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Static and dynamic mechanical properties of warm mixed asphalt mixture before and after aging
| Content Provider | Scilit |
|---|---|
| Author | Song, Yunlian Qi, Feng Liu, Heng |
| Copyright Year | 2018 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering In order to study the effect of warm mix agent on the mechanical properties of warm mix asphalt mixture before and after aging, this article uses the uniaxial compression test and the uniaxial dynamic modulus test which were carried out on the unaged, short-term aging and long-term aging conditions of the matrix and SBS modified asphalt mixture mixed with RH and Evotherm warm mix agent respectively. The results show: the performance of each asphalt mixture at low temperature and high frequency is equivalent, indicating that dynamic mechanics is not suitable for evaluating the low temperature performance of asphalt mixture; high temperature and low frequency can be used as an evaluation index for high temperature anti-rutting of asphalt mixture. By analyzing the rebound modulus, uniaxial dynamic modulus and other results, it shows that the addition of the warm mix agent improves the low temperature performance of the asphalt mixture, alleviates the aging of the asphalt mixture, and the aging of the aging also brings about a decrease in high temperature stability. The beneficial effect of the Evotherm is weak, and the low temperature performance of the asphalt mixture after aging and the high temperature stability of the warm asphalt mixture after long-term aging are improved. From the comprehensive analysis of static and dynamic mechanical properties, the elastic modulus and dynamic modulus of asphalt mixture are not much different, and the dynamic static modulus of the mixture after aging is quite different, which provides a theoretical basis for the dynamic and static modulus transformation. |
| Related Links | http://iopscience.iop.org/article/10.1088/1757-899X/439/4/042052/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/439/4/042052 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 4 |
| Volume Number | 439 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-11-05 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering Petroleum Engineering Asphalt Mixture Low Temperature High Temperature Warm Mix Dynamic Modulus Dynamic Mechanical Properties |
| Content Type | Text |
| Resource Type | Article |
