Measuring and modeling the shrinkage characteristics of plastic clays

Clayey soils are generally used as liner material in landfill to prevent ground water pollution. The swelling and shrinkage soils are affected the change in the water content. Significant shrinkage caused by loss of pore water in clays may cause enormous damage to liner systems. This study presents...

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Main Author: Nurulain , Mohamed Hatta
Format: Undergraduates Project Papers
Language:English
Published: 2012
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/7894/1/NURULAIN_BINTI_MOHAMED_HATTA.PDF
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author Nurulain , Mohamed Hatta
author_facet Nurulain , Mohamed Hatta
author_sort Nurulain , Mohamed Hatta
collection UMP
description Clayey soils are generally used as liner material in landfill to prevent ground water pollution. The swelling and shrinkage soils are affected the change in the water content. Significant shrinkage caused by loss of pore water in clays may cause enormous damage to liner systems. This study presents the shrinkage behaviour of KB soil and MX80 bentonite from saturated condition under zero applied stress. Duplicate specimens were prepared at different water contents and the volumes of the soils were experimentally measured using wax method. The shrinkage characteristic curves (SSCC) were then established. In addition, continuous SSCC were also established using Kea model and compared with the experimental SSCC. The SSCC enabled the determination of shrinkage limits and the air entry value (AEV). Furthermore, the void ratios at consistency limits were identified. The void ratios obtained for KB soil in term of liquid limit (eLjj, plastic limit (epL), shrinkage limit (esL); and at air entry (eAEV) are 1.16, 0.88, 0.59 and 0.94 respectively. Meanwhile, the void ratios (e) obtained for MX80 bentonite in term of liquid limit (eLL), plastic limit (epL), shrinkage limit (esL); and at air entry (eAEV) are 12.24, 1.76, 0.34 and 0.40, respectively. Kea model can be used to establish a continuous shrinkage path of soil having two shrinkage phases with some limitations. Furthermore, it was noted that, the fitting parameters (i.e. the slope parameter depending on the air entry value (8) and slope of the saturation line found to be different for different soil of different physical properties and different mineral compositions.((P)) were
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spelling UMPir78942021-06-11T07:27:19Z http://umpir.ump.edu.my/id/eprint/7894/ Measuring and modeling the shrinkage characteristics of plastic clays Nurulain , Mohamed Hatta TA Engineering (General). Civil engineering (General) Clayey soils are generally used as liner material in landfill to prevent ground water pollution. The swelling and shrinkage soils are affected the change in the water content. Significant shrinkage caused by loss of pore water in clays may cause enormous damage to liner systems. This study presents the shrinkage behaviour of KB soil and MX80 bentonite from saturated condition under zero applied stress. Duplicate specimens were prepared at different water contents and the volumes of the soils were experimentally measured using wax method. The shrinkage characteristic curves (SSCC) were then established. In addition, continuous SSCC were also established using Kea model and compared with the experimental SSCC. The SSCC enabled the determination of shrinkage limits and the air entry value (AEV). Furthermore, the void ratios at consistency limits were identified. The void ratios obtained for KB soil in term of liquid limit (eLjj, plastic limit (epL), shrinkage limit (esL); and at air entry (eAEV) are 1.16, 0.88, 0.59 and 0.94 respectively. Meanwhile, the void ratios (e) obtained for MX80 bentonite in term of liquid limit (eLL), plastic limit (epL), shrinkage limit (esL); and at air entry (eAEV) are 12.24, 1.76, 0.34 and 0.40, respectively. Kea model can be used to establish a continuous shrinkage path of soil having two shrinkage phases with some limitations. Furthermore, it was noted that, the fitting parameters (i.e. the slope parameter depending on the air entry value (8) and slope of the saturation line found to be different for different soil of different physical properties and different mineral compositions.((P)) were 2012-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7894/1/NURULAIN_BINTI_MOHAMED_HATTA.PDF Nurulain , Mohamed Hatta (2012) Measuring and modeling the shrinkage characteristics of plastic clays. Faculty of Civil Engineering and Earth Resources , Universiti Malaysia Pahang .
spellingShingle TA Engineering (General). Civil engineering (General)
Nurulain , Mohamed Hatta
Measuring and modeling the shrinkage characteristics of plastic clays
title Measuring and modeling the shrinkage characteristics of plastic clays
title_full Measuring and modeling the shrinkage characteristics of plastic clays
title_fullStr Measuring and modeling the shrinkage characteristics of plastic clays
title_full_unstemmed Measuring and modeling the shrinkage characteristics of plastic clays
title_short Measuring and modeling the shrinkage characteristics of plastic clays
title_sort measuring and modeling the shrinkage characteristics of plastic clays
topic TA Engineering (General). Civil engineering (General)
url http://umpir.ump.edu.my/id/eprint/7894/1/NURULAIN_BINTI_MOHAMED_HATTA.PDF
work_keys_str_mv AT nurulainmohamedhatta measuringandmodelingtheshrinkagecharacteristicsofplasticclays