| 半刚性基层裂缝发展机理分析与温缩性能研究 |
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| 引用本文： | 刘国承,郤玉山,陈李峰,孙雪伟.半刚性基层裂缝发展机理分析与温缩性能研究[J].现代交通技术,2014(1):7-10. |
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| 作者姓名： | 刘国承 郤玉山 陈李峰 孙雪伟 |
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| 作者单位： | 江苏省交通工程集团有限公司;江苏省交通工程集团有限公司;江苏燕宁新材料科技发展有限公司;江苏燕宁新材料科技发展有限公司 |
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| 摘 要： | 半刚性基层路面是国内各等级公路广泛采用的路面结构形式,而半刚性基层裂缝问题一直是研究的重点和难点,文章通过对半刚性基层裂缝发展机理分析,重点研究水泥稳定碎石混合料温缩性能的影响因素,利用正交试验法开展温缩试验,提出混合料最大温缩应变的合理组合,分析计算水泥稳定碎石温缩系数的变化规律,为有效控制半刚性基层裂缝提供参考.
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| 关 键 词： | 半刚性基层 水泥稳定碎石 温缩性能 正交试验 裂纹 |
Analysis of Crack Development Mechanism and Temperature Shrinkage Performance Research of Semi-rigid Base |
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| Liu Guocheng,Xi Yushan,Chen Lifeng,Sun Xuewei.Analysis of Crack Development Mechanism and Temperature Shrinkage Performance Research of Semi-rigid Base[J].Modern Transportation Technology,2014(1):7-10. |
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| Authors: | Liu Guocheng Xi Yushan Chen Lifeng Sun Xuewei |
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| Institution: | 1.Jiangsu Provincial Transportation Engineering Group Co.,Ltd., Nanjing 210006, China; 2. Jiangsu Yearning Advanced Materials Technology Co., Ltd., Nanjing 211112, China ) |
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| Abstract: | Semi-rigid base pavement is widely used, while the semi-rigid base crack problem is the inportant and difficult points of research. Based on developing mechanisms of semi-rigid base cracks, focusing on factors that influence temperature shrinkage performance of cement stabilized macadam, temperature shrinkage tests are carried out,using orthogonal test reasonable combination of maximum temperature shrinkage strain of the mixture are put forward, the changing law of cement stabilized macadam temperature shrinkage coefficient are analyzed, which provide practical basis for the effective control of semi-rigid base cracks. |
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| Keywords: | semi-rigid base cement stabilized macadam temperature shrinkage performance orthogonal test crack |
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