Volume : 3, Issue : 9, SEP 2017

AN EXPERIMENTAL INVESTIGATION ON HYDRATED HYDRATED LIME AND FLY ASH IN IMPROVING CBR OF SOIL IN ANDHRA PRADESH

D KRANTHI KUMAR, B.SRIKANTH

Abstract

The sub-grade, sub base and base course materials affects the quality and life of pavement greatly. The type and quality of sub grade soil is most important of these. But most of flexible pavements in India are used to be constructed over weak sub grade. The California Bearing Ratio (CBR) of these sub grade have very low, it need to more thickness of pavement. This paper represents a study of Hydrated Lime and Fly Ash as the admixture in improving the maximum dry density (MDD), optimum moisture content (OMC), California Bearing Ratio (CBR), Liquid Limit, Plastic Limit. The Hydrated Lime and Fly Ash percentages varied from 3% to 10% .The optimum moisture content(OMC), California Bearing Ratio(CBR) increased with an increase in percentage of Hydrated Lime but liquid limit, Plastic limit, maximum dry density(MDD) of soil decreased with increase in Hydrated Lime percentage. The liquid limit, plastic limit and maximum dry density (MMD) of the soil decreased and the optimum moisture content (OMC), California Bearing Ratio (CBR) increased with an increase in percentage on Fly Ash. The objective of this work is to estimate the effect of Hydrated Lime and Fly Ash on some geotechnical properties of soil, in order to determine the suitability of Hydrated Lime and Fly Ash for use as a modifier in the treatment of soil for roadwork. The aim of this investigation is to quantify the optimum quantity of Hydrated Lime and Fly Ash on the performance in term of CBR especially when it is planned to be used as sub grade in highways.

Keywords

CBR value, Hydrated Lime, Fly Ash, MDD.

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References

1. Arora K.R. (2008), Soil Mechanics and Foundation Engineering, Standard Publishers Distributers, New Delhi, Seventh Edition. 2. P. Purushothama Raj (2008), “Soil Mechanics and Foundation Engineering” Published by Dorling Kindersley (India) Pvt. Ltd. 3. R.K. Sharma (2012) “Subgrade Characteristics of Locally Available Soil Mixed with Fly Ash and Randomly Distributed Fibres” International Conference on Chemical, Ecology and Environmental Science (ICEESS), 177-181. 4. O’ Flaherty C.A. (1988), “Highways,” Third Edition Vol.2 “Highway Engineering” Edward Arnold, London. 5. IS: 1498-1970, “Classification and Identification of Soils for General Engineering Purposes”
6. IS 2720: Part 3 : 1980 Methods of Test for Soils (Determination of Specific Gravity) 7. IS 2720: Part 4 : 1985 Methods of Test for Soils (Grain Size Analysis) 8. IS 2720: Part 5 : 1985 Methods of Test for Soils (Determination of Liquid and Plastic Limit) 9. IS 2720: Part 7 : 1980 Methods of Test for Soils (Determination of Water Content-Dry Density Relation Using Light Compaction) 10. IS 2720: Part 8 : 1983 Methods of Test for Soils (Determination of Water Content-Dry Density Relation Using Heavy Compaction) 11. IS 2720: Part 16 : 1987 Methods of Test for Soils (Laboratory Determination of CBR) 12. IS 2720: Part 31 : 1990 Methods of Test for Soils (Field Determination of CBR) 13. Khanna S.K. & Justo C.E. 2001, “Highways Engineering,” Third Edition Vol.2, “Highway Engineering” Edward Arnold, London. 14. Arman, A., and Munfakh, G.A. Stabilization of Organic Soils with Lime. Engineering Research Bulletin No. 103, Division of Engineering Research, Louisiana State University, Baton Rouge, 1970. 15. Chou, L. Lime Stabilization: Reactions, Properties, Design, and Construction. State of the Art Report 5, Transportation Research Board, Washington, DC, 1987. 16. Eades, J.L, and Grim, R.E. Reaction of Hydrated Lime with Pure Clay Minerals in Soil Stabilization. Bulletin 262, Highway Research Board, Washington, DC, 1960. 17. Little, D.N. Handbook for Stabilization of Pavement Subgrades and Base Courses with Lime. Kendall/Hunt, Iowa, 1995.