| 高液限粘土路用填料的改良研究 |
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| 引用本文： | 刘峥嵘.高液限粘土路用填料的改良研究[J].路基工程,2010,0(1):131-133. |
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| 作者姓名： | 刘峥嵘 |
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| 作者单位： | 湖南省交通规划勘察设计院, 长沙 410008 |
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| 摘 要： | 为了对高液限粘土进行路用填料改良研究,分别对其进行了石灰、粉煤灰、水泥、石灰加粉煤灰以及砂砾的改良试验。试验结果表明,高液限粘土采用4％,5％的石灰改良后,CBR值分别为原土的12.5,14.3,14.7和16.1,15.6,16.0倍;经粉煤灰改良后的高液限粘土CBR强度改善不明显;采用3％,4％的水泥改良后,高液限粘土CBR值分别为原土的9.0,9.0,9.2和12.3,12.8,13.8倍;石灰和粉煤灰联合改良后,高液限粘土CBR值分别为原土的6.5,7.1,8.1和15.0,15.8,16.8倍。
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| 关 键 词： | 高液限粘土 路用填料 石灰 粉煤灰 水泥 化学改良 |
| 收稿时间： | 2019-10-28 |
Study on Improvement of High Liquid Limit Clay Used as Pavement Filling |
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| Authors: | LIU Zheng-rong |
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| Affiliation: | Hunan Provincial Communications Planning/a>;Survey & Design Institute/a>;Changsha 410008/a>;China |
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| Abstract: | In order for study on the improvement of high liquid limit clay used as pavement filling,carry out test for the improvement of clay mixed with lime,flyash,cement,lime-flyash and grit separately.The result indicates that the CBR value of the high liquid limit clay improved with 4% or 5% lime is 12.5,14.3,14.7 or 16.1,15.6,16.0 multiples to that of the original clay;CBR strength of the high liquid limit clay improved with flyash is not increased obviously;CBR value of the high liquid limit clay improved with ... |
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| Keywords: | high liquid limit clay pavement filling lime flyash cement chemical modification |
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