Study on Flexural Fatigue Properties of POM Fiber Airport Pavement Concrete
Polyoxymethylene (POM) fiber is a new polymer fiber with the potential to improve the performance of airport pavement concrete. The effect of POM fiber on the flexural fatigue properties of concrete is an important issue in its application for airport pavement concrete. In this study, four-point fle...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/15/2979 |
| _version_ | 1797432733057679360 |
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| author | Zhenhui Wang Rongxin Guo Guoshou Liu Luxin Guo Yong Yan |
| author_facet | Zhenhui Wang Rongxin Guo Guoshou Liu Luxin Guo Yong Yan |
| author_sort | Zhenhui Wang |
| collection | DOAJ |
| description | Polyoxymethylene (POM) fiber is a new polymer fiber with the potential to improve the performance of airport pavement concrete. The effect of POM fiber on the flexural fatigue properties of concrete is an important issue in its application for airport pavement concrete. In this study, four-point flexural fatigue experiments were conducted using ordinary performance concrete (OPC) and POM fiber airport pavement concrete (PFAPC) with fiber volume contents of 0.6% and 1.2%, at four stress levels, to examine the flexural fatigue characteristics of these materials. A two-parameter Weibull distribution test of flexural fatigue life was performed, after examining the change in flexural fatigue deformation using the cycle ratio (<i>n</i>/<i>N</i>). A flexural fatigue life equation was then constructed considering various failure probabilities (survival rate). The results show that POM fiber had no discernible impact on the static load strength of airport pavement concrete, and the difference between PFAPC and OPC in terms of static load strength was less than 5%. POM fiber can substantially increase the flexural fatigue deformation capacity of airport pavement concrete by almost 100%, but POM fiber had a different degree of detrimental impact on the fatigue life of airport pavement concrete compared to OPC, with a maximum decrease of 85%. The fatigue lives of OPC and PFAPC adhered to the two-parameter Weibull distribution, the single- and double-log fatigue equations considering various failure probabilities had a high fitting degree based on the two-parameter Weibull distribution, and their <i>R</i><sup>2</sup> was essentially over 0.90. The ultimate fatigue strength of PFAPC was roughly 4% lower than that of OPC. This study on the flexural fatigue properties of POM fiber airport pavement concrete has apparent research value for the extension of POM fiber to the construction of long-life airport pavements. |
| first_indexed | 2024-03-09T10:05:54Z |
| format | Article |
| id | doaj.art-dce9fafa3e3a43ac87e6814a4316e84f |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T10:05:54Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-dce9fafa3e3a43ac87e6814a4316e84f2023-12-01T23:06:41ZengMDPI AGPolymers2073-43602022-07-011415297910.3390/polym14152979Study on Flexural Fatigue Properties of POM Fiber Airport Pavement ConcreteZhenhui Wang0Rongxin Guo1Guoshou Liu2Luxin Guo3Yong Yan4Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650504, ChinaFaculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650504, ChinaFaculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650504, ChinaFaculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650504, ChinaFaculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650504, ChinaPolyoxymethylene (POM) fiber is a new polymer fiber with the potential to improve the performance of airport pavement concrete. The effect of POM fiber on the flexural fatigue properties of concrete is an important issue in its application for airport pavement concrete. In this study, four-point flexural fatigue experiments were conducted using ordinary performance concrete (OPC) and POM fiber airport pavement concrete (PFAPC) with fiber volume contents of 0.6% and 1.2%, at four stress levels, to examine the flexural fatigue characteristics of these materials. A two-parameter Weibull distribution test of flexural fatigue life was performed, after examining the change in flexural fatigue deformation using the cycle ratio (<i>n</i>/<i>N</i>). A flexural fatigue life equation was then constructed considering various failure probabilities (survival rate). The results show that POM fiber had no discernible impact on the static load strength of airport pavement concrete, and the difference between PFAPC and OPC in terms of static load strength was less than 5%. POM fiber can substantially increase the flexural fatigue deformation capacity of airport pavement concrete by almost 100%, but POM fiber had a different degree of detrimental impact on the fatigue life of airport pavement concrete compared to OPC, with a maximum decrease of 85%. The fatigue lives of OPC and PFAPC adhered to the two-parameter Weibull distribution, the single- and double-log fatigue equations considering various failure probabilities had a high fitting degree based on the two-parameter Weibull distribution, and their <i>R</i><sup>2</sup> was essentially over 0.90. The ultimate fatigue strength of PFAPC was roughly 4% lower than that of OPC. This study on the flexural fatigue properties of POM fiber airport pavement concrete has apparent research value for the extension of POM fiber to the construction of long-life airport pavements.https://www.mdpi.com/2073-4360/14/15/2979airport pavement concretepolyoxymethylene fiberflexural fatigueWeibull distribution functionlife prediction equation |
| spellingShingle | Zhenhui Wang Rongxin Guo Guoshou Liu Luxin Guo Yong Yan Study on Flexural Fatigue Properties of POM Fiber Airport Pavement Concrete Polymers airport pavement concrete polyoxymethylene fiber flexural fatigue Weibull distribution function life prediction equation |
| title | Study on Flexural Fatigue Properties of POM Fiber Airport Pavement Concrete |
| title_full | Study on Flexural Fatigue Properties of POM Fiber Airport Pavement Concrete |
| title_fullStr | Study on Flexural Fatigue Properties of POM Fiber Airport Pavement Concrete |
| title_full_unstemmed | Study on Flexural Fatigue Properties of POM Fiber Airport Pavement Concrete |
| title_short | Study on Flexural Fatigue Properties of POM Fiber Airport Pavement Concrete |
| title_sort | study on flexural fatigue properties of pom fiber airport pavement concrete |
| topic | airport pavement concrete polyoxymethylene fiber flexural fatigue Weibull distribution function life prediction equation |
| url | https://www.mdpi.com/2073-4360/14/15/2979 |
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