A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Alternative Materials for the Construction of Landfills and Embankments
The dynamic increase in the activity of construction industry and lack of availability of suitable in situ soils has paved the way to the use of different stabilization techniques and alternate materials. In the present study, Terrasil and cement are used as admixtures to soils with percentage fines in the range of 15–40% and liquid limit in the range of 25–40%, to study the changes in the stress–strain behavior, stiffness, cohesion (c), angle of shearing resistance (ϕ), and permeability properties of the soils to suit different applications such as foundation soil, clay liners, impermeable barriers in zoned embankments, etc. The percentage fines and liquid limit (which is indirectly a measure of clay content) of the base soil impacted the improvement in the properties of the alternate or treated soils. With Terrasil as admixture, the permeability property of all the soils decreased, and they became impermeable. More reduction in optimum moisture content (OMC) and increase in maximum dry density values are observed in soil with less liquid limit value. A 5–10° improvement in ϕ values, a slight increase in cohesion and stiffness (modulus of elasticity, E) values are observed in soils with more clay content. With Terrasil and cement as admixtures, both c and ϕ increased considerably for soil with higher liquid limit values, indicating a higher impact of clay content on improving these properties than that of the fines percentage.
Alternative Materials for the Construction of Landfills and Embankments
The dynamic increase in the activity of construction industry and lack of availability of suitable in situ soils has paved the way to the use of different stabilization techniques and alternate materials. In the present study, Terrasil and cement are used as admixtures to soils with percentage fines in the range of 15–40% and liquid limit in the range of 25–40%, to study the changes in the stress–strain behavior, stiffness, cohesion (c), angle of shearing resistance (ϕ), and permeability properties of the soils to suit different applications such as foundation soil, clay liners, impermeable barriers in zoned embankments, etc. The percentage fines and liquid limit (which is indirectly a measure of clay content) of the base soil impacted the improvement in the properties of the alternate or treated soils. With Terrasil as admixture, the permeability property of all the soils decreased, and they became impermeable. More reduction in optimum moisture content (OMC) and increase in maximum dry density values are observed in soil with less liquid limit value. A 5–10° improvement in ϕ values, a slight increase in cohesion and stiffness (modulus of elasticity, E) values are observed in soils with more clay content. With Terrasil and cement as admixtures, both c and ϕ increased considerably for soil with higher liquid limit values, indicating a higher impact of clay content on improving these properties than that of the fines percentage.
Alternative Materials for the Construction of Landfills and Embankments
Lecture Notes in Civil Engineering
Tutumluer, Erol (editor) / Nazarian, Soheil (editor) / Al-Qadi, Imad (editor) / Qamhia, Issam I.A. (editor) / Yeluri, Meghana (author) / Nirmala Peter, E. C. (author) / Allena, Srinivas (author)
2021-08-31
11 pages
Article/Chapter (Book)
Electronic Resource
English
Surface Wave Tests in Landfills and Embankments
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| Engineering Index Backfile | 1944
Research on construction embankments
| Engineering Index Backfile | 1944