| 集料衰变规律及机理 |
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| 引用本文： | 王真,黄晓明,赵永利.集料衰变规律及机理[J].东南大学学报(自然科学版),2011,41(5):1092-1097. |
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| 作者姓名： | 王真 黄晓明 赵永利 |
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| 作者单位： | 东南大学交通学院,南京,210096 |
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| 基金项目： | 交通部西部交通建设科技资助项目(200831800044) |
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| 摘 要： | 为了研究集料的衰变机理及规律,为热再生混合料的级配恢复打下基础,通过旋转压实试验来模拟不同级配的集料破碎情况,结合集料受力模型分析集料的衰变机理及规律.试验结果表明:旋转次数对集料破碎影响不大,破碎在试验初期已经完成;连续级配的破碎程度明显小于骨架级配,但会形成较多的细集料;4.750 mm颗粒是稳定的受力点和粗细集料...
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| 关 键 词： | 集料破碎 旋转压实 骨架结构 粒径 |
Rules and mechanism of aggregates fragmentation |
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| Wang Zhen,Huang Xiaoming,Zhao Yongli.Rules and mechanism of aggregates fragmentation[J].Journal of Southeast University(Natural Science Edition),2011,41(5):1092-1097. |
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| Authors: | Wang Zhen Huang Xiaoming Zhao Yongli |
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| Institution: | Wang Zhen Huang Xiaoming Zhao Yongli(School of Transportation,Southeast University,Nanjing 210096,China) |
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| Abstract: | The rule and mechanism of aggregates crushing are studied to lay a foundation for hot recycling of asphalt mixture.Gyratory compaction tests were taken to simulate aggregates crushing,and the force model of aggregates was used to analyze the mechanism of aggregates crushing.The test results show that the times of gyratory compaction have little influence on aggregates crushing since the aggregates are broken at the initial period.The fragmentation degree of aggregates with continuous gradation is lower than... |
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| Keywords: | aggregates fragmentation gyratory compaction framework structure aggregate size |
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