Effect of Silica Fume Addition on the Behavior of Silty-Clayey Soils
The aim of this research is to investigate the effect of silica fume addition on the behavior of soil subgrades which has inadequate natural stability. Natural silty-clay soil and silty-clayey soil-silica fume mixtures were compacted at the optimum moisture content and subjected to various laborato...
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| Format: | Article |
| Language: | Arabic |
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Mustansiriyah University/College of Engineering
2012-03-01
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| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1164 |
| _version_ | 1798022874736361472 |
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| author | Adel A. Al-Azzawi Khalida A. Daud Muhammed A. Abdul Sattar |
| author_facet | Adel A. Al-Azzawi Khalida A. Daud Muhammed A. Abdul Sattar |
| author_sort | Adel A. Al-Azzawi |
| collection | DOAJ |
| description |
The aim of this research is to investigate the effect of silica fume addition on the behavior of soil subgrades which has inadequate natural stability. Natural silty-clay soil and silty-clayey soil-silica fume mixtures were compacted at the optimum moisture content and subjected to various laboratory tests. The test results showed a significant improvement in swelling pressure and compressive strength of composite samples with silica fume. The swelling pressure decreased by 87% with increasing silica fume contents from 5% to 15% for all samples and the compressive strength of clay samples increased by 4% with increasing silica fume contents from 5% to 10% and after that, it decreased. It is observed that the permeability of soil increased with increasing silica fume content. The coefficient of permeability increased by 100% with increasing silica fume content to 15%. Also, the results show that the silica fume decreases the development of cracks on the surface of compacted clay samples by reducing crack width by 75%. The investigation showed that silica fume is a valuable material to modify the properties of soil subgrade to make them suitable for construction.
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| first_indexed | 2024-04-11T17:37:03Z |
| format | Article |
| id | doaj.art-bc22c61eb8f74d25aa0f523f5ddeff21 |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-04-11T17:37:03Z |
| publishDate | 2012-03-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-bc22c61eb8f74d25aa0f523f5ddeff212022-12-22T04:11:36ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252012-03-01161Effect of Silica Fume Addition on the Behavior of Silty-Clayey SoilsAdel A. Al-Azzawi0Khalida A. Daud1Muhammed A. Abdul Sattar2College of Engineering , Al-Nahrain University, Baghdad, IraqCollege of Engineering , Al-Nahrain University, Baghdad, IraqUniversity of Baghdad, Baghdad, Iraq The aim of this research is to investigate the effect of silica fume addition on the behavior of soil subgrades which has inadequate natural stability. Natural silty-clay soil and silty-clayey soil-silica fume mixtures were compacted at the optimum moisture content and subjected to various laboratory tests. The test results showed a significant improvement in swelling pressure and compressive strength of composite samples with silica fume. The swelling pressure decreased by 87% with increasing silica fume contents from 5% to 15% for all samples and the compressive strength of clay samples increased by 4% with increasing silica fume contents from 5% to 10% and after that, it decreased. It is observed that the permeability of soil increased with increasing silica fume content. The coefficient of permeability increased by 100% with increasing silica fume content to 15%. Also, the results show that the silica fume decreases the development of cracks on the surface of compacted clay samples by reducing crack width by 75%. The investigation showed that silica fume is a valuable material to modify the properties of soil subgrade to make them suitable for construction. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1164silica fumeswelling pressuresilty-clayey soils |
| spellingShingle | Adel A. Al-Azzawi Khalida A. Daud Muhammed A. Abdul Sattar Effect of Silica Fume Addition on the Behavior of Silty-Clayey Soils Journal of Engineering and Sustainable Development silica fume swelling pressure silty-clayey soils |
| title | Effect of Silica Fume Addition on the Behavior of Silty-Clayey Soils |
| title_full | Effect of Silica Fume Addition on the Behavior of Silty-Clayey Soils |
| title_fullStr | Effect of Silica Fume Addition on the Behavior of Silty-Clayey Soils |
| title_full_unstemmed | Effect of Silica Fume Addition on the Behavior of Silty-Clayey Soils |
| title_short | Effect of Silica Fume Addition on the Behavior of Silty-Clayey Soils |
| title_sort | effect of silica fume addition on the behavior of silty clayey soils |
| topic | silica fume swelling pressure silty-clayey soils |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1164 |
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