Strength of soft clay reinforced with group crushed polypropylene (PP) columns

The use of granular columns as soil reinforcement technique has proved useful in problems of foundation stability and settlement, as well as improving soft clay for foundation construction. The purpose of this study is to investigate the enhancement of shear strength of soft kaolin clay when it is r...

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Main Author:	Nuraini, Yusuf
Format:	Undergraduates Project Papers
Language:	English English English
Published:	2015
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/11943/ http://umpir.ump.edu.my/id/eprint/11943/ http://umpir.ump.edu.my/id/eprint/11943/1/FKKSA%20-%20NURAINI%20YUSUF%20%289314%29.pdf http://umpir.ump.edu.my/id/eprint/11943/7/FKKSA%20-%20NURAINI%20YUSUF%20-%20CHAP.%201%20%28CD9314%29.pdf http://umpir.ump.edu.my/id/eprint/11943/13/FKKSA%20-%20NURAINI%20YUSUF%20-%20CHAP.%203%20%28CD9314%29.pdf

id	ump-11943
recordtype	eprints
spelling	ump-119432016-03-16T07:43:21Z http://umpir.ump.edu.my/id/eprint/11943/ Strength of soft clay reinforced with group crushed polypropylene (PP) columns Nuraini, Yusuf TA Engineering (General). Civil engineering (General) The use of granular columns as soil reinforcement technique has proved useful in problems of foundation stability and settlement, as well as improving soft clay for foundation construction. The purpose of this study is to investigate the enhancement of shear strength of soft kaolin clay when it is reinforced with group crushed polypropylene (PP) columns. Since PP is a waste material, the cost of soil improvement can be reduced which currently was disposed totally in large quantity into landfill. In order to proceed the study, physical and mechanical properties of materials used that are kaolin (soil sample) and PP (reinforcing columns) must be identify first. Then, consolidated kaolin as soft clay was reinforced with group crushed PP columns, and subsequently tested under Unconfined Compression Test (UCT). A total of 7 batches of kaolin sample including control sample had been tested to identify the shear strength. Each batches involved of four samples to find the average value of maximum stress. The variables used for the columns installation were the column height that are 60 mm, 80 mm and 100 mm, where the column penetrating ratio are 0.6, 0.8 and 1.0 respectively. In addition, different values of columns diameter had been used that are 6 mm and 10 mm for every different height of columns. A total of 28 unconfined compression tests had been conducted on kaolin samples. The kaolin samples had the dimensions of 50 mm in diameter and 100 mm in height. For the group PP reinforcement, shear strength increased about 2.13%, 13.51% and 12.84% for 1.44% area replacement ratio and 6.85%, 14.26% and 13.79% for 4% area replacement ratio at sample penetration ratio 0.6, 0.8, 1.0 respectively. In the other hand, the relationship of the increment of shear strength with the various column penetration ratio show different pattern. The shear strength of both area replacement ratio increases constantly as the column penetrating ratio increased, but after it reach 80mm height of column, the shear strength decrease slightly and this support the ‘critical column length’ idea. It can be concluded that the shear strength parameters were affected by the diameter and the height of the columns and the presence of PP column greatly improve the shear strength. 2015-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11943/1/FKKSA%20-%20NURAINI%20YUSUF%20%289314%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/11943/7/FKKSA%20-%20NURAINI%20YUSUF%20-%20CHAP.%201%20%28CD9314%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/11943/13/FKKSA%20-%20NURAINI%20YUSUF%20-%20CHAP.%203%20%28CD9314%29.pdf Nuraini, Yusuf (2015) Strength of soft clay reinforced with group crushed polypropylene (PP) columns. Faculty of Civil Engineering & Earth Resources, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:92308&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Nuraini, Yusuf Strength of soft clay reinforced with group crushed polypropylene (PP) columns
description	The use of granular columns as soil reinforcement technique has proved useful in problems of foundation stability and settlement, as well as improving soft clay for foundation construction. The purpose of this study is to investigate the enhancement of shear strength of soft kaolin clay when it is reinforced with group crushed polypropylene (PP) columns. Since PP is a waste material, the cost of soil improvement can be reduced which currently was disposed totally in large quantity into landfill. In order to proceed the study, physical and mechanical properties of materials used that are kaolin (soil sample) and PP (reinforcing columns) must be identify first. Then, consolidated kaolin as soft clay was reinforced with group crushed PP columns, and subsequently tested under Unconfined Compression Test (UCT). A total of 7 batches of kaolin sample including control sample had been tested to identify the shear strength. Each batches involved of four samples to find the average value of maximum stress. The variables used for the columns installation were the column height that are 60 mm, 80 mm and 100 mm, where the column penetrating ratio are 0.6, 0.8 and 1.0 respectively. In addition, different values of columns diameter had been used that are 6 mm and 10 mm for every different height of columns. A total of 28 unconfined compression tests had been conducted on kaolin samples. The kaolin samples had the dimensions of 50 mm in diameter and 100 mm in height. For the group PP reinforcement, shear strength increased about 2.13%, 13.51% and 12.84% for 1.44% area replacement ratio and 6.85%, 14.26% and 13.79% for 4% area replacement ratio at sample penetration ratio 0.6, 0.8, 1.0 respectively. In the other hand, the relationship of the increment of shear strength with the various column penetration ratio show different pattern. The shear strength of both area replacement ratio increases constantly as the column penetrating ratio increased, but after it reach 80mm height of column, the shear strength decrease slightly and this support the ‘critical column length’ idea. It can be concluded that the shear strength parameters were affected by the diameter and the height of the columns and the presence of PP column greatly improve the shear strength.
format	Undergraduates Project Papers
author	Nuraini, Yusuf
author_facet	Nuraini, Yusuf
author_sort	Nuraini, Yusuf
title	Strength of soft clay reinforced with group crushed polypropylene (PP) columns
title_short	Strength of soft clay reinforced with group crushed polypropylene (PP) columns
title_full	Strength of soft clay reinforced with group crushed polypropylene (PP) columns
title_fullStr	Strength of soft clay reinforced with group crushed polypropylene (PP) columns
title_full_unstemmed	Strength of soft clay reinforced with group crushed polypropylene (PP) columns
title_sort	strength of soft clay reinforced with group crushed polypropylene (pp) columns
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/11943/ http://umpir.ump.edu.my/id/eprint/11943/ http://umpir.ump.edu.my/id/eprint/11943/1/FKKSA%20-%20NURAINI%20YUSUF%20%289314%29.pdf http://umpir.ump.edu.my/id/eprint/11943/7/FKKSA%20-%20NURAINI%20YUSUF%20-%20CHAP.%201%20%28CD9314%29.pdf http://umpir.ump.edu.my/id/eprint/11943/13/FKKSA%20-%20NURAINI%20YUSUF%20-%20CHAP.%203%20%28CD9314%29.pdf
first_indexed	2023-09-18T22:13:02Z
last_indexed	2023-09-18T22:13:02Z
_version_	1777415154600771584

Strength of soft clay reinforced with group crushed polypropylene (PP) columns

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