Study on Mechanical Properties of the Expansive Soil Treated with Iron Tailings Sand
Aiming at researching shear strength parameters of expansive soil modified by industrial waste iron tailings sand, the enhancement of expansive soil is explored from macroscopic and microscopic aspects. After characterization and testing by various means, the results show that expansive soil modifie...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9944845 |
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| author | Chengfu Chu Fei Zhang Daoxiang Wu Meihuang Zhan Yun Liu |
| author_facet | Chengfu Chu Fei Zhang Daoxiang Wu Meihuang Zhan Yun Liu |
| author_sort | Chengfu Chu |
| collection | DOAJ |
| description | Aiming at researching shear strength parameters of expansive soil modified by industrial waste iron tailings sand, the enhancement of expansive soil is explored from macroscopic and microscopic aspects. After characterization and testing by various means, the results show that expansive soil modified by iron tailings sand will increase the maximum dry density of the improved soil and reduce its optimal moisture content, which is beneficial in tuning the moisture content at the construction site. In addition, iron tailings sand can improve the shear strength of expansive soils. The influence of iron tailings sand on cohesion increases first, then decreases, and reaches the peak value at 30%, while the effect on internal friction angle exhibits a continuously increasing trend. Furthermore, according to mercury intrusion tests and microangle analysis, the addition of iron tailings sand can reduce the tiny pores and enhance the occlusal force of the soil. Simultaneously, it increases the number of large pores, maximizing the macroscopic strengthening of iron tailings sand towards the expansive soil. |
| format | Article |
| id | doaj-art-ec581fd60f9943879e383d42da7b74ba |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-ec581fd60f9943879e383d42da7b74ba2025-08-20T02:21:49ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/99448459944845Study on Mechanical Properties of the Expansive Soil Treated with Iron Tailings SandChengfu Chu0Fei Zhang1Daoxiang Wu2Meihuang Zhan3Yun Liu4Hefei University of Technology, Department of Geotechnical Engineering, School of Resources and Environmental Engineering, Hefei, ChinaHefei University of Technology, Department of Geotechnical Engineering, School of Resources and Environmental Engineering, Hefei, ChinaHefei University of Technology, Department of Geotechnical Engineering, School of Resources and Environmental Engineering, Hefei, ChinaHefei University of Technology, Department of Geotechnical Engineering, School of Resources and Environmental Engineering, Hefei, ChinaHefei University of Technology, Department of Geotechnical Engineering, School of Resources and Environmental Engineering, Hefei, ChinaAiming at researching shear strength parameters of expansive soil modified by industrial waste iron tailings sand, the enhancement of expansive soil is explored from macroscopic and microscopic aspects. After characterization and testing by various means, the results show that expansive soil modified by iron tailings sand will increase the maximum dry density of the improved soil and reduce its optimal moisture content, which is beneficial in tuning the moisture content at the construction site. In addition, iron tailings sand can improve the shear strength of expansive soils. The influence of iron tailings sand on cohesion increases first, then decreases, and reaches the peak value at 30%, while the effect on internal friction angle exhibits a continuously increasing trend. Furthermore, according to mercury intrusion tests and microangle analysis, the addition of iron tailings sand can reduce the tiny pores and enhance the occlusal force of the soil. Simultaneously, it increases the number of large pores, maximizing the macroscopic strengthening of iron tailings sand towards the expansive soil.http://dx.doi.org/10.1155/2021/9944845 |
| spellingShingle | Chengfu Chu Fei Zhang Daoxiang Wu Meihuang Zhan Yun Liu Study on Mechanical Properties of the Expansive Soil Treated with Iron Tailings Sand Advances in Civil Engineering |
| title | Study on Mechanical Properties of the Expansive Soil Treated with Iron Tailings Sand |
| title_full | Study on Mechanical Properties of the Expansive Soil Treated with Iron Tailings Sand |
| title_fullStr | Study on Mechanical Properties of the Expansive Soil Treated with Iron Tailings Sand |
| title_full_unstemmed | Study on Mechanical Properties of the Expansive Soil Treated with Iron Tailings Sand |
| title_short | Study on Mechanical Properties of the Expansive Soil Treated with Iron Tailings Sand |
| title_sort | study on mechanical properties of the expansive soil treated with iron tailings sand |
| url | http://dx.doi.org/10.1155/2021/9944845 |
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