Impact of Fiber Diameter On-Road Performance of Cement-Stabilized Macadam
Cement-stabilized macadam is the most widely used road base material in road engineering. The current study investigated the impact of fiber diameter on its performance. The authors prepared polyester fibers with diameters of 20, 35, 70, and 105 μm and added them to cement-stabilized macadam. Then,...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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RTU Press
2017-03-01
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| Series: | The Baltic Journal of Road and Bridge Engineering |
| Subjects: | |
| Online Access: | https://bjrbe-journals.rtu.lv/article/view/3294 |
| _version_ | 1818929830109904896 |
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| author | Zhijun Liu Dongquan Wang Xiaobi Wei Liangliang Wang |
| author_facet | Zhijun Liu Dongquan Wang Xiaobi Wei Liangliang Wang |
| author_sort | Zhijun Liu |
| collection | DOAJ |
| description | Cement-stabilized macadam is the most widely used road base material in road engineering. The current study investigated the impact of fiber diameter on its performance. The authors prepared polyester fibers with diameters of 20, 35, 70, and 105 μm and added them to cement-stabilized macadam. Then, the indoor shrinkage tests and mechanical property tests at different ages were conducted. Then, the property changes of the polyester-reinforced cement-stabilized macadam were analysed. The water loss rate of the polyester-reinforced cement-stabilized macadam is subject to the combined influence of the “water loss surface effect” and “water loss porthole effect.”With increasing fiber diameter, the water loss surface effect becomes stronger, and the water loss porthole effect gradually decreases; thus, the overall effect transitions from the latter to the former. Moreover, the water loss rate shows an increasing trend of decreasing to its minimum. Therefore, with increasing fiber diameter, the average dry shrinkage coefficient of the polyester-reinforced cement-stabilized macadam first increases and then decreases, while the temperature shrinkage coefficients increase. The change in the fiber diameter does not significantly affect the compressive resilient modulus of the polyester-reinforced cement-stabilized macadam if the fiber content remains constant. These findings demonstrate the functional mechanism of the fiber diameter on the road performance of cement-stabilized macadam, thus improving our understanding of the road performance of the polyester-reinforced cement-stabilized macadam and laying a solid theoretical foundation for its many applications. |
| first_indexed | 2024-12-20T03:51:02Z |
| format | Article |
| id | doaj.art-0d80dd7e8cc345708bcb34c64eee76d2 |
| institution | Directory Open Access Journal |
| issn | 1822-427X 1822-4288 |
| language | English |
| last_indexed | 2024-12-20T03:51:02Z |
| publishDate | 2017-03-01 |
| publisher | RTU Press |
| record_format | Article |
| series | The Baltic Journal of Road and Bridge Engineering |
| spelling | doaj.art-0d80dd7e8cc345708bcb34c64eee76d22022-12-21T19:54:27ZengRTU PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882017-03-01121122010.3846/bjrbe.2017.021803Impact of Fiber Diameter On-Road Performance of Cement-Stabilized MacadamZhijun Liu0Dongquan Wang1Xiaobi Wei2Liangliang Wang3State Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics & Civil Engineering, China University of Mining & Technology, No. 1 University Road, Xuzhou 221116, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics & Civil Engineering, China University of Mining & Technology, No. 1 University Road, Xuzhou 221116, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics & Civil Engineering, China University of Mining & Technology, No. 1 University Road, Xuzhou 221116, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics & Civil Engineering, China University of Mining & Technology, No. 1 University Road, Xuzhou 221116, ChinaCement-stabilized macadam is the most widely used road base material in road engineering. The current study investigated the impact of fiber diameter on its performance. The authors prepared polyester fibers with diameters of 20, 35, 70, and 105 μm and added them to cement-stabilized macadam. Then, the indoor shrinkage tests and mechanical property tests at different ages were conducted. Then, the property changes of the polyester-reinforced cement-stabilized macadam were analysed. The water loss rate of the polyester-reinforced cement-stabilized macadam is subject to the combined influence of the “water loss surface effect” and “water loss porthole effect.”With increasing fiber diameter, the water loss surface effect becomes stronger, and the water loss porthole effect gradually decreases; thus, the overall effect transitions from the latter to the former. Moreover, the water loss rate shows an increasing trend of decreasing to its minimum. Therefore, with increasing fiber diameter, the average dry shrinkage coefficient of the polyester-reinforced cement-stabilized macadam first increases and then decreases, while the temperature shrinkage coefficients increase. The change in the fiber diameter does not significantly affect the compressive resilient modulus of the polyester-reinforced cement-stabilized macadam if the fiber content remains constant. These findings demonstrate the functional mechanism of the fiber diameter on the road performance of cement-stabilized macadam, thus improving our understanding of the road performance of the polyester-reinforced cement-stabilized macadam and laying a solid theoretical foundation for its many applications.https://bjrbe-journals.rtu.lv/article/view/3294experimental studyfiber diameterpolyester-reinforced cement-stabilized macadam (petcsm)shrinkage crackstrength. |
| spellingShingle | Zhijun Liu Dongquan Wang Xiaobi Wei Liangliang Wang Impact of Fiber Diameter On-Road Performance of Cement-Stabilized Macadam The Baltic Journal of Road and Bridge Engineering experimental study fiber diameter polyester-reinforced cement-stabilized macadam (petcsm) shrinkage crack strength. |
| title | Impact of Fiber Diameter On-Road Performance of Cement-Stabilized Macadam |
| title_full | Impact of Fiber Diameter On-Road Performance of Cement-Stabilized Macadam |
| title_fullStr | Impact of Fiber Diameter On-Road Performance of Cement-Stabilized Macadam |
| title_full_unstemmed | Impact of Fiber Diameter On-Road Performance of Cement-Stabilized Macadam |
| title_short | Impact of Fiber Diameter On-Road Performance of Cement-Stabilized Macadam |
| title_sort | impact of fiber diameter on road performance of cement stabilized macadam |
| topic | experimental study fiber diameter polyester-reinforced cement-stabilized macadam (petcsm) shrinkage crack strength. |
| url | https://bjrbe-journals.rtu.lv/article/view/3294 |
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