Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization
This study assessed the laboratory model investigation to evaluate the feasibility of using reinforced alkali-activated binder for the purpose of soil stabilization. This paper consisted of two stages. The first stage investigated the efficacy of incorporating alkali-activated binder in conjunction...
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| Format: | Article |
| Language: | English |
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A S T M International
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/62280/ http://psasir.upm.edu.my/id/eprint/62280/1/Laboratory-scale%20model%20of%20reinforced%20alkali-activated%20agro-waste%20for%20clayey%20soil%20stabilization.pdf |
| _version_ | 1848854598396149760 |
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| author | Pourakbar, Shahram Kim Huat, Bujang |
| author_facet | Pourakbar, Shahram Kim Huat, Bujang |
| author_sort | Pourakbar, Shahram |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study assessed the laboratory model investigation to evaluate the feasibility of using reinforced alkali-activated binder for the purpose of soil stabilization. This paper consisted of two stages. The first stage investigated the efficacy of incorporating alkali-activated binder in conjunction with reinforcement inclusion, which improves satisfactory mechanical properties in treated soil. As such, in the first stage, palm oil fuel ash (POFA) and wollastonite microfibers were incorporated in the form of precursor and dispersed discrete reinforcement, respectively. In this stage, the unconfined compressive strength (UCS) was used as a practical indicator to investigate strength development. In the second stage of this study, a model procedure of interaction between a strip footing model and stabilized clayey soil by column technique was examined. From the perspective of strength development, alkali-activated agro-waste showed, undoubtedly, a very effective method to enhance the peak strength of investigated soil. Besides, the inclusion of the reinforcement material in alkali-activated samples increased the peak stress and improved the post-peak behavior, namely by modifying the original brittle response of the stabilized soil into a more ductile one. Depending on the replacement area ratio, results of the second phase showed that a considerable bearing capacity increase of up to 197 % of treated columns could be achieved. |
| first_indexed | 2025-11-15T11:12:25Z |
| format | Article |
| id | upm-62280 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:12:25Z |
| publishDate | 2017 |
| publisher | A S T M International |
| recordtype | eprints |
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| spelling | upm-622802019-05-24T03:11:05Z http://psasir.upm.edu.my/id/eprint/62280/ Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization Pourakbar, Shahram Kim Huat, Bujang This study assessed the laboratory model investigation to evaluate the feasibility of using reinforced alkali-activated binder for the purpose of soil stabilization. This paper consisted of two stages. The first stage investigated the efficacy of incorporating alkali-activated binder in conjunction with reinforcement inclusion, which improves satisfactory mechanical properties in treated soil. As such, in the first stage, palm oil fuel ash (POFA) and wollastonite microfibers were incorporated in the form of precursor and dispersed discrete reinforcement, respectively. In this stage, the unconfined compressive strength (UCS) was used as a practical indicator to investigate strength development. In the second stage of this study, a model procedure of interaction between a strip footing model and stabilized clayey soil by column technique was examined. From the perspective of strength development, alkali-activated agro-waste showed, undoubtedly, a very effective method to enhance the peak strength of investigated soil. Besides, the inclusion of the reinforcement material in alkali-activated samples increased the peak stress and improved the post-peak behavior, namely by modifying the original brittle response of the stabilized soil into a more ductile one. Depending on the replacement area ratio, results of the second phase showed that a considerable bearing capacity increase of up to 197 % of treated columns could be achieved. A S T M International 2017 Article NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/62280/1/Laboratory-scale%20model%20of%20reinforced%20alkali-activated%20agro-waste%20for%20clayey%20soil%20stabilization.pdf Pourakbar, Shahram and Kim Huat, Bujang (2017) Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization. Advances in Civil Engineering Materials, 6 (1). pp. 83-105. ISSN 2379-1357; ESSN: 2165-3984 https://www.astm.org/DIGITAL_LIBRARY/JOURNALS/ACEM/PAGES/ACEM20160023.htm 10.1520/ACEM20160023 |
| spellingShingle | Pourakbar, Shahram Kim Huat, Bujang Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization |
| title | Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization |
| title_full | Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization |
| title_fullStr | Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization |
| title_full_unstemmed | Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization |
| title_short | Laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization |
| title_sort | laboratory-scale model of reinforced alkali-activated agro-waste for clayey soil stabilization |
| url | http://psasir.upm.edu.my/id/eprint/62280/ http://psasir.upm.edu.my/id/eprint/62280/ http://psasir.upm.edu.my/id/eprint/62280/ http://psasir.upm.edu.my/id/eprint/62280/1/Laboratory-scale%20model%20of%20reinforced%20alkali-activated%20agro-waste%20for%20clayey%20soil%20stabilization.pdf |