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Strength of soft clay reinforced with encapsulated bottom ASH columns

The uncontrollable usage of non-renewable natural resources and production of waste gives severe impact on the earth. The uncontrollable usage of bottom ash (waste material) can cause pollution to the environment. The vert ical granular columns has the properties to improve the bearing capacity, red...

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Main Author: Wan Nursyafiqah, Wan Jusoh
Format: Thesis
Language:English
Published: 2019
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/31071/1/Strength%20of%20soft%20clay%20reinforced%20with%20encapsulated%20bottom.pdf
http://umpir.ump.edu.my/id/eprint/31071/
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spelling my.ump.umpir.310712021-04-07T02:48:47Z http://umpir.ump.edu.my/id/eprint/31071/ Strength of soft clay reinforced with encapsulated bottom ASH columns Wan Nursyafiqah, Wan Jusoh TA Engineering (General). Civil engineering (General) The uncontrollable usage of non-renewable natural resources and production of waste gives severe impact on the earth. The uncontrollable usage of bottom ash (waste material) can cause pollution to the environment. The vert ical granular columns has the properties to improve the bearing capacity, reduce the settlement, and accelerate the dissipation of excess pore water pressure of the weak soil. The aim of this research is to investigate the role of single and group encapsulated bottom ash columns in improving the shear strength of the soft reconstituted kaolin clay by using the laboratory scale model. The shear strength characteristic can be obtained by determining the effect of area replacement ratio, height penetration rat io, and volume replacement ratio on single and group of encapsulated bottom ash columns. The reinforced kaolin samples were tested under Unconfined Compression Test (UCT) and Unconsolidated Undrained Triaxial Test (UU). The specimen used were 50 mm in diameter and 100 mm in height. Using the encapsulated bottom ash column reinforcement of 0.6, 0.8, and 1.0 height penetrating ratio with 10 and 16 mm diameters columns while the specimen without any reinforcement was referred as the controlled samples. The hig hest improvement of shear strength of the single encapsulated bottom ash column on area replacement ratio of 4.00 % at 10 mm diameter columns is at 0.8 height penetration ratio with 77.00% while for area replacement ratio of 10.24% at 16 mm diameter columns is also at 0.8 height penetration ratio with 71.48%. Meanwhile, the highest improvement of shear strength of the group encapsulated bottom ash column on area replacement ratio of 12.00 % at 10 mm diameter columns is at 0.8 height penetration ratio with 75.63% while for area replacement ratio of 30.72% at 16 mm diameter columns is also at 0.8 height penetration ratio with 56.41%. The maximum improvement of shear strength was at 0.8 height penetrating ratio for both single and group encapsulated bottom ash columns. UU testing showed the significant improvement on cohesion which was recorded to be from 4.31% to 89.21%, and the improvement of friction angle, φ was from 4.17% to 27.92%. The improvement of deviator stress versus axial strain at failure of 70 kPa, 140 kPa, and 280 kPa for cell pressure were recorded to be at between 12.55%–51.80%. In conclusion, the installation of single and group encapsulated bottom ash columns can improve the shear strength and the compressibility of the soft reconstituted kaol in clay. 2019-04 Thesis NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/31071/1/Strength%20of%20soft%20clay%20reinforced%20with%20encapsulated%20bottom.pdf Wan Nursyafiqah, Wan Jusoh (2019) Strength of soft clay reinforced with encapsulated bottom ASH columns. Masters thesis, Universiti Malaysia Pahang.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Wan Nursyafiqah, Wan Jusoh
Strength of soft clay reinforced with encapsulated bottom ASH columns
description The uncontrollable usage of non-renewable natural resources and production of waste gives severe impact on the earth. The uncontrollable usage of bottom ash (waste material) can cause pollution to the environment. The vert ical granular columns has the properties to improve the bearing capacity, reduce the settlement, and accelerate the dissipation of excess pore water pressure of the weak soil. The aim of this research is to investigate the role of single and group encapsulated bottom ash columns in improving the shear strength of the soft reconstituted kaolin clay by using the laboratory scale model. The shear strength characteristic can be obtained by determining the effect of area replacement ratio, height penetration rat io, and volume replacement ratio on single and group of encapsulated bottom ash columns. The reinforced kaolin samples were tested under Unconfined Compression Test (UCT) and Unconsolidated Undrained Triaxial Test (UU). The specimen used were 50 mm in diameter and 100 mm in height. Using the encapsulated bottom ash column reinforcement of 0.6, 0.8, and 1.0 height penetrating ratio with 10 and 16 mm diameters columns while the specimen without any reinforcement was referred as the controlled samples. The hig hest improvement of shear strength of the single encapsulated bottom ash column on area replacement ratio of 4.00 % at 10 mm diameter columns is at 0.8 height penetration ratio with 77.00% while for area replacement ratio of 10.24% at 16 mm diameter columns is also at 0.8 height penetration ratio with 71.48%. Meanwhile, the highest improvement of shear strength of the group encapsulated bottom ash column on area replacement ratio of 12.00 % at 10 mm diameter columns is at 0.8 height penetration ratio with 75.63% while for area replacement ratio of 30.72% at 16 mm diameter columns is also at 0.8 height penetration ratio with 56.41%. The maximum improvement of shear strength was at 0.8 height penetrating ratio for both single and group encapsulated bottom ash columns. UU testing showed the significant improvement on cohesion which was recorded to be from 4.31% to 89.21%, and the improvement of friction angle, φ was from 4.17% to 27.92%. The improvement of deviator stress versus axial strain at failure of 70 kPa, 140 kPa, and 280 kPa for cell pressure were recorded to be at between 12.55%–51.80%. In conclusion, the installation of single and group encapsulated bottom ash columns can improve the shear strength and the compressibility of the soft reconstituted kaol in clay.
format Thesis
author Wan Nursyafiqah, Wan Jusoh
author_facet Wan Nursyafiqah, Wan Jusoh
author_sort Wan Nursyafiqah, Wan Jusoh
title Strength of soft clay reinforced with encapsulated bottom ASH columns
title_short Strength of soft clay reinforced with encapsulated bottom ASH columns
title_full Strength of soft clay reinforced with encapsulated bottom ASH columns
title_fullStr Strength of soft clay reinforced with encapsulated bottom ASH columns
title_full_unstemmed Strength of soft clay reinforced with encapsulated bottom ASH columns
title_sort strength of soft clay reinforced with encapsulated bottom ash columns
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/31071/1/Strength%20of%20soft%20clay%20reinforced%20with%20encapsulated%20bottom.pdf
http://umpir.ump.edu.my/id/eprint/31071/
_version_ 1696976428866732032
score 13.211869

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