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Improvement of Soft Ground Using Nano-Chemical Stabilization
https://orcid.org/http://orcid.org/0000-0001-9639-1218
https://orcid.org/http://orcid.org/0000-0003-2257-5801
Soft clay soils spread over larger areas of Kerala are very weak to support the overlying structures. The need to stabilize these weak soils arises for the desired strength improvement. A series of unconfined compressive strength (UCS) tests have been performed on untreated and nano-chemical treated clay soil samples to assess the effectiveness of a nano-chemical as a soil stabilizer. Herein, a nanotechnology-based organosilane compound (terrasil) is introduced into the clay in various amounts of 0.03, 0.04, 0.045 and 0.05% of the dry weight of soil taken for stabilization. The study aims to determine the optimum dosage of nano-chemical corresponding to the maximum UCS after 7 and 14 days of curing. The results indicated that the UCS of stabilized soil increased with the increase in nano-chemical dosage. But the increase in strength was high up to a specific dosage, and further, the growth rate decreased. The images obtained from scanning electron microscopy (SEM) support the mechanism behind the strength improvement of nano-chemical-treated clay soils. The chemical interactions between nano-chemical and clay soil make strong bonding and fill the pore spaces. Soft ground with nano-chemical treatment has the advantages of lower cost and better environmental protection. The findings will help improve the strength of weak foundation soils, embankment dykes, and road pavements.
Improvement of Soft Ground Using Nano-Chemical Stabilization
https://orcid.org/http://orcid.org/0000-0001-9639-1218
https://orcid.org/http://orcid.org/0000-0003-2257-5801
Soft clay soils spread over larger areas of Kerala are very weak to support the overlying structures. The need to stabilize these weak soils arises for the desired strength improvement. A series of unconfined compressive strength (UCS) tests have been performed on untreated and nano-chemical treated clay soil samples to assess the effectiveness of a nano-chemical as a soil stabilizer. Herein, a nanotechnology-based organosilane compound (terrasil) is introduced into the clay in various amounts of 0.03, 0.04, 0.045 and 0.05% of the dry weight of soil taken for stabilization. The study aims to determine the optimum dosage of nano-chemical corresponding to the maximum UCS after 7 and 14 days of curing. The results indicated that the UCS of stabilized soil increased with the increase in nano-chemical dosage. But the increase in strength was high up to a specific dosage, and further, the growth rate decreased. The images obtained from scanning electron microscopy (SEM) support the mechanism behind the strength improvement of nano-chemical-treated clay soils. The chemical interactions between nano-chemical and clay soil make strong bonding and fill the pore spaces. Soft ground with nano-chemical treatment has the advantages of lower cost and better environmental protection. The findings will help improve the strength of weak foundation soils, embankment dykes, and road pavements.
Improvement of Soft Ground Using Nano-Chemical Stabilization
https://orcid.org/http://orcid.org/0000-0001-9639-1218
https://orcid.org/http://orcid.org/0000-0003-2257-5801
Soft clay soils spread over larger areas of Kerala are very weak to support the overlying structures. The need to stabilize these weak soils arises for the desired strength improvement. A series of unconfined compressive strength (UCS) tests have been performed on untreated and nano-chemical treated clay soil samples to assess the effectiveness of a nano-chemical as a soil stabilizer. Herein, a nanotechnology-based organosilane compound (terrasil) is introduced into the clay in various amounts of 0.03, 0.04, 0.045 and 0.05% of the dry weight of soil taken for stabilization. The study aims to determine the optimum dosage of nano-chemical corresponding to the maximum UCS after 7 and 14 days of curing. The results indicated that the UCS of stabilized soil increased with the increase in nano-chemical dosage. But the increase in strength was high up to a specific dosage, and further, the growth rate decreased. The images obtained from scanning electron microscopy (SEM) support the mechanism behind the strength improvement of nano-chemical-treated clay soils. The chemical interactions between nano-chemical and clay soil make strong bonding and fill the pore spaces. Soft ground with nano-chemical treatment has the advantages of lower cost and better environmental protection. The findings will help improve the strength of weak foundation soils, embankment dykes, and road pavements.
Improvement of Soft Ground Using Nano-Chemical Stabilization
Lecture Notes in Civil Engineering
Jose, Babu T. (editor) / Sahoo, Dipak Kumar (editor) / Puppala, Anand J. (editor) / Reddy, C. N. V. Satyanarayana (editor) / Abraham, Benny Mathews (editor) / Vaidya, Ravikiran (editor) / Mohan, Regi P. (author) / Rangaswamy, K. (author)
Indian Geotechnical Conference ; 2022 ; Kochi, India
Proceedings of the Indian Geotechnical Conference 2022 Volume 4 ; Chapter: 24 ; 259-268
2024-06-04
10 pages
Article/Chapter (Book)
Electronic Resource
English
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