Very often, pavements constructed in an economical manner or matching surface elevations of adjacent lanes cannot be designed for the soil conditions of the existing subgrade. Therefore, there is a need to stabilize the soil with an appropriate chemical substance in order to increase its strength to a satisfactory level. For the enhancement of subgrade soil strength characteristics, lime and cement are the most commonly used stabilizers. An experimental program was directed to the evaluation of a clayey soil and its mixtures with different cement contents performing tests on the index properties, the moisture-density relation, the unconfined compressive strength, and linear shrinkage. There is a definite improvement in strength. The time interval used to cure the prepared specimens affected positively both strength and plasticity features of the mixtures. A comparison with mixtures of the same soil with lime has been made, because of the wide use of lime in clay soil stabilization projects.
. J.R. PRUSINSKI, S. BHATTACHARJA: “Effectiveness of Portland cement and lime in stabilizing clay soils”, Transportation Research Record, 1652, pp. 1–13, 1999.
. M. GHARIB, H. SABA, A. BARAZESH: “The effect of additives on clay soil properties using cement and lime”, International Journal of Basic Sciences & Applied Research, vol. 1(3), pp. 66–78, 2012.
. K. PRAKASH, A. SRIDHARAN, S.M. RAO: “Lime addition and curing effects on the index and compaction characteristics of a montmorillonitic soil”, Geotechnical Engineering, vol. 20(1), pp. 39–47, 1989.
. K. HARICHANE, M. GHRICI, S. KENAI: “Effect of curing time on shear strength of cohesive soils stabilized with combination of lime and natural pozzolana”, International Journal of Civil Engineering, vol. 9(2), pp. 90–96, 2011.
. N.C. CONSOLI, G.V. ROTTA, P.D.M. PRIETTO: “Influence of curing under stress on the triaxial response of cemented soil”, Géotechnique, vol. 50(1), pp. 99–105, 2000.
. F.H.M. PORTELINHA, D.C. LIMA, M.P.F. FONTES, C.A.B. CARVALHO: “Modification of a lateritic soil with lime and cement: An economical alternative for flexible pavement layers”, Soils and Rocks, São Paulo, vol. 35(1), pp. 51-63, 2012.
. K. SUGANYA, P.V. SIVAPULLAIAH: “Mechanisms of binder interactions and their role in strengthening Kuttanad clay”, Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, pp. 429–432, 2013.
. I.M. SYED, G.K. FUSELIER, P.E.M. HEWITT: “Innovation in cement stabilization of airfield subgrades”, Proceedings of FAA Worldwide Airport Technology Transfer Conference. Atlantic City, New Jersey, USA, pp. 6–8, 2007.
. S.M. PRASANNA KUMAR: “Cementitious compounds formation using pozzolans and their effect on stabilization of soils of varying engineering properties”, International Conference on Environment Science and Engineering, vol. 8, pp. 212–215, 2011.
. S. HORPIBULSUK, R. RACHAN, A. CHINKULKIJNIWAT, Y. RAKSACHON, A. SUDDEEPONG: “Analysis of strength development in cement-stabilized silty clay from microstructural considerations”, Construction and Building Materials, vol. 24(10), pp. 2011–2021, 2010.
. J. SUEBSUK, S. HORPIBULSUK, M.D. LIU: “Modified Structured Cam Clay: a constitutive model for destructured, naturally structured and artificially structured clays”, Computers and Geotechnics, vol. 37, pp. 956–968, 2010.
. J. SUEBSUK, S. HORPIBULSUK, M.D. LIU: “A critical state model for over-consolidated structured clays”, Computers and Geotechnics, vol. 38, pp. 648–658, 2011.
. S. HORPIBULSUK, A. SUDDEEPONG, A. CHINKULKIJNIWAT, M.D. LIU: Strength and compressibility of lightweight cemented clays. Applied Clay Science, vol. 69, pp. 11–21, 2012.
. P. SOLANKI, M. ZAMAN: Microstructural and mineralogical characterization of clay stabilized using calcium-based stabilizers, Scanning Electron Microscopy, Dr. Viacheslav Kazmiruk (Ed.), 2012.
. A. ATHANASOPOULOU, G. KOLLAROS: “Use of additives to improve the engineering properties of swelling soils in Thrace, Northern Greece”, 5th International Conference on Computational Materials Characterization, WIT Press, pp. 327–338, 2011.
. D.I. BOARDMAN, S. GLENDINNING, C.D.F. ROGERS: “Development of stabilisation and solidification in lime-clay mixes”, Géotechnique, vol. 51(6), pp. 533–543, 2001.