| 沥青稳定碎石柔性基层的级配设计及施工 |
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| 引用本文： | 叶志华,冯光乐,吴少鹏,王家主,玄东兴.沥青稳定碎石柔性基层的级配设计及施工[J].武汉理工大学学报(交通科学与工程版),2006,30(5):919-922. |
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| 作者姓名： | 叶志华 冯光乐 吴少鹏 王家主 玄东兴 |
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| 作者单位： | 1. 湖北省沪蓉西高速公路建设指挥部,恩施,445000
2. 武汉理工大学硅酸盐材料工程教育部重点实验室道路材料所,武汉,430070 |
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| 基金项目： | 湖北省交通科技攻关项目 |
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| 摘 要： | 柔性基层能有效缓解半刚性基层沥青路面的反射裂缝问题，改善路用性能，延长使用寿命．文中计算了沥青稳定柔性基层适宜的厚度，研究了采用旋转压实仪进行试件成型，按照莫尔强度理论设计沥青稳定碎石柔性基层LSM-30的方法，并对施工中的压实度随碾压温度及碾压方式的变化进行了研究，得出了适用于大粒径沥青稳定碎石柔性基层的碾压工艺．
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| 关 键 词： | 柔性基层 最佳沥青用量 压实度 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006年4月20日 |
Design and Construction of Large Stone Asphalt Mixture for Flexible Base |
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| Ye Zhihua,Feng Guangle,Wu Shaopeng,Wang Jiazhu,Xuan Dongxing.Design and Construction of Large Stone Asphalt Mixture for Flexible Base[J].journal of wuhan university of technology(transportation science&engineering),2006,30(5):919-922. |
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| Authors: | Ye Zhihua Feng Guangle Wu Shaopeng Wang Jiazhu Xuan Dongxing |
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| Institution: | 1.HuBei Hurongxi Highway Construction Headquarters, Enshi 445000;2.Key Laboratory for Silicate Materials Science and Engineering, the Ministry of Education, Wuhan University of Technology, Wuhan 430070 |
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| Abstract: | The flexible base course can effectively reduce the asphalt pavement destruction from reflected cracks. As a result, it improves pavement performance and prolongs the life span. The thickness of Large Stone Asphalt Mixture is calculated. Based on Mohr strength theory, the design method of Large Stone Mixture of nominal maximum aggregate size 30mm for flexible base using Superpave Gyratory Compactor is investigated in this paper. The changes on degree of compaction as the function of construction temperatures and compaction combinations are also explored in field. Then the technics of compaction for Large Stone Asphalt Mixture is obtained. |
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| Keywords: | flexible base optimal asphalt content degree of compaction |
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