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Effect of Alccofine Addition on the Index and Engineering Properties of Bentonite

Rakesh Kumar Dutta


This paper presents the results of Atterberg’s limit, compaction, free swell index, and unconfined compressive strength test conducted on bentonite stabilized with alccofine. The alccofine content was varied from 0 % to 2 % by dry weight of the bentonite. The specimens for the unconfined compressive strength were prepared at optimum moisture content and maximum dry unit weight obtained from the compaction test and these specimens were cured up to a period of 28 days. The results of this study reveal that the unconfined compressive strength of bentonite increased with the increase in alccofine content as well as with the increase in curing period. Further the free swell index of the bentonite decreased appreciably with the increase in alccofine content in bentonite. The outcome of this study reveals that alccofine can be considered as an additive for the stabilization of the expansive soils.


bentonite-alccofine, compaction, unconfined compressive strength, Free swell index

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Yilmaz, I. and Civelekoglu, B. (2009). Gypsum: an additive for stabilization of swelling clay soils, Applied Clay Science, 44:166- 172.

Nalbanntoglu, Z. (2004). Effectiveness of class C fly ash as an expansive soil stabilizer. Construction and building materials, 18:377-381.

Bhuvaneshwari, S., Robinson, R.G. and Gandhi, S.R. (2005). Stabilization of expansive soils using flyash.” Fly Ash India, 8, 1-10.

Roberts, M. B. (2009). Soil stabilization with flyash and rice husk ash. International Journal of Research and Reviews in Applied Sciences, 1(3), 2076-7366.

Bell, F.G. (1996). Lime stabilization of clay minerals and soils. Engineering Geology, 42, 223-237.

Rao, D. K., Rao, G.V.V. R., and Pranav, P.R.T. (2012). “A laboratory study on the affect of rice husk ash & lime on the properties of marine clay.” International Journal of Engineering and Innovative Technology (IJEIT), 2(1)

Kumar, A., Walia, B. S., Bajaj, A. (2007). Influence of fly ash, lime and polyester fibers on compaction and strength properties of expansive soil. Journal of Materials in Civil Engineering, 19:242- 248.

Sabtat, A. K. (2012). Effect of polypropylene fibre on engineering properties of rice husk ash-lime stabilized soil, EJGE, 17:651-659.

Lauafi, B. and Bahar, B. (2012). Sand: an additive for stabilization of swelling clay soils. International Journal of Geosciences, 3:719- 725.

Venkateswarlu, H., Prasad, A.C.S.V, and Raju, G.V.R.R. (2015). Study on behaviour of expansive soil treated with quarry dust. International Journal of Engineering and Innovative Technology, 4: 193-196.

Puppala ,A. J., Wattanasanticharoen,E. and Punthutaecha,K. (2003). “Experimental evaluations of stabilisation methods for sulphate-rich expansive soils.” Ground Improvement, 7(1), 25– 35.

Kalkan, E. and Akbulut, S. (2004). The positive effects of silica fume on the permeability, swelling pressure and compressive strength of natural clay liners. Engineering Geology, 73, 145–156.

Amu, O. O.,. Fajobi, A.B and Afekhuai,S. O. (2005). Stabilizing potential of cement and flyash mixture on expansive clay soil. Journal of Applied Sciences, 5(9): 1669-1673.

Gupta, C. and Sharma, R. K. (2015). Influence of marble dust, fly ash and beas sand on sub grade characteristics of expansive soil. Journal of Mechanical and Civil Engineering, PP 13-18.

Gandhi, S. K. (2013). Stabilization of expansive soil of surat region using rice husk ash & marble dust. International Journal of Current Engineering and Technology, 2277 – 4106.

Kumar, S., Dutta, R. K. and Mohanty, B. (2014). Potential of bentonite-lime-mix modified with phosphogypsum and reinforced with sisal fibres. Periodica Polytechnica Civil Engineering, 143-154.

Kumar, P. and Devendra, S. (2016). Characterization of cement kiln dust stabilized black cotton soil. International Journal of Research in Engineering and Technology, 104-107.

IS: 2720, Part XL (1977) Determination of free swell index of soils. Indian Standard methods of test for soils. Bureau of Indian Standards, New Delhi, 1–5.

IS: 2720, Part V (1985) Determination of liquid and plastic limit. Indian Standard methods of test for soils. Bureau of Indian Standards, New Delhi, 1–16.

IS: 2720, Part VII (1980) Laboratory determination of water content-dry density relation using light compaction. Indian Standard methods of test for soils. Bureau of Indian Standards, New Delhi, 1–9.

IS: 2720, Part X (1991) Determination of unconfined compressive strength. Indian Standard methods of test for soils. Bureau of Indian Standards, New Delhi, 1–4.



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