Effectiveness of Pozzolanic Leaf Ashes and Plastics on Geotechnical Characteristics
Keywords:soil stabilization, shear strength, plastic, leaf ash, geotechnical properties
This study aims to investigate the geotechnical characteristics of three soils by adding waste plastics and a mixture of leaf ashes. The soil stabilizers used in the study are the plastics strips from waste plastic file folders and a mixture of ashes from five naturally occurring pozzolanic leaves in Sri Lanka. The plastics used in this study have a width of 5 mm and aspect ratios of 1, 2, 3, and 4 in the weight percentages 0.5, 1, 2, 4, and 8. The mixture of leaf ashes used is in the weight percentages 2, 4, 6, 8, and 10. The investigated geotechnical characteristics of the soils include the improvement of maximum dry density (MDD), optimum moisture content (OMC), soaked California bearing ratio (CBR), shear strength parameters, plastic index (PI), and Atterberg limits. The results suggest that the optimum improvement in soaked CBR and MDD can be achieved by adding 2% plastics and 6% leaf ash mixture into the soils. Shear strength parameters and PI can also be improved.
O. Ilori, C. E. A. Uko, and I. C. Umoh, “Local Geology, Shear Strength Properties and Bearing Capacity of Coastal Plain Sands in Uyo Metropolis, Akwa-Ibom State, Southeastern Nigeria,” Journal of Engineering Research and Reports, vol. 8, no. 4, pp. 1-23, December 2019.
G. Pachideh, M. Gholhaki, and O. Rezaifar, “Experimental Study on Engineering Properties and Microstructure of Expansive Soils Treated by Lime Containing Silica Nanoparticles under Various Temperatures,” Geotechnical and Geological Engineering, vol. 39, no. 6, pp. 4157-4168, February 2021.
A. G. Norozi, S. Kouravand, and M. Boveiri, “A Review of Using the Waste in Soil Stabilization,” International Journal of Engineering Trends and Technology, vol. 21, no. 1, pp. 33-37, November 2015.
A. K. Choudhary, J. N. Jha, and K. S. Gill, “A Study on CBR Behavior of Waste Plastic Strip Reinforced Soil,” Emirates Journal for Engineering Research, vol. 15, no. 1, pp. 51-57, February 2010.
J. Kalliyath, J. Joy, J. Paul, and A. M. Vadakkel, “Soil Stabilization Using Plastic Fibers,” International Journal of Science Technology and Engineering, vol. 2, no. 12, pp. 487-487, June 2016.
V. Mallikarjuna and T. B. Mani, “Soil Stabilization Using Plastic Waste,” International Journal of Research in Engineering and Technology, vol. 5, no. 5, pp. 391-394, May 2016.
A. Patel, Geotechnical Investigations and Improvement of Ground Conditions, 1st ed., United Kingdom: Woodhead Publishing, 2019.
O. O. Amu and A. A. Adetuberu, “Characteristics of Bamboo Leaf Ash Stabilization on Lateritic Soil in Highway Construction,” International Journal of Engineering and Technology, vol. 2, no. 4, pp. 212-219, 2010.
L. Parker, “A Whopping 91% of Plastic Isn’t Recycled,” https://www.nationalgeographic.com/news/2017/07/plastic-produced-recycling-waste-ocean-trash-debris-environment/, December 20, 2018.
S. W. Thakare and S. K. Sonule, “Performance of Plastic Bottle Reinforced Soil,” International Journal of Engineering Innovations and Research, vol. 2, no. 3, pp. 207-210, May 2013.
P. Bhattarai, A. V. A. B. Kumar, K. Santosh, T. Manikanta, and K. Tejeswini, “Engineering Behavior of Soil Reinforced with Plastic Strips,” International Journal of Civil, Structural, Environmental, and Infrastructure Engineering Research and Development, vol. 3, no. 2, pp. 83-88, June 2013.
M. Neopaney, K. W. Ugyen, S. Tenzin, and K. S. Chamberlin, “Stabilization of Soil by Using Plastic Wastes,” International Journal of Emerging Trends in Engineering and Development, vol. 2, no. 2, pp. 461-466, March 2012.
E. S. Nnochiri and O. O. Aderinlewo, “Geotechnical Properties of Lateritic Soil Stabilized with Banana Leaves Ash,” FUOYE Journal of Engineering and Technology, vol. 1, no. 1, pp. 116-119, September 2016.
O. Elijah, “Comparison between Strength Properties of Lateritic Soils Stabilized with Banana Leaf Ash and Oil Palm Frond Ash,” International Research Journal of Innovations in Engineering and Technology, vol. 3, no. 1, pp. 20-23, January 2019.
H. Xiao, F. Zhang, R. Liu, R. Zhang, Z. Liu, and H. Liu, “Effects of Pozzolanic and Non-Pozzolanic Nanomaterials on Cement-Based Materials,” Construction and Building Materials, vol. 213, pp. 1-9, July 2019.
Standard Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis, ASTM D6913/D6913M, 2017.
Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils, ASTM D4318, 2017.
Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort, ASTM D1557, 2012.
Standard Test Method for Direct Shear Test of Soils under Consolidated Drained Conditions, ASTM D3080, 2004.
Standard Test Method for California Bearing Ratio (CBR) of Laboratory-Compacted Soil, ASTM D1883, 2016.
Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System), ASTM D2487, 2017.
Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete, ASTM C311/C311M, 2018.
F. O. Okafor and U. N. Okonkwo, “Effects of Rice Husk Ash on Some Geotechnical Properties of Lateritic Soil,” Leonardo Electronic Journal of Practices and Technologies, vol. 15, pp. 67-74, July-December 2009.
H. J. A. Hassan, J. Rasul, and M. Samin, “Effects of Plastic Waste Materials on Geotechnical Properties of Clayey Soil,” Transportation Infrastructure Geotechnology, vol. 8, no. 3, pp. 390-413, January 2021.
S. Adhikary and K. Jana, “Potentials of Rice-Husk Ash as a Soil Stabilizer,” International Journal of Latest Research in Engineering and Technology, vol. 2, no. 2, pp. 40-48, February 2016.
A. K. Choudhary, J. N. Jha, K. S. Gill, and S. K. Shukla, “Utilization of Fly Ash and Waste Recycled Product Reinforced with Plastic Wastes as Construction Materials in Flexible Pavement,” Geo-Congress, pp. 3890-3902, February 2014.
C. C. Ikeagwuani, D. C. Nwonu, C. Eze, and I. Onuoha, “Investigation of Shear Strength Parameters and Effect of Different Compactive Effort on Lateritic Soil Stabilized with Coconut Husk Ash and Lime,” Nigerian Journal of Technology, vol. 36, no. 4, pp. 1016-1021, January 2018.
A. Kumar and H. Vageesh, “Effect of Discarded Plastic Waste as Stabilizer on Engineering Properties of Cohesive Soil,” International Journal of Engineering Technology Science and Research, vol. 4, no. 12, pp. 779-786, December 2017.
B. D. Nath, G. Sarkar, S. Siddiqua, M. Rokunuzzaman, and M. Islam, “Geotechnical Properties of Wood Ash-Based Composite Fine-Grained Soil,” Advances in Civil Engineering, vol. 2018, 9456019, 2018.
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