Corrosion Behavior of Melting Snow Salt on Asphalt Mixtures
[1]ZHANG Wengang,WANG Fang,DING Longting.Corrosion Behavior of Melting Snow Salt on Asphalt Mixtures[J].Journal of Zhengzhou University (Engineering Science),2021,42(01):77-81.[doi:10.13705/j.issn.1671-6833.2020.02.012]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
42
Number of periods:
2021 01
Page number:
77-81
Column:
Public date:
2021-03-14
- Title:
- Corrosion Behavior of Melting Snow Salt on Asphalt Mixtures
- CLC:
- U414
- Abstract:
- Snowfall in northern China often occurs, and melting snow salt, which was mainly composed of sodium chloride, was widely applied to remove snow. And at the same time, it had a serious corrosion effect on the asphalt pavement. In this paper, melting snow salt was used to prepare different concentrations of solution. And different types of asphalt mixtures, such as Stone Matrix Asphalt (SMA-13), Asphalt Concrete (AC-13) and Open-graded Friction Courses (OGFC-13) were tested in different corrosion conditions——different concentration of melting salt solution and different drying-watering cycle times. The dynamic stability (DS), residual marshall stability (MS′), freeze-thaw splitting strength ratio (TSR), and maximum flexural-tensile strain (εB) were tested after corrosion, and the change rules were analysed also. The residual pavement performance percentage of asphalt mixtures was predicted at last. The results indicated that as the concentration of melting salt solution and the drying-watering cycle times increased, the performances of asphalt mixtures were all became worse and worse, the corrosion effect of melting snow salt on asphalt mixture was serious, especially on OGFC.
- References:
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Last Update:
2021-03-15