Abstract
The consistent surge in the utilization of coal has resulted in its higher production. Coal gangue is a by-product in the coal mining process with a wide range of application. Understanding the geotechnical behavior of coal gangue (CG) and its interaction with sensitive and problematic soils provides viable solutions for its large-scale utilization. Bulk utilization of CG can be attained if it has the potential for subgrade material. In the current study, the effect of CG addition (10%–50% by dry weight of soil) on the California Bearing Ratio (CBR) behavior of expansive black cotton (BC) soil is studied. Further, lime (2%, 4% and 6%) as an additive is considered due to its cementitious properties. CBR tests were conducted on both soaked and unsoaked conditions. The Tangent Modulus(TM) and Secant Modulus (SM) were evaluated from the stress (load)-strain (penetration) curves to understand the stiffness characteristics of the CG-BC soil mixture. Further, attempts were made to estimate resilient modulus (MR) from the observed CBR values using existing correlations. The results from the study showed that soaked CBR value of BC soil increased from 4 to 23 with 40% CG, due to better mobilization of frictional resistance. The CBR values decreased beyond 40% due to a reduction in the cohesive component of BC-CG mixture. In the presence of lime, the BC-CG mixtures yielded better soaked and unsoaked CBR values, with 6L and 40CG outperforming all other combinations. The TM, SM and MR values increased with coal gangue addition, which is proportional to the increase in CBR values.
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References
AASHTO T307: Determining the Resilient Modulus of Soils and Aggregate Materials. American Association of State Highway and Transportation Officials, Washington, DC, USA (2012)
Ashfaq, M., Heeralal, M., Moghal, A.A.B., Murty, V.R.: Carbon Footprint analysis of coal gangue in geotechnical engineering applications. Indian Geotech. J. 50, 646–654 (2020)
Ashfaq, M., Heeralal, M., Moghal, A.A.B.: Effect of coal gangue particle size on its leaching characteristics. ASCE Geotech. Special Publication 319, 107–114 (2020)
Ashfaq, M., Heeralal, M., Moghal, A.A.B.: Characterization studies on coal gangue for sustainable geotechnics. Innovative Infrastructure Solutions 5(1), article no 15 (2020b)
ASTM D1883-16: Standard test methods for California bearing ratio (CBR) of laboratory-compacted soils. ASTM International, West Conshohocken, P (2016)
ASTM D4318-17e1: Standard Test Methods for liquid limit, plastic limit and plasticity index of soils. ASTM International, West Conshohocken, PA (2017)
ASTM D698 12e2: Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort. ASTM International, West Conshohocken, PA (2012)
ASTM D2487-11: Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System), ASTM International, West Conshohocken, PA (2017)
ASTM D4972-19: Standard test method for pH of soil. ASTM International, West Conshohocken, PA (2019)
ASTM D854-14: Standard test methods for specific gravity of soil solids by water pycnometer. ASTM International, West Conshohocken, PA (2014)
Ayres, M.: Development of a Rational Probabilistic Approach for Flexible Pavement Analysis. University of Maryland (Publisher), College Park, MD, USA (1997)
Bell, F.G.: An examination of the use of lime and pulverized fly ash to stabilize clay materials. Bull. Assoc. Eng. Geol. 30(4), 469–479 (1993)
Darikandeh, F.: Expansive soil stabilized by calcium carbide residue–fly ash columns. Proc. Inst. Civil Eng. - Ground Improvement 171(1), 49–58 (2018)
Edil, T.B., Acosta, H.A., Benson, C.H.: Stabilizing soft fine-grained soils with fly ash. J. Mater. Civ. Eng. 18(2), 283–294 (2006)
Green, J., Hall, J.: Nondistructive Vibratory Testing of Airport Pavement. Technical Report S-75–14 (1975). Online source: ark:/67531/metadc304084
Heitor, A., Indraratna, B., Kaliboullah, C.I., Rujikiatkamjorn, C., McIntosh, G.W.: Drained and Undrained Shear behavior of compacted coal wash. J. Geotech. Geoenviron. Eng. 142(5), 04016006, 1–10 (2016)
Heukelom, W., Foster, C.: Dynamic testing of pavements. J. Soil Mech. Found. Division 86(1), 1–28 (1960)
Indraratna, B., Gasson, I., Chowdhury, R.N.: Utilization of compacted coal tailings as a structural fill. Can. Geotech. J. 31, 614–623 (1994)
Indraratna, B., Rujikiatkamjorn, C., Chiaro, G.: Characterization of compacted coal wash as structural fill material. ASCE Geotech. Special Publication 225, 3826–3834 (2012)
Lister, N.W., Powell, D.: Design practices for pavements in the United Kingdom. In: Proceedings of the 6th International Conference on the Structural Design of Asphalt Pavements, Ann Arbor, MI, USA (1987)
Moghal, A.A.B., Chittori, B.C.S., Basha, B.M., Al-Shamrani, M.A.: Target reliability approach to study the effect of fiber reinforcement on UCS behavior of lime treated semiarid soil. J. Mater. Civil Eng. 29(6), 04017014, 1–15 (2017)
Murthy, V.R., Krishna, P.H.: Stabilization of expansive clay bed using calcium chloride solution. Ground Improvement 10(1), 39–46 (2006)
Pandian, N.S., Krishna, K.C., Sridharan, A.: California bearing ratio beahvior of soil/fly ash mixtures. J. Test. Eval. 29(2), 220–226 (2001)
Pandian, N.S., Krishna, K.C.: California Bearing Ratio Beahvior of cement stabilized Fly ash- Soil mixes. J. Test. Eval. 30(6), 492–496 (2002)
Pandian, N.S., Krishna, K.C.: The pozzolanic effect of fly ash on the california bearing ratio behavior of black cotton soil. J. Test. Eval. 31(6), 479–485 (2003)
Petri, T.M., Little, D.N.: Review of stabilization of clays and expansive soils in pavements and lightly loaded structures—history, practice, and future. J. Mater. Civ. Eng. 14(6), 283–294 (2002)
Phanikumar, B.R.: Effect of lime and fly ash on swell, consolidation and shear strength characteristics of expansive clays: a comparative study. Geomech. Geoeng. 4(2), 175–181 (2009)
Puppala, A.J., Wattanasanticharoen, E., Hoyos, L.R.: Ranking of four chemical and mechanical stabilization methods to treat low-volume road subgrades in texas. Transp. Res. Rec. 1819(1), 63–71 (2003)
Senol, A., Edil, T.B., Bin-Shafique, M.S., Acosta, H.A., Benson, C.H.: Soft subgrades’ stabilization by using various fly ashes. Resour. Conserv. Recycl. 46, 365–376 (2006)
Tasalloti, S.M.A., Indraratna, B., Rujikiatkamjorn, C., Chiaro, G., Heitor, A.: A laboratory study on the shear behavior of mixtures of coal wash and steel furnace slag as potential structural fill. Geotech. Testing J. 38(4), 361–372 (2015)
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Ashfaq, M., Moghal, A.A.B. (2021). Influence of Lime and Coal Gangue on the CBR Behavior of Expansive Soil. In: Neves, J., Zhu, B., Rahardjo, P. (eds) Advanced Geotechnical and Structural Engineering in the Design and Performance of Sustainable Civil Infrastructures. GeoChina 2021. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-030-80155-7_7
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