| 三灰碎石基层抗裂性能研究 |
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| 引用本文： | 赵树庆.三灰碎石基层抗裂性能研究[J].内蒙古公路与运输,2008(5):32-35. |
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| 作者姓名： | 赵树庆 |
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| 作者单位： | 张石高速公路张家口管理处,河北,张家口,075000 |
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| 基金项目： | 河北省交通厅资助项目
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| 摘 要： | 三灰碎石基层具有强度高、稳定性好等特点，非常适于修建高等级公路路面的基层。但是，由于半刚性基层性脆，在温湿状况变化时由于胀缩容易产生裂缝，当沥青面层较薄时，这种裂缝往往要扩展到面层，形成“反射裂缝”。文章阐述了三灰碎石基层收缩机理，对其抗裂性能、耐久性能进行了系统研究。
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| 关 键 词： | 三灰碎石基层 收缩 抗裂 耐久性能 研究 |
Study on the performance of base course with lime-cement-flyash soil bound macadam |
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| ZHAO Shu-qing.Study on the performance of base course with lime-cement-flyash soil bound macadam[J].Highways & Transportation in Inner Mongolia,2008(5):32-35. |
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| Authors: | ZHAO Shu-qing |
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| Institution: | ZHAO Shu-qing |
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| Abstract: | The base course with lime-cement-flyash soil bound macadam has features which are high in strength,better in stability,and much suitable to pave the base course of high-grade pavement.The cracks occur,however,due to the brittleness of semi-rigid base course,and easy to crack as a result of expansion and shrinkage when conditions of temperature and moisture change.When the thickness of asphalt surface is the thinner,this crack may spread to the surface,i.e.,forming reflective cracks,this article describes the mechanism of shrinkage from the lime-cement-flyash soil bound macadam base,with systematic study on crack resistance and durability. |
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| Keywords: | lime-cement-flyash soil bound macadam shrinkage crack resistance durability study |
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