| 大粒径沥青混合料基层施工压实控制研究 |
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| 引用本文： | 王海军,侯曙光,边疆,李升甫.大粒径沥青混合料基层施工压实控制研究[J].筑路机械与施工机械化,2007,24(8):52-55. |
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| 作者姓名： | 王海军 侯曙光 边疆 李升甫 |
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| 作者单位： | 1. 南京工业大学,土木工程学院,江苏,南京,210009
2. 四川省交通厅公路规划勘测设计研究院,四川,成都,610041 |
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| 摘 要： | 结合沪蓉西高速公路宜长试验段采用大粒径沥青混合料(LSAM)作为柔性基层的实例,采用核子密度仪进行施工压实度跟踪检测。检测结果表明:胶轮压路机对LSAM压实度的提高作用不明显;LSAM-30一次性铺筑13.5cm仍能保证其具有较好的压实性能;核子密度仪测得LSAM压实度有较高水平且有减小趋势时,应立即停止碾压。另外,对LSAM压实度"超百"现象进行了研究,指出对于LSAM基于旋转压实仪的标准密度能更好地指导现场施工。
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| 关 键 词： | 大粒径沥青混合料 柔性基层 核子密度仪 压实度 |
| 文章编号： | 1000-033X（2007）08-0052-04 |
| 修稿时间： | 2006-09-07 |
Compaction Control of Large-stone Asphalt Mixes Base |
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| WANG Hai-jun,HOU Shu-guang,BIAN Jiang,LI Sheng-fu.Compaction Control of Large-stone Asphalt Mixes Base[J].Road Machinery & Construction Mechanization,2007,24(8):52-55. |
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| Authors: | WANG Hai-jun HOU Shu-guang BIAN Jiang LI Sheng-fu |
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| Institution: | 1.School of Civil Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu, China; 2.Sichuan Province Communications Department Highway Planning, Survey Design and Research Institute, Chengdu 610041, Sichuan, China |
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| Abstract: | The large-stone asphalt mixes(LSAM) are used as flexible base on the Yichang-Changyang test section of the west expressway of Shanghai to Chengdu,and the nuclear density apparatus is used to detect the compactness of LSAM pavement. The comparison conclusions are obtained: the pneumatic rollers are not effective in compacting the LSAM;the LSAM-30 still has good densification when the compact thickness is 13.5cm;the rolling should be stopped immediately when the compactness reaches a high level and has indications of decreasing. Moreover, the phenomenon of compactness of LSAM over 100% is researched, and it is presented that the standard density based on the shear gyratory compactor will guide construction. |
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| Keywords: | large-stone asphalt mixes flexible base nuclear density apparatus compactness |
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