Fiber-reinforced sand strength and dilation characteristics
Randomly distributed fiber reinforcement is used to provide an isotropic increase in the sand shear strength. The previous studies were not consistent regarding the fibers effect on the volumetric change behavior of fiber-reinforced sand. In this paper, direct shear tests are conducted on 108 specim...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016-06-01
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| Series: | Ain Shams Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447915000945 |
| _version_ | 1818673157877268480 |
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| author | Hesham M. Eldesouky Mohamed M. Morsy Mohamed F. Mansour |
| author_facet | Hesham M. Eldesouky Mohamed M. Morsy Mohamed F. Mansour |
| author_sort | Hesham M. Eldesouky |
| collection | DOAJ |
| description | Randomly distributed fiber reinforcement is used to provide an isotropic increase in the sand shear strength. The previous studies were not consistent regarding the fibers effect on the volumetric change behavior of fiber-reinforced sand. In this paper, direct shear tests are conducted on 108 specimens to investigate the effects of the fibers content, relative density, normal stress and moisture content on the shear strength and volumetric change behaviors of fiber-reinforced sand. The study investigates also the possibility of using dry fiber-reinforced sand as an alternative to heavily compacted unreinforced moist sand. The results indicate that the fibers inclusion increases the shear strength and dilation of sand. Moisture suppresses the fibers effect on the peak and post-peak shear strengths, and dilation. Dry loose fiber-reinforced sand achieves the same shear strength of heavily compacted unreinforced moist sand, yet at more than double the horizontal displacement. |
| first_indexed | 2024-12-17T07:51:20Z |
| format | Article |
| id | doaj.art-15221814bdaf4f43a44f5597183a8db9 |
| institution | Directory Open Access Journal |
| issn | 2090-4479 |
| language | English |
| last_indexed | 2024-12-17T07:51:20Z |
| publishDate | 2016-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj.art-15221814bdaf4f43a44f5597183a8db92022-12-21T21:57:50ZengElsevierAin Shams Engineering Journal2090-44792016-06-017251752610.1016/j.asej.2015.06.003Fiber-reinforced sand strength and dilation characteristicsHesham M. EldesoukyMohamed M. MorsyMohamed F. MansourRandomly distributed fiber reinforcement is used to provide an isotropic increase in the sand shear strength. The previous studies were not consistent regarding the fibers effect on the volumetric change behavior of fiber-reinforced sand. In this paper, direct shear tests are conducted on 108 specimens to investigate the effects of the fibers content, relative density, normal stress and moisture content on the shear strength and volumetric change behaviors of fiber-reinforced sand. The study investigates also the possibility of using dry fiber-reinforced sand as an alternative to heavily compacted unreinforced moist sand. The results indicate that the fibers inclusion increases the shear strength and dilation of sand. Moisture suppresses the fibers effect on the peak and post-peak shear strengths, and dilation. Dry loose fiber-reinforced sand achieves the same shear strength of heavily compacted unreinforced moist sand, yet at more than double the horizontal displacement.http://www.sciencedirect.com/science/article/pii/S2090447915000945Randomly distributed fibersFiber-reinforced sandDilationShear strengthState parameterDirect shear test |
| spellingShingle | Hesham M. Eldesouky Mohamed M. Morsy Mohamed F. Mansour Fiber-reinforced sand strength and dilation characteristics Ain Shams Engineering Journal Randomly distributed fibers Fiber-reinforced sand Dilation Shear strength State parameter Direct shear test |
| title | Fiber-reinforced sand strength and dilation characteristics |
| title_full | Fiber-reinforced sand strength and dilation characteristics |
| title_fullStr | Fiber-reinforced sand strength and dilation characteristics |
| title_full_unstemmed | Fiber-reinforced sand strength and dilation characteristics |
| title_short | Fiber-reinforced sand strength and dilation characteristics |
| title_sort | fiber reinforced sand strength and dilation characteristics |
| topic | Randomly distributed fibers Fiber-reinforced sand Dilation Shear strength State parameter Direct shear test |
| url | http://www.sciencedirect.com/science/article/pii/S2090447915000945 |
| work_keys_str_mv | AT heshammeldesouky fiberreinforcedsandstrengthanddilationcharacteristics AT mohamedmmorsy fiberreinforcedsandstrengthanddilationcharacteristics AT mohamedfmansour fiberreinforcedsandstrengthanddilationcharacteristics |