Investigation of the Effect of Polymer Emulsion on the Uniaxial Compressive Strength of Aeolian Sand
The present study investigated the effect of vinyl acrylic polymer emulsion (VA) on maximum dry density (γdmax), optimum water content (ωopt), uniaxial compressive strength (UCS) and modulus of elasticity (E) of aeolian sands of Khuzestan plain. Polymer emulsion with percentages of 10, 20, and 30% w...
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| Format: | Article |
| Language: | fas |
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University of Qom
2023-08-01
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| Series: | پژوهشهای زیرساختهای عمرانی |
| Subjects: | |
| Online Access: | https://cer.qom.ac.ir/article_2457_31d9d5a887af4db67dabe1300c178637.pdf |
| _version_ | 1797232970330800128 |
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| author | Mahsa Heravi Akbar Cheshmi |
| author_facet | Mahsa Heravi Akbar Cheshmi |
| author_sort | Mahsa Heravi |
| collection | DOAJ |
| description | The present study investigated the effect of vinyl acrylic polymer emulsion (VA) on maximum dry density (γdmax), optimum water content (ωopt), uniaxial compressive strength (UCS) and modulus of elasticity (E) of aeolian sands of Khuzestan plain. Polymer emulsion with percentages of 10, 20, and 30% were made and after adding to the soil, they were subjected to a compaction test, then cylindrical samples with γdmax and ωopt were made and at curing times 1, 7, 14, 21 and 28 days in two groups were subjected to UCS test. The samples of the first group were cured at laboratory temperature and the samples of the second group were packed with nylon in order to maintain moisture and were cured at a temperature of 20 C. The results of the tests showed that increasing the concentration of the polymer solution had no effect on the γdmax, but it could reduce ωopt. By increasing the curing time and the concentration of the polymer solution, the UCS and E of the first group of samples increased, while the UCS of the second group is without change. Therefore, when the improved sample is tested in a dry state, the UCS increases, and when it is tested in a wet state, the UCS does not change. The electron microscope images show that when the sample is dry the polymer forms bonds and bridges between the sand grains and the UCS and E increase. |
| first_indexed | 2024-04-24T16:08:44Z |
| format | Article |
| id | doaj.art-4668e549b48b45a0af8662c29169e11f |
| institution | Directory Open Access Journal |
| issn | 2783-140X |
| language | fas |
| last_indexed | 2024-04-24T16:08:44Z |
| publishDate | 2023-08-01 |
| publisher | University of Qom |
| record_format | Article |
| series | پژوهشهای زیرساختهای عمرانی |
| spelling | doaj.art-4668e549b48b45a0af8662c29169e11f2024-03-31T19:58:55ZfasUniversity of Qomپژوهشهای زیرساختهای عمرانی2783-140X2023-08-019117519110.22091/cer.2023.9107.14592457Investigation of the Effect of Polymer Emulsion on the Uniaxial Compressive Strength of Aeolian SandMahsa Heravi0Akbar Cheshmi1Department of Structural and Engineering Geology, College of Science, University of Tehran, Tehran, Iran.Department of Structure and Engineering Geology, College of Science, University of Tehran, Tehran, IranThe present study investigated the effect of vinyl acrylic polymer emulsion (VA) on maximum dry density (γdmax), optimum water content (ωopt), uniaxial compressive strength (UCS) and modulus of elasticity (E) of aeolian sands of Khuzestan plain. Polymer emulsion with percentages of 10, 20, and 30% were made and after adding to the soil, they were subjected to a compaction test, then cylindrical samples with γdmax and ωopt were made and at curing times 1, 7, 14, 21 and 28 days in two groups were subjected to UCS test. The samples of the first group were cured at laboratory temperature and the samples of the second group were packed with nylon in order to maintain moisture and were cured at a temperature of 20 C. The results of the tests showed that increasing the concentration of the polymer solution had no effect on the γdmax, but it could reduce ωopt. By increasing the curing time and the concentration of the polymer solution, the UCS and E of the first group of samples increased, while the UCS of the second group is without change. Therefore, when the improved sample is tested in a dry state, the UCS increases, and when it is tested in a wet state, the UCS does not change. The electron microscope images show that when the sample is dry the polymer forms bonds and bridges between the sand grains and the UCS and E increase.https://cer.qom.ac.ir/article_2457_31d9d5a887af4db67dabe1300c178637.pdf"aeolian sand""compaction test""uniaxial compression test""polymer emulsion" |
| spellingShingle | Mahsa Heravi Akbar Cheshmi Investigation of the Effect of Polymer Emulsion on the Uniaxial Compressive Strength of Aeolian Sand پژوهشهای زیرساختهای عمرانی "aeolian sand" "compaction test" "uniaxial compression test" "polymer emulsion" |
| title | Investigation of the Effect of Polymer Emulsion on the Uniaxial Compressive Strength of Aeolian Sand |
| title_full | Investigation of the Effect of Polymer Emulsion on the Uniaxial Compressive Strength of Aeolian Sand |
| title_fullStr | Investigation of the Effect of Polymer Emulsion on the Uniaxial Compressive Strength of Aeolian Sand |
| title_full_unstemmed | Investigation of the Effect of Polymer Emulsion on the Uniaxial Compressive Strength of Aeolian Sand |
| title_short | Investigation of the Effect of Polymer Emulsion on the Uniaxial Compressive Strength of Aeolian Sand |
| title_sort | investigation of the effect of polymer emulsion on the uniaxial compressive strength of aeolian sand |
| topic | "aeolian sand" "compaction test" "uniaxial compression test" "polymer emulsion" |
| url | https://cer.qom.ac.ir/article_2457_31d9d5a887af4db67dabe1300c178637.pdf |
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