| 泡沫沥青混合料抗剪性能研究 |
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| 引用本文： | 陈国强,李秀君,刘黎萍,朱红哥.泡沫沥青混合料抗剪性能研究[J].中南公路工程,2010(1):146-149,158. |
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| 作者姓名： | 陈国强 李秀君 刘黎萍 朱红哥 |
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| 作者单位： | 同济大学道路与铁道工程教育部重点实验室;上海理工大学城市建设与环境工程学院; |
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| 摘 要： | 当前，高等级公路的交通特点已逐渐向多轴次、重轴载、高轮压发展，致使路面结构较易产生剪切破坏。泡沫沥青混合料作为一种新型环保的柔性基层材料，其抗剪性能方面的研究目前甚少。通过单轴贯人试验，着重研究集料级配、水泥含量、沥青含量、养护条件、温度变化5个因素对泡沫沥青混合料抗剪强度的影响。研究发现，不同级配对泡沫沥青混合料抗剪强度有不同影响；水泥可提高泡沫沥青混合料早期强度，但亦会增加基层刚度；沥青含量在合适范围内时，沥青越少其抗剪强度越大；养生过程是泡沫沥青混合料强度快速增长的过程；泡沫沥青混合料温度敏感性较高，随温度上升其抗剪强度显著下降。
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| 关 键 词： | 泡沫沥青混合料 柔性基层 单轴贯入试验 抗剪强度 |
Shear Performance Evaluation of Foam Asphalt Mixture |
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| CHEN Guoqiang,LI Xiujun,LIU Liping,ZHU Hongge.Shear Performance Evaluation of Foam Asphalt Mixture[J].Central South Highway Engineering,2010(1):146-149,158. |
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| Authors: | CHEN Guoqiang LI Xiujun LIU Liping ZHU Hongge |
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| Institution: | CHEN Guoqiang1,LI Xiujun2,LIU Liping1,ZHU Hongge2(1.Tongji University,Road Engineering Laboratory,shanghai 200092,China,2.University of Shanghai for Science & Technology,College of City Construction , Environment Engineering,Shanghai 200093,China) |
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| Abstract: | At present,the characteristic of highway traffic is developing gradually to the multi-axis,heavy axle-load,high pressure,with the result that the road structure is easier to produce shear failure.Foam asphalt mixture as a new type of environmentally friendly flexible base materials,its shear performance is researched very little currently.In this paper,we research the shear strength by uniaxial penetration test,focusing on the five factors including aggregate gradation,cement content,asphalt content,curing ... |
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| Keywords: | foam asphalt mixture flexible base uniaxial penetration test shear strength |
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