Moisture-dependent resilient modulus of chemically treated subgrade soil
Traffic loads induce cyclic loading under influence of environmental factors, and is affected by the variation of moisture content and suction (s). These parameters are difficult to quantify, and the methods for determination are cumbersome. This paper presents extensive experimental studies used to...
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| Format: | Article |
| Language: | English English |
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Elsevier
2021
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| Online Access: | http://umpir.ump.edu.my/id/eprint/38084/ http://umpir.ump.edu.my/id/eprint/38084/1/Moisture-dependent%20resilient%20modulus%20of%20chemically.pdf http://umpir.ump.edu.my/id/eprint/38084/2/Moisture-dependent%20resilient%20modulus.pdf |
| _version_ | 1848825418125148160 |
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| author | Nurmunira, Muhammad Siddiqua, Sumi |
| author_facet | Nurmunira, Muhammad Siddiqua, Sumi |
| author_sort | Nurmunira, Muhammad |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Traffic loads induce cyclic loading under influence of environmental factors, and is affected by the variation of moisture content and suction (s). These parameters are difficult to quantify, and the methods for determination are cumbersome. This paper presents extensive experimental studies used to obtain the resilient modulus-suction (MR-s) relationship of the treated subgrade soil. An optimum design of bentonite‑magnesium-alkalinization (BMA) was used an additive. The cyclic Triaxial frame with ELDYN system was employed to measure MR values and the suction was estimated using the filter paper test. A bimodal soil water characteristic curve (SWCC) was
observed for treated soil with unheated BMA additive and pre-treatment at heated (BMAH) conditions due to the presence of cementitious products. The MR-s relationship was also developed for the stabilized soil using a normalized model. Results showed that the BMAH samples had a significant level of improvement of MR at higher suction levels as compared to BMA samples but this behaviour of BMAH didn’t sustain under fully saturated condition. The change in moisture contents under seasonal variation affects the subgrade performance. This study shows the soil additive can effectively improve the mechanical properties of the soil under various moisture contents. The MR for the treated soil can be estimated using the normalized model under the worst-case scenario of a subgrade when the soil is at a fully saturated condition. |
| first_indexed | 2025-11-15T03:28:36Z |
| format | Article |
| id | ump-38084 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:28:36Z |
| publishDate | 2021 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-380842023-07-27T06:59:09Z http://umpir.ump.edu.my/id/eprint/38084/ Moisture-dependent resilient modulus of chemically treated subgrade soil Nurmunira, Muhammad Siddiqua, Sumi TA Engineering (General). Civil engineering (General) Traffic loads induce cyclic loading under influence of environmental factors, and is affected by the variation of moisture content and suction (s). These parameters are difficult to quantify, and the methods for determination are cumbersome. This paper presents extensive experimental studies used to obtain the resilient modulus-suction (MR-s) relationship of the treated subgrade soil. An optimum design of bentonite‑magnesium-alkalinization (BMA) was used an additive. The cyclic Triaxial frame with ELDYN system was employed to measure MR values and the suction was estimated using the filter paper test. A bimodal soil water characteristic curve (SWCC) was observed for treated soil with unheated BMA additive and pre-treatment at heated (BMAH) conditions due to the presence of cementitious products. The MR-s relationship was also developed for the stabilized soil using a normalized model. Results showed that the BMAH samples had a significant level of improvement of MR at higher suction levels as compared to BMA samples but this behaviour of BMAH didn’t sustain under fully saturated condition. The change in moisture contents under seasonal variation affects the subgrade performance. This study shows the soil additive can effectively improve the mechanical properties of the soil under various moisture contents. The MR for the treated soil can be estimated using the normalized model under the worst-case scenario of a subgrade when the soil is at a fully saturated condition. Elsevier 2021-05 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/38084/1/Moisture-dependent%20resilient%20modulus%20of%20chemically.pdf pdf en http://umpir.ump.edu.my/id/eprint/38084/2/Moisture-dependent%20resilient%20modulus.pdf Nurmunira, Muhammad and Siddiqua, Sumi (2021) Moisture-dependent resilient modulus of chemically treated subgrade soil. Engineering Geology, 285 (106028). pp. 1-13. ISSN 0013-7952. (Published) https://doi.org/10.1016/j.enggeo.2021.106028 https://doi.org/10.1016/j.enggeo.2021.106028 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Nurmunira, Muhammad Siddiqua, Sumi Moisture-dependent resilient modulus of chemically treated subgrade soil |
| title | Moisture-dependent resilient modulus of chemically treated subgrade soil |
| title_full | Moisture-dependent resilient modulus of chemically treated subgrade soil |
| title_fullStr | Moisture-dependent resilient modulus of chemically treated subgrade soil |
| title_full_unstemmed | Moisture-dependent resilient modulus of chemically treated subgrade soil |
| title_short | Moisture-dependent resilient modulus of chemically treated subgrade soil |
| title_sort | moisture-dependent resilient modulus of chemically treated subgrade soil |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://umpir.ump.edu.my/id/eprint/38084/ http://umpir.ump.edu.my/id/eprint/38084/ http://umpir.ump.edu.my/id/eprint/38084/ http://umpir.ump.edu.my/id/eprint/38084/1/Moisture-dependent%20resilient%20modulus%20of%20chemically.pdf http://umpir.ump.edu.my/id/eprint/38084/2/Moisture-dependent%20resilient%20modulus.pdf |