Effect of acid rain on geotechnical properties of residual soils

In this study, the effect of acid rain on the physico-chemical and microstructural properties of two different residual soils was investigated. In order to reproduce the process of soil-acid rain-chemical interaction, an infiltration setup was fabricated. The samples were then infiltrated by differe...

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Main Authors: Bakhshipour, Zeinab, Asadi , Afshin, Kim Huat, Bujang, Sridharan, A., Kawasaki, Satoru
Format: Article
Language:English
Published: Elsevier 2016
Online Access:http://psasir.upm.edu.my/id/eprint/55588/
http://psasir.upm.edu.my/id/eprint/55588/1/Effect%20of%20acid%20rain%20on%20geotechnical%20properties%20of%20residual%20soils.pdf
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author Bakhshipour, Zeinab
Asadi , Afshin
Kim Huat, Bujang
Sridharan, A.
Kawasaki, Satoru
author_facet Bakhshipour, Zeinab
Asadi , Afshin
Kim Huat, Bujang
Sridharan, A.
Kawasaki, Satoru
author_sort Bakhshipour, Zeinab
building UPM Institutional Repository
collection Online Access
description In this study, the effect of acid rain on the physico-chemical and microstructural properties of two different residual soils was investigated. In order to reproduce the process of soil-acid rain-chemical interaction, an infiltration setup was fabricated. The samples were then infiltrated by different pH levels of acid rain, and for different fluxes of acid rain equivalent to the precipitation, for 1–20 years. The compressive strength, consistency limit, compaction characteristics, and coefficient of permeability were evaluated, to investigate the mechanical changes of the soils after being exposed to acid rain. In addition, zeta potential, atomic adsorption spectroscopy (AAS), scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDX) were carried out to identify the underlying controlling mechanisms. The results showed that low pH and high fluxes of acid rain led to a reduction in soil strength and maximum dry density as well as an increase in the coefficient of permeability, liquid limit, and optimum moisture content of the soil. The SEM, EDX, and atomic absorption analysis of the soils confirmed the reduction in the concentration of elements, and the loose structure for both soils due to the effects of acid rain.
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institution Universiti Putra Malaysia
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language English
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publishDate 2016
publisher Elsevier
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spelling upm-555882017-08-14T03:48:55Z http://psasir.upm.edu.my/id/eprint/55588/ Effect of acid rain on geotechnical properties of residual soils Bakhshipour, Zeinab Asadi , Afshin Kim Huat, Bujang Sridharan, A. Kawasaki, Satoru In this study, the effect of acid rain on the physico-chemical and microstructural properties of two different residual soils was investigated. In order to reproduce the process of soil-acid rain-chemical interaction, an infiltration setup was fabricated. The samples were then infiltrated by different pH levels of acid rain, and for different fluxes of acid rain equivalent to the precipitation, for 1–20 years. The compressive strength, consistency limit, compaction characteristics, and coefficient of permeability were evaluated, to investigate the mechanical changes of the soils after being exposed to acid rain. In addition, zeta potential, atomic adsorption spectroscopy (AAS), scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDX) were carried out to identify the underlying controlling mechanisms. The results showed that low pH and high fluxes of acid rain led to a reduction in soil strength and maximum dry density as well as an increase in the coefficient of permeability, liquid limit, and optimum moisture content of the soil. The SEM, EDX, and atomic absorption analysis of the soils confirmed the reduction in the concentration of elements, and the loose structure for both soils due to the effects of acid rain. Elsevier 2016-12 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55588/1/Effect%20of%20acid%20rain%20on%20geotechnical%20properties%20of%20residual%20soils.pdf Bakhshipour, Zeinab and Asadi , Afshin and Kim Huat, Bujang and Sridharan, A. and Kawasaki, Satoru (2016) Effect of acid rain on geotechnical properties of residual soils. Soils and Foundations, 56 (6). pp. 1008-1020. ISSN 0038-0806 http://www.sciencedirect.com/science/article/pii/S0038080616301238 doi.org/10.1016/j.sandf.2016.11.006
spellingShingle Bakhshipour, Zeinab
Asadi , Afshin
Kim Huat, Bujang
Sridharan, A.
Kawasaki, Satoru
Effect of acid rain on geotechnical properties of residual soils
title Effect of acid rain on geotechnical properties of residual soils
title_full Effect of acid rain on geotechnical properties of residual soils
title_fullStr Effect of acid rain on geotechnical properties of residual soils
title_full_unstemmed Effect of acid rain on geotechnical properties of residual soils
title_short Effect of acid rain on geotechnical properties of residual soils
title_sort effect of acid rain on geotechnical properties of residual soils
url http://psasir.upm.edu.my/id/eprint/55588/
http://psasir.upm.edu.my/id/eprint/55588/
http://psasir.upm.edu.my/id/eprint/55588/
http://psasir.upm.edu.my/id/eprint/55588/1/Effect%20of%20acid%20rain%20on%20geotechnical%20properties%20of%20residual%20soils.pdf