M. (1989) Lime addition and curing effects on the index and compaction characteristics of a montmorillonite soil, Geotechnical Engineering, South East Asian Geotechnical Society, 20, 39–47.
SaitohS., SuzukiY. and ShiraiK. (1985) Hardening of soil improved by deep mixing method, in Proceedings of the 11th International Conference on Soil Mechanics and Foundation Engineering, San Francisco, Vol. 3, pp. 1985–8, Balkema Publishers, Rotterdam.
SerraM., RobnetJ.C., MohkamM. and DaonkT. (1988) Improvement of dykes by liming, in Proceedings of the 8th European Conference on Soil Mechanics and Foundation Engineering, Vol. 2, pp. 947–50, Helsinki, Finland (Rathmayar and Saari eds), Balkema Publishers, Rotterdam.
SuzukiY. (1982) Deep chemical mixing method using cement as hardening agent, in Proceedings of the International Symposium on Soil and Rock Improvement Techniques Including Geotextiles, Reinforced Earth and Modern Piling Methods, Bangkok, pp. 1–24 (A.S.Babasubramaniam, ed) Balkema Publishers, Rotterdam.
VanImpeW.F. (1989) Soil Improvement Techniques and their Evolution, Balkema Publishers, Rotterdam.
WuT.H. and SangreyD. A. (1978) Strength properties and their measurement, in Landslides Analysis and Control, Transportation Research Board, National Academy of Sciences, Washington DC, pp. 139–52.
YamanouchiT., MiuraN., MatsubayashiN. and FukudaN. (1982) Soil improvement with quicklime and filter fabric, Journal of Geotechnical Engineering, ASCE, 108, 935–65.
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Indraratna, B. Utilization of lime, slag and fly ash for improvement of a colluvial soil in New South Wales, Australia. Geotech Geol Eng 14, 169–191 (1996). https://doi.org/10.1007/BF00452946
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DOI: https://doi.org/10.1007/BF00452946