Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure
Atterberg limits are one of the fundamental geotechnical parameters used to assess the settlement and other volume change parameters of engineering soils containing clays. This paper describes index test results on expansive soil treated with rice husk ash (RHA) and 5%, 10%, and 15% quicklime activa...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2021
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| Online Access: | http://journalarticle.ukm.my/18770/ http://journalarticle.ukm.my/18770/1/23.pdf |
| _version_ | 1848814662339002368 |
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| author | Onyelowe, Kennedy C. Onyia, Michael E. Onukwugha, Eze R. Ezugwu, Charles N. Odumaded, A. Obianyo, Ifeyinwa I. Chigbo, Ikechukwu Kelechi-Asumba, Sylvia |
| author_facet | Onyelowe, Kennedy C. Onyia, Michael E. Onukwugha, Eze R. Ezugwu, Charles N. Odumaded, A. Obianyo, Ifeyinwa I. Chigbo, Ikechukwu Kelechi-Asumba, Sylvia |
| author_sort | Onyelowe, Kennedy C. |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | Atterberg limits are one of the fundamental geotechnical parameters used to assess the settlement and other volume change parameters of engineering soils containing clays. This paper describes index test results on expansive soil treated with rice husk ash (RHA) and 5%, 10%, and 15% quicklime activated rice husk ash (QARHA) obtained using laboratory testing procedure. The cost of conventional binders used in earthwork has necessitated the need to look for cheaper materials that serve the same purpose. Also, the extent of environmental poisoning due to the use of cement is worrisome and has motivated the use of alternative and green supplementary cements in soils stabilization. However, previous research works have dwelt on the use of ash derived from the combustion of solid waste materials like rice husk ash. But the present work has gone a step further to activate the properties of rice husk ash with three proportions of quicklime and this novel procedure has not been reported by any work in recent times. After preliminary tests, the test soil was classified as highly plastic soil. The soil was further subjected to treatment exercise at the rate of 0% (control), 2%, 4%, 6%, 8%, and 10% addition of RHA, 5%-QARHA, 10%-QARHA, and 15%-QARHA by weight of test soil. The RHA addition improved the index properties; liquid and plastic limits and plasticity index at varying rates. The rates of improvement show that the higher the rate of activation of rice husk ash with quicklime, the higher the pozzolanic performance, which tends to cement the soil particles together and improve the consistency through flocculation. Finally, rice husk ash and its composites achieved by quicklime activation process have shown to be alternative cementing construction materials for use as binders in the modification of expansive soils utilized as subgrade materials. |
| first_indexed | 2025-11-15T00:37:39Z |
| format | Article |
| id | oai:generic.eprints.org:18770 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:37:39Z |
| publishDate | 2021 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:187702022-06-10T01:50:37Z http://journalarticle.ukm.my/18770/ Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure Onyelowe, Kennedy C. Onyia, Michael E. Onukwugha, Eze R. Ezugwu, Charles N. Odumaded, A. Obianyo, Ifeyinwa I. Chigbo, Ikechukwu Kelechi-Asumba, Sylvia Atterberg limits are one of the fundamental geotechnical parameters used to assess the settlement and other volume change parameters of engineering soils containing clays. This paper describes index test results on expansive soil treated with rice husk ash (RHA) and 5%, 10%, and 15% quicklime activated rice husk ash (QARHA) obtained using laboratory testing procedure. The cost of conventional binders used in earthwork has necessitated the need to look for cheaper materials that serve the same purpose. Also, the extent of environmental poisoning due to the use of cement is worrisome and has motivated the use of alternative and green supplementary cements in soils stabilization. However, previous research works have dwelt on the use of ash derived from the combustion of solid waste materials like rice husk ash. But the present work has gone a step further to activate the properties of rice husk ash with three proportions of quicklime and this novel procedure has not been reported by any work in recent times. After preliminary tests, the test soil was classified as highly plastic soil. The soil was further subjected to treatment exercise at the rate of 0% (control), 2%, 4%, 6%, 8%, and 10% addition of RHA, 5%-QARHA, 10%-QARHA, and 15%-QARHA by weight of test soil. The RHA addition improved the index properties; liquid and plastic limits and plasticity index at varying rates. The rates of improvement show that the higher the rate of activation of rice husk ash with quicklime, the higher the pozzolanic performance, which tends to cement the soil particles together and improve the consistency through flocculation. Finally, rice husk ash and its composites achieved by quicklime activation process have shown to be alternative cementing construction materials for use as binders in the modification of expansive soils utilized as subgrade materials. Penerbit Universiti Kebangsaan Malaysia 2021 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/18770/1/23.pdf Onyelowe, Kennedy C. and Onyia, Michael E. and Onukwugha, Eze R. and Ezugwu, Charles N. and Odumaded, A. and Obianyo, Ifeyinwa I. and Chigbo, Ikechukwu and Kelechi-Asumba, Sylvia (2021) Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure. Jurnal Kejuruteraan, 33 (3). pp. 651-659. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-333-2021/ |
| spellingShingle | Onyelowe, Kennedy C. Onyia, Michael E. Onukwugha, Eze R. Ezugwu, Charles N. Odumaded, A. Obianyo, Ifeyinwa I. Chigbo, Ikechukwu Kelechi-Asumba, Sylvia Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure |
| title | Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure |
| title_full | Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure |
| title_fullStr | Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure |
| title_full_unstemmed | Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure |
| title_short | Atterberg limits of modified compacted clayey soil for sustainable green subgrade structure |
| title_sort | atterberg limits of modified compacted clayey soil for sustainable green subgrade structure |
| url | http://journalarticle.ukm.my/18770/ http://journalarticle.ukm.my/18770/ http://journalarticle.ukm.my/18770/1/23.pdf |