Role of Fly Ash on Strength Properties of Rejuvenated Soil Cement for Pavement Materials
Stabilization with cement is the most commonly used technique for the improvement of soil physical, mechanical, and engineering properties. This research reported on the properties of the rejuvenation for recycled soil cement with incorporation of fly ash (FA). The study showed that the specific gra...
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| Format: | Article |
| Language: | English |
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Sciendo
2021-12-01
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| Series: | Civil and Environmental Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/cee-2021-0059 |
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| author | Chindaprasirt Prinya Kampala Apichit Daprom Pattawitchaya Jitsangiam Peerapong Horpibulsuk Suksun |
| author_facet | Chindaprasirt Prinya Kampala Apichit Daprom Pattawitchaya Jitsangiam Peerapong Horpibulsuk Suksun |
| author_sort | Chindaprasirt Prinya |
| collection | DOAJ |
| description | Stabilization with cement is the most commonly used technique for the improvement of soil physical, mechanical, and engineering properties. This research reported on the properties of the rejuvenation for recycled soil cement with incorporation of fly ash (FA). The study showed that the specific gravity of Rejuvenated Soil Cement (RSC) decreased with increasing FA. The free swell ratio and linear shrinkage of RSC were significantly decreased with the increase in FA. The maximum dry unit weight of RSC increased with increasing FA up to the optimum FA content of 20 – 25 %. The optimum water content in compaction was relatively constant with the increase in FA. Particularly, the strength improvement in active zone of FA-RSC was influenced by several factors viz., compaction, packing, rehydration, and pozzolanic reaction. As a result, the unconfined compressive strength (UCS) of RSC increased with increase in FA and curing time. This research clearly showed that the rejuvenation of soil-cement with FA as additive was successful. It was also shown that the normalized UCSs of RSC at various curing times could be used to predict the UCSs at 7 and 28 days. |
| first_indexed | 2024-04-12T09:19:38Z |
| format | Article |
| id | doaj.art-bbcc0aa945e441a59f23c9c298e1286a |
| institution | Directory Open Access Journal |
| issn | 2199-6512 |
| language | English |
| last_indexed | 2024-04-12T09:19:38Z |
| publishDate | 2021-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Civil and Environmental Engineering |
| spelling | doaj.art-bbcc0aa945e441a59f23c9c298e1286a2022-12-22T03:38:42ZengSciendoCivil and Environmental Engineering2199-65122021-12-0117258359610.2478/cee-2021-0059Role of Fly Ash on Strength Properties of Rejuvenated Soil Cement for Pavement MaterialsChindaprasirt Prinya0Kampala Apichit1Daprom Pattawitchaya2Jitsangiam Peerapong3Horpibulsuk Suksun4Sustainable Infrastructure Research and Development Center, Department of Civil Engineering, Faculty of Engineering, Khon Kaen University, Thailand; and Academy of Science, The Royal Society of Thailand, Dusit, Bangkok, 10300, Thailand.Department of Civil Engineering, Faculty of Engineering, Rajamangala University of TechnologyIsan, Khon Kaen Campus, Srichan Rd., Muang District, Khon Kaen, 40000, Thailand.Department of Civil Engineering, Rajamangala University of Technology Isan, Sakon Nakhon Campus, Sakon Nakhon, 47160, Thailand.Department of Civil Engineering, Chiang Mai University, Chiang Mai, 50000, Thailand.Center of Excellence in Innovation for Sustainable Infrastructure Development, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.Stabilization with cement is the most commonly used technique for the improvement of soil physical, mechanical, and engineering properties. This research reported on the properties of the rejuvenation for recycled soil cement with incorporation of fly ash (FA). The study showed that the specific gravity of Rejuvenated Soil Cement (RSC) decreased with increasing FA. The free swell ratio and linear shrinkage of RSC were significantly decreased with the increase in FA. The maximum dry unit weight of RSC increased with increasing FA up to the optimum FA content of 20 – 25 %. The optimum water content in compaction was relatively constant with the increase in FA. Particularly, the strength improvement in active zone of FA-RSC was influenced by several factors viz., compaction, packing, rehydration, and pozzolanic reaction. As a result, the unconfined compressive strength (UCS) of RSC increased with increase in FA and curing time. This research clearly showed that the rejuvenation of soil-cement with FA as additive was successful. It was also shown that the normalized UCSs of RSC at various curing times could be used to predict the UCSs at 7 and 28 days.https://doi.org/10.2478/cee-2021-0059rejuvenated soil cementpozzolanic reactionrehydration effectunconfined compressive strengthsecant modulus of elasticity |
| spellingShingle | Chindaprasirt Prinya Kampala Apichit Daprom Pattawitchaya Jitsangiam Peerapong Horpibulsuk Suksun Role of Fly Ash on Strength Properties of Rejuvenated Soil Cement for Pavement Materials Civil and Environmental Engineering rejuvenated soil cement pozzolanic reaction rehydration effect unconfined compressive strength secant modulus of elasticity |
| title | Role of Fly Ash on Strength Properties of Rejuvenated Soil Cement for Pavement Materials |
| title_full | Role of Fly Ash on Strength Properties of Rejuvenated Soil Cement for Pavement Materials |
| title_fullStr | Role of Fly Ash on Strength Properties of Rejuvenated Soil Cement for Pavement Materials |
| title_full_unstemmed | Role of Fly Ash on Strength Properties of Rejuvenated Soil Cement for Pavement Materials |
| title_short | Role of Fly Ash on Strength Properties of Rejuvenated Soil Cement for Pavement Materials |
| title_sort | role of fly ash on strength properties of rejuvenated soil cement for pavement materials |
| topic | rejuvenated soil cement pozzolanic reaction rehydration effect unconfined compressive strength secant modulus of elasticity |
| url | https://doi.org/10.2478/cee-2021-0059 |
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