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Stabilization of Subgrade Soil Using Nano-chemicals and Fly Ash
https://orcid.org/https://orcid.org/0000-0002-7065-6895
https://orcid.org/https://orcid.org/0000-0003-2774-5582
Due to heavy rainfall in some of the areas in India, road remains under water for certain period of time. Excess moisture is an enemy of roads, especially for subgrade. So, it becomes necessary to address in this issue to modify the property of soil and its engineering performances. Stabilization is a technique which invariably changes the physical and chemical properties of soil and ameliorates its capacity to make suitable for supporting any pavement structures. By addition of both nano-materials and fly ash with natural soil, are often affected the soil structure and therefore improve its physical properties like strength, permeability, and durability. In this study, soil is collected near Agartala city in Tripura, India, which is silty sand in nature. Terrasil and zycobond are used as nano-material supplied by Zydex Industries, Vadodara, and their standard protocol is followed to fix the dosages. Fly ash is a waste product collected from thermal power plant and used as a stabilizer. Various laboratory tests have been performed on natural and stabilized soil, and results are discussed. From the results, soil is silty sand and medium plastic in nature. As fly ash is added in soil, MDD value increases and corresponding OMC value decreases. CBR property is also studied with varying percentage of fly ash. Optimum content of fly ash is chosen based on MDD value and 28 days soaked CBR value. UCS test of different curing period and durability tests are also performed taking optimum percentage of fly ash along with nano-chemicals. Using these materials in soil, CBR value increases three times, but this stabilized soil is not durable as the weight loss is more than 14% while testing.
Stabilization of Subgrade Soil Using Nano-chemicals and Fly Ash
https://orcid.org/https://orcid.org/0000-0002-7065-6895
https://orcid.org/https://orcid.org/0000-0003-2774-5582
Due to heavy rainfall in some of the areas in India, road remains under water for certain period of time. Excess moisture is an enemy of roads, especially for subgrade. So, it becomes necessary to address in this issue to modify the property of soil and its engineering performances. Stabilization is a technique which invariably changes the physical and chemical properties of soil and ameliorates its capacity to make suitable for supporting any pavement structures. By addition of both nano-materials and fly ash with natural soil, are often affected the soil structure and therefore improve its physical properties like strength, permeability, and durability. In this study, soil is collected near Agartala city in Tripura, India, which is silty sand in nature. Terrasil and zycobond are used as nano-material supplied by Zydex Industries, Vadodara, and their standard protocol is followed to fix the dosages. Fly ash is a waste product collected from thermal power plant and used as a stabilizer. Various laboratory tests have been performed on natural and stabilized soil, and results are discussed. From the results, soil is silty sand and medium plastic in nature. As fly ash is added in soil, MDD value increases and corresponding OMC value decreases. CBR property is also studied with varying percentage of fly ash. Optimum content of fly ash is chosen based on MDD value and 28 days soaked CBR value. UCS test of different curing period and durability tests are also performed taking optimum percentage of fly ash along with nano-chemicals. Using these materials in soil, CBR value increases three times, but this stabilized soil is not durable as the weight loss is more than 14% while testing.
Stabilization of Subgrade Soil Using Nano-chemicals and Fly Ash
https://orcid.org/https://orcid.org/0000-0002-7065-6895
https://orcid.org/https://orcid.org/0000-0003-2774-5582
Due to heavy rainfall in some of the areas in India, road remains under water for certain period of time. Excess moisture is an enemy of roads, especially for subgrade. So, it becomes necessary to address in this issue to modify the property of soil and its engineering performances. Stabilization is a technique which invariably changes the physical and chemical properties of soil and ameliorates its capacity to make suitable for supporting any pavement structures. By addition of both nano-materials and fly ash with natural soil, are often affected the soil structure and therefore improve its physical properties like strength, permeability, and durability. In this study, soil is collected near Agartala city in Tripura, India, which is silty sand in nature. Terrasil and zycobond are used as nano-material supplied by Zydex Industries, Vadodara, and their standard protocol is followed to fix the dosages. Fly ash is a waste product collected from thermal power plant and used as a stabilizer. Various laboratory tests have been performed on natural and stabilized soil, and results are discussed. From the results, soil is silty sand and medium plastic in nature. As fly ash is added in soil, MDD value increases and corresponding OMC value decreases. CBR property is also studied with varying percentage of fly ash. Optimum content of fly ash is chosen based on MDD value and 28 days soaked CBR value. UCS test of different curing period and durability tests are also performed taking optimum percentage of fly ash along with nano-chemicals. Using these materials in soil, CBR value increases three times, but this stabilized soil is not durable as the weight loss is more than 14% while testing.
Stabilization of Subgrade Soil Using Nano-chemicals and Fly Ash
Lecture Notes in Civil Engineering
Patel, Satyajit (editor) / Solanki, C. H. (editor) / Reddy, Krishna R. (editor) / Shukla, Sanjay Kumar (editor) / Biswas, Tridipa (author) / Sarkar, Dipankar (author)
2021-05-06
10 pages
Article/Chapter (Book)
Electronic Resource
English
Stabilization of Subgrade Soil Using Nano-chemicals and Fly Ash
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