Mechanical Behaviour of Cement and Lime-Stabilised Laterite Subgrade at Various Matric Suctions
Considering the prevalent occurrence of unsaturated soil conditions above the groundwater table, this study explored the influence of soil stabilisation with chemical stabilisers—cement and lime—on the mechanical characteristics of unsaturated laterite soil. Initially, an unconfined compression test was carried out to identify the optimal dosages of cement and lime for stabilising laterite soil. The results indicated that 6% cement and 5% lime, with a 7-day curing period, were the optimal dosages according to the Malaysia Public Works Department specifications. Following this, a series of experiments were performed to assess the unsaturated mechanical behaviour of soil specimens stabilised with these dosages. These experiments utilised an automated, modified suction-controlled oedometer with the axis translation technique to maintain constant suctions of 20 kPa (representing wet conditions) and 400 kPa (representing dry conditions). The findings revealed that the impact of chemical stabilisation (bonding) was more significant on the mechanical behaviour than the effect of partial saturation (suction). Notably, soil stabilisation led to a substantial increase in pre-consolidation pressure, which resulted in a significant reduction in settlement of the investigated soil specimens.
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- Find a library where document is available. Order URL: http://worldcat.org/issn/21967202
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Supplemental Notes:
- © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
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Authors:
- Wahab, Norshakila Abdul
- Rashid, Ahmad Safuan A
- Horpibulsuk, Suksun
- Roshan, Mohammad Jawed
- Kassim, Azman
- Razali, Roslizayati
- Publication Date: 2025-1
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: 4
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Serial:
- Transportation Infrastructure Geotechnology
- Volume: 12
- Issue Number: 1
- Publisher: Springer Publishing
- ISSN: 2196-7202
- EISSN: 2196-7210
- Serial URL: http://link.springer.com/journal/40515
Subject/Index Terms
- TRT Terms: Geotechnical engineering; Mechanics; Soil stabilization; Stabilizers
- Geographic Terms: Malaysia
- Subject Areas: Geotechnology; Transportation (General);
Filing Info
- Accession Number: 01938908
- Record Type: Publication
- Files: TRIS
- Created Date: Dec 6 2024 2:39PM