| 摘要: |
| 通过室内模拟试验，研究了施工气温对泡沫沥青冷再生混合料性能的影响及偏低气温下提高泡沫沥青冷再生混合料性能的方法与措施.结果表明：施工气温对 |
| 关键词: 泡沫沥青 冷再生混合料 拌和及成型温度 击实次数 施工温度 |
| DOI：10.3969/j.issn.1007 9629.2013.02.019 |
| 分类号: |
| 基金项目: |
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| Effect of Construction Temperature on Properties of Cold RecyclingMixture with Foamed Bitumen |
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LI Xiu jun1, SHI Fang zhi2, TIAN Yuan1
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1.College of Environment and Architecture, University of Shanghai for Science & Technology, Shanghai200093,China;2.Evaluation Institute of Jiaxing for High Transportation, Jiaxing 314000, China
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| Abstract: |
| By simulating different construction temperature and a large number of tests, the effect of construction temperature on properties of cold recycling mixture with foamed bitumen was investigated and the measures to improve the properties of the mixture under low temperature were proposed. The results show that the suitable construction temperature of the mixture should be no less than 20℃. When molded in lower temperature(1015℃), asphalt of better foaming effects is recommended with the compaction work to be enhanced. In lab test, when compacting times is increased to 105, the performance of mixture is equivalent to the mixture molded by standard method at normal temperature. It is suggested that the temperature at which specimens are molded in lab mix design be consistent with on site construction temperature. When the temperature of construction is low, it is suggested that the degree of compaction should observe the compaction standards by increasing the compactor pass or increasing the tonnage of the compactor rollers. |
| Key words: foamed bitumen cold recycling mixture mixing and molding temperature compacting times construction temperature |
