Abstract
The paper investigates the compaction and unconfined compressive strength (UCS) of bentonite-rock quarry dust (B-Q) mixtures for assessing the suitability of a cost-effective material for landfill liner. There is a criterion that the UCS of greater than 200 kPa is desirable for liner material for landfill applications to account for the load placed above (Younus and Sreedeep in J Test Eval 40:357–362). The bentonite–sand mixtures are commonly used as a liner material in landfills. As the sand is a scarce material, it is important to find suitable substitutes against the sand. The rock quarry dust is a waste material which can substitute sand to improve the geotechnical properties of soil. In this study, four different B-Q mixtures have been used to determine their compaction and UCS characteristics. The rock quarry dust content varied from 60 to 90%. The UCS values of the mixtures were obtained using the unconfined compression testing machine under two different deformation rates. The results indicated that the maximum dry density (MDD) and UCS value increased significantly when the rock quarry dust content was increased from 60 to 70%. But, the MDD value remained almost constant and the UCS value decreased significantly when the rock quarry dust content was increased from 70 to 90%. The results further revealed that the deformation rate considered has minimum influence on the UCS of the mixtures. Based on the MDD and UCS values obtained, the study recommends an optimum rock quarry dust content of 70% to be added with bentonite to create a cost-effective liner material, especially for landfill applications.
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References
Abdelrahman GE, Shahien MM (2004) Swelling treatment using sand for Tamia swelling soil. In: Fourth international engineering conference, Egypt
Awoleye OA (1991) Time effects on the unconfined compressive strength and sensitivity of a clay. Geotech Test J 20(4):345–351
Casagrande A, Shannon WL (1949) Strength of soil under dynamic loads. Trans Am Soc Civil Eng ASCE
Dixon DA, Gray MN, Thomas AW (1985) A study of the compaction properties of potential clay-sand buffer mixtures for use in nuclear fuel waste disposal. Eng Geol 21:247–255
Goldstein M, Ter-Stepanian (1957) The long term strength on clays. Soil Mech Found Eng 2(4):311–314
Hampton D (1958) Effect of rate of strain on the strength of remoulded soil. Joint Highway Research Project, No. 17, Purdue University, Lafayette, Indiana, USA
Howell JL, Shackeford CD, Amer NH, Stern RT (1997) Compaction of sand processed clay soil mixtures. Geotech Test J20(4):443–458
IS: 2720 (Part 4) (1973) Grain size analysis. Indian standard methods of tests for soils, Bureau of Indian Standards, New Delhi
IS: 2720 (Part 5) (1985) Determination of liquid and plastic limit. Indian standard methods of tests for soils, Bureau of Indian Standards, New Delhi
IS: 2720 (Part 7) (1980) Determination of water content-dry density relation using light compaction. Indian standard methods of tests for soils, Bureau of Indian Standards, New Delhi
IS: 2720 (Part 10) (1991) Determination of unconfined compressive strength. Indian standard methods of tests for soils, Bureau of Indian Standards, New Delhi
Richardson AM, Whitman RV (1964) Effect of strain-rate upon undrained shear resistance of saturated remolded fat clay. Geotechnique 12:310–324
Seed HB, Mitchell JK, Chan CK (1960) The strength of compacted cohesive soil. Research conference on the shear strength of cohesive soils, Boulder, Colombia, USA
Sridharan A, Soosan TG, Jose BT, Abraham BM (2006) Shear strength studies on soil-quarry dust mixtures. Geotech Geol Eng 24:1163–1179
Younus MM, Sreedeep S (2012) Evaluation of bentonite-fly ash mix for its application in landfill liners. J Test Eval 40(3):357–362
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Das, H., Kalita, T., Chetia, M. (2020). Compaction and Strength Characteristics of Bentonite Rock-Quarry Dust Mixtures. In: Prashant, A., Sachan, A., Desai, C. (eds) Advances in Computer Methods and Geomechanics . Lecture Notes in Civil Engineering, vol 56. Springer, Singapore. https://doi.org/10.1007/978-981-15-0890-5_11
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DOI: https://doi.org/10.1007/978-981-15-0890-5_11
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