Shrinkage parameters of modified compacted clayey soil for sustainable earthworks
The shrinkage limit is one of the Atterberg limits and is a fundamental geotechnical parameter used to assess the settlement and other volume change parameters of engineering soils containing clays. This paper describes shrinkage limits and index tests results on expansive soil treated with rice...
| 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/16483/1/13.pdf |
| _version_ | 1796932473778601984 |
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| author | Onyelowe, Kennedy C. Onyia, Michael E. Duc, Bui Van Firoozi, Ali A. Uche, Okorie A. Kumari, Seema Oyagbola, Ismail Amhadi, Talal Lam, Dao-Phuc |
| author_facet | Onyelowe, Kennedy C. Onyia, Michael E. Duc, Bui Van Firoozi, Ali A. Uche, Okorie A. Kumari, Seema Oyagbola, Ismail Amhadi, Talal Lam, Dao-Phuc |
| author_sort | Onyelowe, Kennedy C. |
| collection | UKM |
| description | The shrinkage limit is one of the Atterberg limits and is a fundamental geotechnical parameter used to assess the settlement
and other volume change parameters of engineering soils containing clays. This paper describes shrinkage limits and
index tests 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 representative soil was subjected to classification
tests and it was found to be high expansive soil, an A-7-6 soil according to American Association of States Highway and
Transportation Officials (AASHTO) and poorly graded according to Universal Soil Classification System (USCS). It was
classified as highly plastic soil. The soil was subjected to treatment exercise at the rate of 0% (reference), 2%, 4%, 6%,
8% and 10% addition of RHA, 5%-QARHA, 10%-QARHA and 15%-QARHA by weight of dry soil. The RHA addition
improved the shrinkage properties; shrinkage limit at varying rates ranging from 5.7%, to 27.9% for 2%, and 10% RHA
addition respectively with reference to the control experiment. And for the shrinkage index, the improvement rate was also
substantial i.e. 7.8% to 55.7% at 2% and 10% RHA addition respectively with reference to the control experiment. The
effect of rice husk ash activated with 5% quicklime lime (5%-QARHA) showed improvement rate of 6.6% and 34.4% at
2% and 10% 5%-QARHA addition respectively with reference to the control experiment. Also, the effect of rice husk ash
activated by 10% and 15% quicklime (10%-QARHA and 15%-QARHA) on the shrinkage properties was presented with
the rates of improvement which shows that the higher the rate of activation of rice husk ash with quicklime, the higher the
pozzolanic performance Finally, rice husk ash and its composites achieved by quicklime activation process have shown to
be alternative cementing materials for use as binders in the modification of expansive soils utilized as subgrade materials. |
| first_indexed | 2024-03-06T04:33:00Z |
| format | Article |
| id | ukm.eprints-16483 |
| institution | Universiti Kebangsaan Malaysia |
| language | English |
| last_indexed | 2024-03-06T04:33:00Z |
| publishDate | 2021 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | ukm.eprints-164832021-04-26T07:03:05Z http://journalarticle.ukm.my/16483/ Shrinkage parameters of modified compacted clayey soil for sustainable earthworks Onyelowe, Kennedy C. Onyia, Michael E. Duc, Bui Van Firoozi, Ali A. Uche, Okorie A. Kumari, Seema Oyagbola, Ismail Amhadi, Talal Lam, Dao-Phuc The shrinkage limit is one of the Atterberg limits and is a fundamental geotechnical parameter used to assess the settlement and other volume change parameters of engineering soils containing clays. This paper describes shrinkage limits and index tests 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 representative soil was subjected to classification tests and it was found to be high expansive soil, an A-7-6 soil according to American Association of States Highway and Transportation Officials (AASHTO) and poorly graded according to Universal Soil Classification System (USCS). It was classified as highly plastic soil. The soil was subjected to treatment exercise at the rate of 0% (reference), 2%, 4%, 6%, 8% and 10% addition of RHA, 5%-QARHA, 10%-QARHA and 15%-QARHA by weight of dry soil. The RHA addition improved the shrinkage properties; shrinkage limit at varying rates ranging from 5.7%, to 27.9% for 2%, and 10% RHA addition respectively with reference to the control experiment. And for the shrinkage index, the improvement rate was also substantial i.e. 7.8% to 55.7% at 2% and 10% RHA addition respectively with reference to the control experiment. The effect of rice husk ash activated with 5% quicklime lime (5%-QARHA) showed improvement rate of 6.6% and 34.4% at 2% and 10% 5%-QARHA addition respectively with reference to the control experiment. Also, the effect of rice husk ash activated by 10% and 15% quicklime (10%-QARHA and 15%-QARHA) on the shrinkage properties was presented with the rates of improvement which shows that the higher the rate of activation of rice husk ash with quicklime, the higher the pozzolanic performance Finally, rice husk ash and its composites achieved by quicklime activation process have shown to be alternative cementing 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/16483/1/13.pdf Onyelowe, Kennedy C. and Onyia, Michael E. and Duc, Bui Van and Firoozi, Ali A. and Uche, Okorie A. and Kumari, Seema and Oyagbola, Ismail and Amhadi, Talal and Lam, Dao-Phuc (2021) Shrinkage parameters of modified compacted clayey soil for sustainable earthworks. Jurnal Kejuruteraan, 33 (1). pp. 133-140. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-331-2021/ |
| spellingShingle | Onyelowe, Kennedy C. Onyia, Michael E. Duc, Bui Van Firoozi, Ali A. Uche, Okorie A. Kumari, Seema Oyagbola, Ismail Amhadi, Talal Lam, Dao-Phuc Shrinkage parameters of modified compacted clayey soil for sustainable earthworks |
| title | Shrinkage parameters of modified compacted clayey soil for sustainable earthworks |
| title_full | Shrinkage parameters of modified compacted clayey soil for sustainable earthworks |
| title_fullStr | Shrinkage parameters of modified compacted clayey soil for sustainable earthworks |
| title_full_unstemmed | Shrinkage parameters of modified compacted clayey soil for sustainable earthworks |
| title_short | Shrinkage parameters of modified compacted clayey soil for sustainable earthworks |
| title_sort | shrinkage parameters of modified compacted clayey soil for sustainable earthworks |
| url | http://journalarticle.ukm.my/16483/1/13.pdf |
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