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Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application

Settlement is a common geotechnical problem occurs in soft soils. The replacement method is the easiest way to improve this problematic soil. This technique is carried out by removing the unwanted part of the soil and replacing it with a more suitable material or soil. This study focuses on using Li...

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Main Authors: Azhani, Zukri, Ramli, Nazir, Dayang Zulaika, Abang Hasbollah, Amir Hamzah, Mustapha
Format: Article
Language:English
English
Published: Elsevier Ltd 2023
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/40786/1/Lightweight%20Expanded%20Clay%20Aggregate%20%28LECA%29%20as%20replacement.pdf
http://umpir.ump.edu.my/id/eprint/40786/2/Lightweight%20Expanded%20Clay%20Aggregate%20%28LECA%29%20as%20replacement%20materials%20for%20geotechnical%20application_ABS.pdf
http://umpir.ump.edu.my/id/eprint/40786/
https://doi.org/10.1016/j.pce.2023.103366
https://doi.org/10.1016/j.pce.2023.103366
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spelling my.ump.umpir.407862024-05-28T07:59:33Z http://umpir.ump.edu.my/id/eprint/40786/ Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application Azhani, Zukri Ramli, Nazir Dayang Zulaika, Abang Hasbollah Amir Hamzah, Mustapha T Technology (General) TA Engineering (General). Civil engineering (General) Settlement is a common geotechnical problem occurs in soft soils. The replacement method is the easiest way to improve this problematic soil. This technique is carried out by removing the unwanted part of the soil and replacing it with a more suitable material or soil. This study focuses on using Lightweight Expanded Clay Aggregate (LECA) as a construction material to replace normal sand and aggregate in filling work. LECA is one of the best alternatives that can be used to improve soil properties because it is lightweight, strong and environmentally friendly. However, there are no specific guidelines for the LECA replacement in filling work. Therefore, this study was conducted to develop the construction procedures and LECA replacement requirements for geotechnical application in Malaysia. LECA aggregates have been used as a filling material to solve the settlement problem at Masjid At-Taqwa, Teluk Intan, Perak, Malaysia. LECA samples were collected from different location at different compaction levels for inspection of physical properties and quality of compaction examination. The level of compaction effort performed on LECA replacement represents by the number of passes. The relationship in compaction conditions related to LECA replacement is determined by two graphs namely LECA Compaction Effort and Targeted Compaction Level. The compaction quality of LECA aggregate filling work can be checked using Lightweight Deflectometer (LWD). The maximum desired density can be determined in advance. With reference to the LECA Compaction Effort plot established in this study, the number of passes that need to be performed during the placement work can be planned according to the desired compact density. Whereas, the compaction level, R% can be predicted based on the Target Compaction Level plot. An LWD test should then be carried out to ensure that the compacted density reaches the required level. Elsevier Ltd 2023-06 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40786/1/Lightweight%20Expanded%20Clay%20Aggregate%20%28LECA%29%20as%20replacement.pdf pdf en http://umpir.ump.edu.my/id/eprint/40786/2/Lightweight%20Expanded%20Clay%20Aggregate%20%28LECA%29%20as%20replacement%20materials%20for%20geotechnical%20application_ABS.pdf Azhani, Zukri and Ramli, Nazir and Dayang Zulaika, Abang Hasbollah and Amir Hamzah, Mustapha (2023) Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application. Physics and Chemistry of the Earth, 130 (103366). pp. 1-7. ISSN 1474-7065. (Published) https://doi.org/10.1016/j.pce.2023.103366 https://doi.org/10.1016/j.pce.2023.103366
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Azhani, Zukri
Ramli, Nazir
Dayang Zulaika, Abang Hasbollah
Amir Hamzah, Mustapha
Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application
description Settlement is a common geotechnical problem occurs in soft soils. The replacement method is the easiest way to improve this problematic soil. This technique is carried out by removing the unwanted part of the soil and replacing it with a more suitable material or soil. This study focuses on using Lightweight Expanded Clay Aggregate (LECA) as a construction material to replace normal sand and aggregate in filling work. LECA is one of the best alternatives that can be used to improve soil properties because it is lightweight, strong and environmentally friendly. However, there are no specific guidelines for the LECA replacement in filling work. Therefore, this study was conducted to develop the construction procedures and LECA replacement requirements for geotechnical application in Malaysia. LECA aggregates have been used as a filling material to solve the settlement problem at Masjid At-Taqwa, Teluk Intan, Perak, Malaysia. LECA samples were collected from different location at different compaction levels for inspection of physical properties and quality of compaction examination. The level of compaction effort performed on LECA replacement represents by the number of passes. The relationship in compaction conditions related to LECA replacement is determined by two graphs namely LECA Compaction Effort and Targeted Compaction Level. The compaction quality of LECA aggregate filling work can be checked using Lightweight Deflectometer (LWD). The maximum desired density can be determined in advance. With reference to the LECA Compaction Effort plot established in this study, the number of passes that need to be performed during the placement work can be planned according to the desired compact density. Whereas, the compaction level, R% can be predicted based on the Target Compaction Level plot. An LWD test should then be carried out to ensure that the compacted density reaches the required level.
format Article
author Azhani, Zukri
Ramli, Nazir
Dayang Zulaika, Abang Hasbollah
Amir Hamzah, Mustapha
author_facet Azhani, Zukri
Ramli, Nazir
Dayang Zulaika, Abang Hasbollah
Amir Hamzah, Mustapha
author_sort Azhani, Zukri
title Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application
title_short Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application
title_full Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application
title_fullStr Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application
title_full_unstemmed Lightweight Expanded Clay Aggregate (LECA) as replacement materials for geotechnical application
title_sort lightweight expanded clay aggregate (leca) as replacement materials for geotechnical application
publisher Elsevier Ltd
publishDate 2023
url http://umpir.ump.edu.my/id/eprint/40786/1/Lightweight%20Expanded%20Clay%20Aggregate%20%28LECA%29%20as%20replacement.pdf
http://umpir.ump.edu.my/id/eprint/40786/2/Lightweight%20Expanded%20Clay%20Aggregate%20%28LECA%29%20as%20replacement%20materials%20for%20geotechnical%20application_ABS.pdf
http://umpir.ump.edu.my/id/eprint/40786/
https://doi.org/10.1016/j.pce.2023.103366
https://doi.org/10.1016/j.pce.2023.103366
_version_ 1822924357079400448
score 13.235362

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