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The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays

Soft clay is categorized as problematic due to its weak and dispersive properties which requires stabilization. In Malaysia, there is another challenge, the increment of palm oil waste productions to meet the global demand for food oil. These two concerns motivate engineers to develop novel strategi...

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Main Authors: Al-hokabi, Abdulmajeed, Muzamir, Hasan, Amran, Mugahed, Fediuk, Roman, Vatin, Nikolai Ivanovich, Alshaeer, Honin
Format: Article
Language:English
Published: MDPI AG, Basel, Switzerland 2022
Subjects:
TA Engineering (General). Civil engineering (General)
TE Highway engineering. Roads and pavements
Online Access:http://umpir.ump.edu.my/id/eprint/33416/1/materials-15-01532.pdf
http://umpir.ump.edu.my/id/eprint/33416/
https://doi.org/10.3390/ma15041532
https://doi.org/10.3390/ma15041532
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spelling my.ump.umpir.334162022-03-01T06:41:52Z http://umpir.ump.edu.my/id/eprint/33416/ The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays Al-hokabi, Abdulmajeed Muzamir, Hasan Amran, Mugahed Fediuk, Roman Vatin, Nikolai Ivanovich Alshaeer, Honin TA Engineering (General). Civil engineering (General) TE Highway engineering. Roads and pavements Soft clay is categorized as problematic due to its weak and dispersive properties which requires stabilization. In Malaysia, there is another challenge, the increment of palm oil waste productions to meet the global demand for food oil. These two concerns motivate engineers to develop novel strategies for exploiting palm oil waste in soil stabilization. Utilizing POFA as a soil stabilizing agent is an economical and sustainable option due to that POFA contains high pozzolanic characteristics which make it more suitable and reliable to treat soft soil. This study uses the replacement portion of the soil with stabilizing agents -POFA and Gypsum; aiming to achieve Malaysia green technology goals by the balance of the economic expansion and environmental privilege. However, the aim of this study is to determine the effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties en-hancements of clays. Kaolin S300 is the control sample whereas POFA and gypsum are the used binders. The mechanical properties and shear strength with the curing period were tested. Results showed that treated clay marked increment of optimum water contents and reduction of maximum dry densities, a clear 200% of enhancement of treated clay’s compressive and shear strength with curing period as well as the amount of stabilizing agent to less than 15% of POFA and 6% of POFA. It is also found that as gypsum contains a high amount of lime (CaO), the results illustrate that strength raises significantly even with less curing time due to its high reactivity compared to silica and alu-mina. Overall, the results show an enhancement of mechanical and shear strength properties of treated kaolin supported by microstructural SEM imaging. MDPI AG, Basel, Switzerland 2022-02-18 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/33416/1/materials-15-01532.pdf Al-hokabi, Abdulmajeed and Muzamir, Hasan and Amran, Mugahed and Fediuk, Roman and Vatin, Nikolai Ivanovich and Alshaeer, Honin (2022) The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays. Materials, 15 (4). pp. 1-23. ISSN 1996-1944 https://doi.org/10.3390/ma15041532 https://doi.org/10.3390/ma15041532
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)
TE Highway engineering. Roads and pavements
spellingShingle TA Engineering (General). Civil engineering (General)
TE Highway engineering. Roads and pavements
Al-hokabi, Abdulmajeed
Muzamir, Hasan
Amran, Mugahed
Fediuk, Roman
Vatin, Nikolai Ivanovich
Alshaeer, Honin
The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays
description Soft clay is categorized as problematic due to its weak and dispersive properties which requires stabilization. In Malaysia, there is another challenge, the increment of palm oil waste productions to meet the global demand for food oil. These two concerns motivate engineers to develop novel strategies for exploiting palm oil waste in soil stabilization. Utilizing POFA as a soil stabilizing agent is an economical and sustainable option due to that POFA contains high pozzolanic characteristics which make it more suitable and reliable to treat soft soil. This study uses the replacement portion of the soil with stabilizing agents -POFA and Gypsum; aiming to achieve Malaysia green technology goals by the balance of the economic expansion and environmental privilege. However, the aim of this study is to determine the effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties en-hancements of clays. Kaolin S300 is the control sample whereas POFA and gypsum are the used binders. The mechanical properties and shear strength with the curing period were tested. Results showed that treated clay marked increment of optimum water contents and reduction of maximum dry densities, a clear 200% of enhancement of treated clay’s compressive and shear strength with curing period as well as the amount of stabilizing agent to less than 15% of POFA and 6% of POFA. It is also found that as gypsum contains a high amount of lime (CaO), the results illustrate that strength raises significantly even with less curing time due to its high reactivity compared to silica and alu-mina. Overall, the results show an enhancement of mechanical and shear strength properties of treated kaolin supported by microstructural SEM imaging.
format Article
author Al-hokabi, Abdulmajeed
Muzamir, Hasan
Amran, Mugahed
Fediuk, Roman
Vatin, Nikolai Ivanovich
Alshaeer, Honin
author_facet Al-hokabi, Abdulmajeed
Muzamir, Hasan
Amran, Mugahed
Fediuk, Roman
Vatin, Nikolai Ivanovich
Alshaeer, Honin
author_sort Al-hokabi, Abdulmajeed
title The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays
title_short The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays
title_full The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays
title_fullStr The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays
title_full_unstemmed The effect of POFA-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays
title_sort effect of pofa-gypsum binary mixture replacement on the performance of mechanical and microstructural properties enhancements of clays
publisher MDPI AG, Basel, Switzerland
publishDate 2022
url http://umpir.ump.edu.my/id/eprint/33416/1/materials-15-01532.pdf
http://umpir.ump.edu.my/id/eprint/33416/
https://doi.org/10.3390/ma15041532
https://doi.org/10.3390/ma15041532
_version_ 1726791654653820928
score 13.211869

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