Experimental Study on Expansive Clayey Sand Mixtures

Shammat H., Osman M.A.

Abstract


Clayey Sand (SC) soils are found in different areas in Sudan. Although these soils are classified as clayey sand by the Unified Soil Classification System (USCS), still soils had high values of L.L & P.I and noticeable variations of volume change as their moisture content changes. This has serious effects on the integrity of engineering structures. Index tests were performed for eleven soil specimens to study the expansive behaviour of (SC) soils. Package SPSSWIN computer program was used for the regression analysis of laboratory tests data. The test results were analyzed and presented. This paper concluded that when increasing the sand fraction from 7% to 10% low volume change characteristics and high strength properties were noticed.

Keywords


Clayey sand (SC) soil; bentonite content; sand content; swell potential; soil-sand mixtures; sand-bentonite mixtures.

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References


Basma A.A., Al-Homoud A.S. and Hussein A. )0995(, “Laboratory assessment of swelling pressure of expansive soils”, Department of Civil Engineering, Jordan University of Science and Technology, Applied Clay Science 9 (1995), pp. 355–368. [2] Monkul, M.M., Ozden, G. )2115(, “Effect of intergranular void ratio on one-dimensional compression behavior”, Proceedings of International Conference on Problematic Soils, International Society of Soil Mechanics and Geotechnical Engineering, Famagusta, Turkish Republic of Northern Cyprus, 3, pp. 1203–1209. [3] United States (US) Army - Engineering school )0992(, “Military soils engineering”, Field Manual FM 5-410. [4] Hardin, B.O. )0987(, “0-D Strain in Normally Consolidated Cohesionless Soils”, Journal of Geotechnical Engineering, ASCE. Vol. 113, No. 12. pg 1449 – 1467. [5] Pestana, J.M. and Whittle, A.J. (1995), “Compression Model for Cohessionless Soils” Géotechnique, Vol. 45 (4), pp. 611-631. [6] Yamamuro, J.A., Bopp, P.A., Lade, P.V. )0996(, “One dimensional compression of sands at high pressures”, Journal of Geotechnical Engineering, ASCE, Vol. 122 (2), pp. 147–154. [7] Chuhan, F.A., Kjeldstad, A., Bjorlykke, K., Hoeg, K. (2003(, “Experimental compression of loose sands: relevance to porosity reduction during burial in sedimentary basins”, Canadian Geotechnical Journal 40, 995–1011. [8] Skempton, A.W. )0985(, “Residual strength of clays in landslides, folded strata and the laboratory”, Geotechnique Vol. 35 (1), 3–18. [9] Georgiannou, V.N., Burland, J.B., Hight, D.W. )0991(, “The undrained behaviour of clayey sands in triaxial compression and extension”, Geotechnique, Vol. 41 )3(, pp. 431–449. [10] Sorochan, E.A. )0990(, “Construction of Buildings on Expansive Soils”, Publisher: Taylor and Francis. [11] BS 0377 )0991(, “Soils for civil engineering purposes: Part 2: Classification tests”. [12] Kraus, J.F., Benson, C.H., Erickson, A.E., and Chamberlain, E.J. )0997(, “Freeze-Thaw Cycling and Hydraulic Conductivity of Bentonite Barriers”, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 123 (3), pp. 229-238. [13] Julio Esteban )2112(, “Suction and volume changes of compacted sand-bentonite mixtures”, thesis submitted for the degree of Doctor of philosophy (Ph.D) in Faculty of engineering, Imperial College of Science and Medicine, London University. [14] Mollins, L.H., Stewart, D.I. and Cousens, T.W. )0996(, “Predicting the properties of bentonite-sand mixtures”, Clay Minerals. Vol. 31, pp. 243-252. [15] Studds, P.G., Stewart, D.I. and Cousens, T.W. )0998(, “The effects of salt solutions on the properties of bentonite-sand mixtures”, Clay Minerals, Vol. 33, pp. 650-660. [16] Skempton, A.W. )0953(, “The colloidal "activity" of clays”, Proceedings the 3rd International conference on Soil Mechanics and Foundation Engineering, Zurich, Vol. 1, pp 57-61. [17] Chen, F.H. )0975(, “Foundations on Expansive soils”, American Elsevier publ., New York, pp. 280. [18] Dakshanamurthy, V. and Rahman,V. (1973), “A simple method of identifying an Expansive soil”, Jananese Society of Soil Mech. and Foundation Engineering, Vol. 13, pp. 97-104. [19] Snethen, D. R. )0981(, “Characterization of expansive soils using soil suction data”, Proceeding 4th International Conference on Expansive Soils, American Society for Civil Engineers (ASCE), Vol. 1, pp. 54-75. [20] Aronld, M. )0984(, “The Genesis, Mineralogy and Identification of Expansive soils”, Proceeding the 5th International Expansive soil Conference, Adelaide, South Australia, pp. 32-36. [21] Van Der Merwe, D .H. )0964(, “Prediction of heave from the plasticity index and percentage clay fraction of soils”, South African Institute of civil Engineers, Vol. 6, pp. 103-107.

Holtz, W. and Gibbs, J.J (1956), “Engineering properties of Expansive Clays”, Journal of the Soil Mech. and Foundation Div., American Society for Civil Engineers (ASCE), Transactions paper No. 2814, Vol. 121, pp. 641- 663. [23] Seed, H. B., Woodward, R. J., Jr. and Lundgren, R. )0962(, “Prediction of swelling potential for compacted clays”, J. ASCE, Soil Mech. and Foundation Div., Vol. 88, No. SM-3, Part I, pp. 53-87.


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