International Journal of Modern Trends in Engineering and Research www.ijmter.com e-issn No.:2349-9745, Date: 28-30 April, 2016 Effect of Iron Dust on Compaction Characteristics of Soil Prof. V.M.Pandit 1, Ajinkya G. Nerkar 2, Sagar N. Jagtap 3, Tushar Y. Gaikwad 4, Vaibhav B. Bhandare 5 1 Assistant Professor at Department of civil Engineering, S.N.J.B s KBJ COE, Chandwad, vmsmfe@gmail.com 2 Student Department of Civil Engineering, S.N.J.B s KBJ COE, Chandwad, vaibhav.bhandarec2792@gmail.com Abstract-Soil plays important role to support the superstructure & distribute the load. If the bearing capacity of soil is low then failure of structure may occur. Black cotton soil has ability to undergo large swelling & shrinkage which is not suitable for use as foundation soil. To overcome this problem, stabilization is effective technique. Stabilization helps to improve the property of soil. We can improve the soil property by stabilization, using admixture waste material, lime, fly ash, rice husk ash, waste polymer, iron dust, steel slag. In present work, the effect of iron dust on compaction properties of soil is studied. We used iron dust which is mixed with Black cotton soil at different percentage (0%, 1.5%, 3%, 4.5%, 6%) by weight of soil. The variations in compaction characteristics (OMC and MDD) with respect to variations in percentage of iron dust are observed by conducting Standard Proctor Test. Keywords- Soil stabilization, Iron dust, OMC (Optimum Moisture Content), MDD (Maximum Dry Density) I. INTRODUCTION Black cotton soil is very expensive soil. This expensive soil undergoes large volume changes due to seasonal variation in moisture content. Such soil possesses swelling and shrinkage nature due to presence of montmorillonite clay mineral. As a result structures constructed on black cotton soil are subjected to serve deformations and frequent repair leads to high cost of maintenance. Useless land for construction can be converted to be useful land for construction by using land improvement technique. Soil stabilization is one of the techniques to improve soil properties. It increases the bearing capacity of soil, decrease swelling & permeability, and increase efficiency. There are various type of soil stabilization method they are divided into two categories chemical stabilization and mechanical (physical) stabilization. M Rupas Kumar et.al.(2015) investigated the effect of waste iron powder to improve the geotechnical properties of an expensive soil stabilize. The results are the liquid limit values are decreasing with increase in iron powder in the soil while plastic limit remain constant. In present study, the black cotton soil is replaced with different proportions of waste iron powder and various test carried out. @IJMTER-2016, All rights Reserved
International Journal of Modern Trends in Engineering and Research (IJMTER) 2.1 Materials: Specification of soil- II. MATERIALS AND METHODOLOGY Nearly black highly plastic silty clayey soil was used in this study, collected from Aadgaon, Tal- Nasik, Dist- Nasik, and Maharashtra India. The collected soil was loose, wet and it was pulverized manually by hammer. Then the soil was screened through the sieve of 4.75 mm aperture before preparing the specimens for testing. And also oven dried the soil at 110 c for 24 hours before using specimen. Waste Iron Dust The waste iron dust used in this study collected from the Malegaon stand workshop, Nasik. Waste iron dust passing through BS sieve 475µ. Laboratory investigations are carried out on pure soil and soil mixed with waste iron dust in accordance with BIS specification and their result were analyzed and compared. The soil is tested under different properties of soil by mixing iron dust with different proportion and compared with the pure soil properties Table 1 Index Properties of Soil Color Black Natural Water Content (%) 3.50 Liquid Limit (%) 47 Plastic Limit (%) 33.33 Shrinkage limit (%) 16.55 Plasticity index of soil (%) 13.794. Specific Gravity(GS) 2.6 As per USCS soil can be classified as MI III. RESULT In the present investigation a series of compaction tests are carried out by varying soil and iron dust proportion. For each test we found the value for OMC and MDD. We are adding iron dust in percentage (0%, 1.5%, 3.0%, 4.5%, and 6.0%) by weight of soil. @IJMTER-2016, All rights Reserved 578
International Journal of Modern Trends in Engineering and Research (IJMTER) Replacement of iron dust in soil (%) Table 2 Value of OMC (%) and MDD (gm/cc) with variation in % of Iron dust OMC (%) MDD(gm/cc) 0 17.32 1.66 1.5 19.67 1.62 3.0 19.72 1.59 4.5 17.62 1.65 6 15.57 1.69 25 20 OMC (%) 15 10 5 0 0% 1.50% 3.00% 4.50% 6% Percentage of Iron dust Graph.1 Percentage of iron dust vs. OMC @IJMTER-2016, All rights Reserved 579
1.7 International Journal of Modern Trends in Engineering and Research (IJMTER) 1.68 1.66 MDD (gm/cc) 1.64 1.62 1.6 1.58 1.56 1.54 0% 1.50% 3.00% 4.50% 6% Percentage of Iron dust Graph.2 Percentage of iron dust vs. MDD IV. CONCLUSION It is observed that by adding of iron dust in the soil from 0% to 3 % OMC increases and MDD decrease. OMC of mix at 3.0% is increased by 13.85% as compared to OMC of 100% soil and MDD of mix at 3.0% is decreased by 4.22% as compared to MDD of 100% soil. Then further addition of iron dust in the soil OMC is decrease and MDD is increase. We get the optimum point of Iron dust is at 3%. REFERENCES 1. BarazeshArash et al The Effect Of Adding Iron Powder On Atterberg Limits Of Clay Soils Department of Civil Engineering, Arak Branch, Islamic Azad University, Arak, Iran Amirkabir University of Technology, Tehran, Iran 2. Gray, D. H. and AL-Refeai, T. (1986), Behaviour of Fabric Versus Fiber-reinforced Sand, Journal of Geotechnical Engg., ASCE, Vol. 112, No. 8, pp.804-820. 3. Gray, D. H. and Ohashi, H (1983 ) Mechanics of fibre reinforcement in sand Journal of Geotechnical Engineering, ASCE, Vol. 109, pp.335-351 4. Kumar M Rupaset. al Soil Stabilization using Iron Powder Department of Civil Engineering, RGUKT, AP, India, July- August, 2015ISSN 2091-2730 5. Lindh, E and Eriksson, L. (1990) Sand reinforced with fibres : a field experiment Proc. Of Int. Conf. On Reinforced soil Conf., Performance of Reinforced soil structure- Glasgow (U K), PP. 471-474. 6. Maher, M. H and Gray, D. H. (1990 ) Static response of sand reinforced with randomly distributed fibres Journal of Geotechnical Engineering, ASCE, Vol. 116, pp. 1661-1677. 7. Maher, M.H. and Ho, Y.C.(1994), Mechanical properties of kaolinite/fibre soil composite, Journal of Geotechnical Engineering, ASCE, Vol.120, pp. 1381-1393. 8. Meshida E.A. et al, Effects of Steel Mill Dust on the Strength Characteristics of Black Cotton Clay Soils 5, May-2013 2242 ISSN 2229-5518 9. Setty K.R.N.S. and Rao S.V.G. (1987) Characterisation of fibre reinforced lateritic soil, Proc. Indian Geotechnical Conference, Vol. 1, pp.329-333. 10. Waldron, L. J (1977), The Shear Resistance of Root-Permeated Homogeneous and Stratified Soil, J. Soil Science Soc.Amer. 41,843-849. @IJMTER-2016, All rights Reserved 580