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| 反复冻融条件下沥青混合料的间接拉伸试验研究 | |
| 引用本文： | 张洪刚,黄慧,钱国平. 反复冻融条件下沥青混合料的间接拉伸试验研究[J]. 公路, 2012, 0(4): 185-188 |
| 作者姓名： | 张洪刚 黄慧 钱国平 |
| 作者单位： | 1. 广西交通科学研究院 南宁市530007;广西道路结构与材料重点实验室培育基地 南宁市530007 2. 广西公路技工学校 南宁市530023 3. 长沙理工大学 长沙市410076 |
| 摘 要： | 当遭遇突变天气如低温冰雪时,路面材料长时间处于有水、低温冰冻状态及温度交替变化过程中,由于水分和温度共同作用引起的道路冻融损坏现象较为普遍。通过在室内模拟水温冻融环境,对多次冻融后的沥青混合料进行了间接拉伸类试验(劈裂试验),通过试验分析了水温冻融条件下沥青混合料的劈裂强度、冻融劈裂强度、劈裂疲劳性能的变化规律。结果表明,沥青混合料的强度、水稳定性、疲劳性能随反复冻融衰减明显。 |
| 关 键 词： | 沥青混合料 多次冻融 间接拉伸 冻融劈裂 劈裂疲劳 性能衰变 |
A Study on Indirect Tensile Test of Asphalt Mixtures Under Repeated Freezing and Thawing |
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| ZHANG Hong-gang , HUANG Hui , QIAN Guo-ping. A Study on Indirect Tensile Test of Asphalt Mixtures Under Repeated Freezing and Thawing[J]. Highway, 2012, 0(4): 185-188 | |
| Authors: | ZHANG Hong-gang HUANG Hui QIAN Guo-ping |
| Affiliation: | 1.Guangxi Communication Science and Research Institute,Nanning 530007,China; 2.Guangxi Highway Technical School;Nanning 530023,China; 3.Changsha University of Science and Technology,Changsha 410076,China; 4.Guangxi Key Laboratory of Road Structure and Materials,Nanning 530007,China) |
| Abstract: | Freeze-thaw damage to roads is more prevalent,due to interaction of moisture and temperature caused when the surface material soaked in water,low temperature frozen and alternated for a long time,The variation of indirect tensile strength,freeze-thaw splitting strength and indirect tensile fatigue performance of asphalt mixtures in the water freezing and thawing conditions are analyzed through the indirect tensile test on asphalt mixture after multiple freeze-thaw cycles,The results show that strength,water stability,fatigue are significantly attenuated with repeated freezing and thawing of asphalt mixtures. |
| Keywords: | asphalt mixture multiple freeze-thaw cycles indirect tensile freeze-thaw split splitting fatigue performance decay |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |