Ankit Kumar Yadav*
Anil Kumar
S.K. Madan
- M.Tech Student Civil Engineering Department, National Institute of Technology, Kurukshetra, Haryana India
- Assistant Professor Civil Engineering Department, National Institute of Technology Calicut, Kerala India
- Professor Civil Engineering, Department National Institute of Technology Kurukshetra, Haryana India
Abstract
Expansive soils are troublesome and prone to ground movements, which can cause substantial damage to underlying buildings as well as a loss in bearing capacity. Moisture fluctuation activates the expansive character of soils, causing it to swell and shrink. This has long been known in geotechnical engineering. To treat expansive soils, a variety of stabilizing additives such as lime, cement, and fly ash have been employed. In recent years the use of bio-enzymes as a soil stabilizing agent has shown a great potential in soil stabilization. The strength and endurance of enzymatic stabilization of expanding soils in road pavements are investigated in this work. Several tests were carried out to determine the strength and durability of stabilized soil. The test results indicated that Black cotton soil attained a maximum dry density when mixed with 15% FA. The density attained satisfied for the construction of embankments of 3m and 5m height (MoRTH and MoRD), similarly it can be used as subgrade in the construction (>16.5kN/m3) of rural roads as per MoRD specifications. Also, the value of CBR increased to 25% when mixed with 15% FA. Similarly, when BC soil was mixed with 0.0025% Roadezyme and 15% Fly ash the MDD was increased to 16.87kN/m3 with a concluding remark as it is effective in soil stabilization. Results also indicated that unconfined compressive strength of BC soil on addition with Roadezyme increased to 53% for 7days and 35% for 28days curing period. The use of an enzyme-based stabilizer significantly enhanced the strength of BC soils, demonstrating its capacity to preserve material stiffness despite moisture fluctuations.
Keywords: Black cotton soil, fly ash, UCS, CBR, roadezyme
[This article belongs to International Journal of Environmental Planning and Development Architecture(ijepda)]
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References
1. Ikeagwuani C.C., I.N. Obeta, J.C. Agunwamba. (2019). “Stabilization of black cotton soil subgrade using sawdust ash and lime”. Elsevier B.V. on behalf of The Japanese Geotechnical Society. Soils and Foundations 59, 162–175.
2. Zumrawi. Magdi M. E. (2013). “Pavement Design for Roads on Expansive Clay Subgrades”. University of khartoum engineering journal (ukej), ukej Vol. 3 Issue 1, pp.52-58.
3. Rajesh Prasad Shukla, Niraj Singh Parihar, Pravar Yadav, Nitesh Mankotia. (2015). “Problem sand Treatment of Black Cotton Soil”. Indian Geotechnical Conference held on 17th– 19th December 2015, pune, Maharashtra, India
4. Habiba Afrin. (2017). “A Review on Different Types Soil Stabilization Techniques”. International Journal of Transportation Engineering and Technology. Vol. 3, No. 2, pp. 19-24. Doi: 10.11648/j.ijtet.20170302.12.
5. Pandian N. S. (2004). “Fly ash characterization with reference to geotechnical applications”, J. Indian Inst. Sci., Nov.–Dec. 2004, 84, 189–216.
6. Wardhono A. (2018). “Comparison Study of Class F and Class C Fly Ashes as Cement Replacement Material on Strength Development of Non-Cement Mortar”, The 2nd Annual Applied Science and Engineering Conference (AASEC 2017) IOP Publishing. Doi:10.1088/1757- 899X/288/1/012019.
7. Santosh Dhakar and Jain S K. (2013). “Stabilization of Soil: A Review”, International Journal of Science and Research (IJSR) ISSN (Online): 2319-7064. Http://dx.doi.org/10.21275 /v5i6.NOV164184.
8. Ivanov Volodymyr and Jian Chu. (2008). “Applications of Microorganisms to Geotechnical Engineering for Biologging and Bio Cementation of soil in situ”. Rev Environ Sci Biotechnol (2008) 7:139–153, DOI 10.1007/s11157-007-9126-3.
9. Pala Gireesh Kumar, Nagubandi Madhunika, Yakkala Sindhura, Saladi Dwarakamai, Addanki Praneetha, Talapanti Harika Sravani and Puchakayala Sridevi (2020). An Experimental Investigation on Soil Stabilization using Terrazyme. IOP Conf. Series: Materials Science and Engineering 1006 (2020) 012023 IOP Publishing doi:10.1088/1757-899X/1006/1/012023
10. Raul Velasquez, Mihai O. Marasteanu, Ray Hozalski and Tim Clyne. (2005). “Preliminary laboratory investigation of enzyme solutions as a soil stabilizer”. Minnesota Department of Transportation Research Services Section, MS 330 395 John Ireland Boulevard St. Paul, MN
55155.
11. Teltayev B. B., G. G. Izmailova and M. Zherebitskiy (2021). “Complex stabilization of soils and base course materials during construction and repair of the highways”, Series of Geology and Technical Sciences. 2224-5278, https://doi.org/10.32014/2021.2518-170X.50.
12. IS: 2720-Part 3 “Methods of test for soils: Specific gravity”. Published by Bureau of Indian standard, New Delhi, India.ASTM D 2974 (2014) Methods of test for soils: Loss of ignition” Published by American Society for Testing and Materials.
13. IS 2720-Part 4 “Methods of test for soils: Grain size analysis”. Published by Bureau of Indian standard, New Delhi, India.
14. IS 2720-Part 5 “Methods of test for soils: Determination of Liquid and Plastic Limit”. Published by Bureau of Indian standard, New Delhi, India.
15. IS: 2720-Part 40 “Methods of test for soils: Free swell index”. Published by Bureau of Indian standard, New Delhi, India.
16. IS 2720-Part 8 “Methods of test for soils: Determination of water content- dry density relation using modified proctor test”. Published by Bureau of Indian standard, New Delhi, India.
17. Udayashankar D. Hakari and S.C.Puranik.(2012). “Stabilization of Black Cotton Soils Using Fly Ash”, Hubballi- Dharwad Municipal Corporation Area. Global Journal of research in engineering Civil and Structural engineering, Volume 12 Issue 2 Version 1.0 February 2012, Global Journals Inc. (USA) ISSN: 2249-4596.
18. Kushwaha a S.S, D. Kishan b, and N. Dindorkarc (2018). “Stabilization of Expansive Soil Using Eko Soil Enzyme for Highway Embankment Materials”, Today: Proceedings 5 (2018) 19667–19679.
19. IS 2720-Part 16 “Methods of test for soils: Laboratory determination of CBR”. Published by Bureau of Indian standard, New Delhi, India.
20. IS 2720-Part 10 “Methods of test for soils: Determination of unconfined Compressive Strength”. Published by Bureau of Indian standard, New Delhi, India.
21. MoRTH, 2013. Specifications for road and bridge works. New Delhi: Ministry of Road, Transport and Highways (MORTH).
22. MoRD, Specification for rural development, New Delhi: Ministry of Rural Development.
| Volume | 01 |
| Issue | 01 |
| Received | January 7, 2023 |
| Accepted | February 4, 2023 |
| Published | May 25, 2023 |