Cohesive Soil Stabilized Using Sewage Sludge Ash/Cement and Nano Aluminum Oxide
In order to improve soft soil strength, a mixture of incinerated sewage sludge ash (SSA) and cement was applied as a soil stabilizer. The intended mix ratio for SSA and cement was 3:1. A-6 clay was selected as the untreated soil. In this study, 15% of clay soil was replaced by SSA/cement to produce...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2012-03-01
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| Series: | International Journal of Transportation Science and Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2046043016301514 |
| _version_ | 1797715892234092544 |
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| author | Huan-Lin Luo Da-Hung Hsiao Deng-Fong Lin Cong-Kai Lin |
| author_facet | Huan-Lin Luo Da-Hung Hsiao Deng-Fong Lin Cong-Kai Lin |
| author_sort | Huan-Lin Luo |
| collection | DOAJ |
| description | In order to improve soft soil strength, a mixture of incinerated sewage sludge ash (SSA) and cement was applied as a soil stabilizer. The intended mix ratio for SSA and cement was 3:1. A-6 clay was selected as the untreated soil. In this study, 15% of clay soil was replaced by SSA/cement to produce the treated soil specimens. Then, four different volumes, namely 0, 1, 2, and 3%, of nano-Al2O3 were mixed with the treated soil as an additive. Tests such as compaction, pH values, Atterberg limits, unconfined compressive strength (UCS), swell potential, California bearing ratio (CBR), and permeability were performed. The results indicate that both UCSs and CBR values of untreated soil were greatly improved by the use of 15% SSA/cement. Moreover, a 1% addition of nano-Al2O3 enhanced the treated soil in terms of both UCS and CBR values. Furthermore, the swell potential was effectively reduced by the use of 15% SSA/cement as compared with untreated soil and the 1% nano-Al2O3 additive fraction offered the best performance. From this study, we conclude that 15% of SSA/cement replacement could effectively stabilize A-6 clay soil, and 1% of nano-Al2O3 additive may be the optimum amount to add to the soil. |
| first_indexed | 2024-03-12T08:13:33Z |
| format | Article |
| id | doaj.art-0ee6ce7e796742e991716b5f3f4a4141 |
| institution | Directory Open Access Journal |
| issn | 2046-0430 |
| language | English |
| last_indexed | 2024-03-12T08:13:33Z |
| publishDate | 2012-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | International Journal of Transportation Science and Technology |
| spelling | doaj.art-0ee6ce7e796742e991716b5f3f4a41412023-09-02T19:01:55ZengKeAi Communications Co., Ltd.International Journal of Transportation Science and Technology2046-04302012-03-0111839910.1260/2046-0430.1.1.83Cohesive Soil Stabilized Using Sewage Sludge Ash/Cement and Nano Aluminum OxideHuan-Lin Luo0Da-Hung Hsiao1Deng-Fong Lin2Cong-Kai Lin3Department of Civil and Ecological Engineering, I-Shou University, 1, section 1, Hsueh-Cheng Rd., Dashu District, Kaohsiung City 84001, R. O. C.Department of Civil Engineering and Institute of Civil Engineering and Mitigating Technology of Disasters, National Kaohsiung University of Applied Science, 415 Chien Kung Road, Kaohsiung 807, Taiwan, R. O. C.Department of Civil and Ecological Engineering, I-Shou University, 1, section 1, Hsueh-Cheng Rd., Dashu District, Kaohsiung City 84001, R. O. C.Department of Civil and Ecological Engineering, I-Shou University, 1, section 1, Hsueh-Cheng Rd., Dashu District, Kaohsiung City 84001, R. O. C.In order to improve soft soil strength, a mixture of incinerated sewage sludge ash (SSA) and cement was applied as a soil stabilizer. The intended mix ratio for SSA and cement was 3:1. A-6 clay was selected as the untreated soil. In this study, 15% of clay soil was replaced by SSA/cement to produce the treated soil specimens. Then, four different volumes, namely 0, 1, 2, and 3%, of nano-Al2O3 were mixed with the treated soil as an additive. Tests such as compaction, pH values, Atterberg limits, unconfined compressive strength (UCS), swell potential, California bearing ratio (CBR), and permeability were performed. The results indicate that both UCSs and CBR values of untreated soil were greatly improved by the use of 15% SSA/cement. Moreover, a 1% addition of nano-Al2O3 enhanced the treated soil in terms of both UCS and CBR values. Furthermore, the swell potential was effectively reduced by the use of 15% SSA/cement as compared with untreated soil and the 1% nano-Al2O3 additive fraction offered the best performance. From this study, we conclude that 15% of SSA/cement replacement could effectively stabilize A-6 clay soil, and 1% of nano-Al2O3 additive may be the optimum amount to add to the soil.http://www.sciencedirect.com/science/article/pii/S2046043016301514 |
| spellingShingle | Huan-Lin Luo Da-Hung Hsiao Deng-Fong Lin Cong-Kai Lin Cohesive Soil Stabilized Using Sewage Sludge Ash/Cement and Nano Aluminum Oxide International Journal of Transportation Science and Technology |
| title | Cohesive Soil Stabilized Using Sewage Sludge Ash/Cement and Nano Aluminum Oxide |
| title_full | Cohesive Soil Stabilized Using Sewage Sludge Ash/Cement and Nano Aluminum Oxide |
| title_fullStr | Cohesive Soil Stabilized Using Sewage Sludge Ash/Cement and Nano Aluminum Oxide |
| title_full_unstemmed | Cohesive Soil Stabilized Using Sewage Sludge Ash/Cement and Nano Aluminum Oxide |
| title_short | Cohesive Soil Stabilized Using Sewage Sludge Ash/Cement and Nano Aluminum Oxide |
| title_sort | cohesive soil stabilized using sewage sludge ash cement and nano aluminum oxide |
| url | http://www.sciencedirect.com/science/article/pii/S2046043016301514 |
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