| 冲击碾压、橡胶沥青及应力吸收层组合技术在公路工程中的应用研究 |
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| 引用本文： | 李廷刚,李长洪.冲击碾压、橡胶沥青及应力吸收层组合技术在公路工程中的应用研究[J].北京科技大学学报,2011,33(2):244-249. |
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| 作者姓名： | 李廷刚 李长洪 |
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| 作者单位： | 北京科技大学土木与环境工程学院; |
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| 摘 要： | 分析了冲击碾压的作用机理、橡胶沥青的生成机理及应力吸收层应用性能.基于"强基薄面"理论,开展了冲击碾压、橡胶沥青及应力吸收层工艺组合技术在公路工程中应用试验研究.结果表明:对淤泥质软弱地基上的填石路堤进行冲击碾压加固是动力压密和动力固结双重作用结果;橡胶沥青的形成机理是胶粉与基质沥青在高温条件下混合后同时发生物理和化学两种反应,但以物理溶胀为主;橡胶沥青应力吸收层具有吸收应力、减缓反射裂缝、防水和增强层间黏结等优良功能.冲击碾压、橡胶沥青和应力吸收层组合技术现场应用效果良好.
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| 关 键 词： | 道路建设 路面罩面 碾压 沥青 橡胶 |
Application study on the composite technology of impact compaction, asphalt rubber and stress absorbing membrane interlayer in road engineering |
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| LI Ting-gang,LI Chang-hong.Application study on the composite technology of impact compaction, asphalt rubber and stress absorbing membrane interlayer in road engineering[J].Journal of University of Science and Technology Beijing,2011,33(2):244-249. |
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| Authors: | LI Ting-gang LI Chang-hong |
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| Institution: | LI Ting-gang,LI Chang-hong School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | The mechanism of impact compaction and asphalt rubber formation as well as the function of asphalt rubber stress absorbing membrane interlayer(AR-SAMI) in pavement structure are analyzed separately.A composite engineering application test of impact compaction,asphalt rubber and AR-SAMI was carried out based on the strong-foundation and thin-pavement theory.It is shown that the mechanism of impact compaction on rockfill embankment placed on a weak muddy soil foundation is the combined action of dynamic compr... |
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| Keywords: | road construction pavement overlays compaction asphalt rubber |
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