| KSH系列温拌沥青混合料性能研究 |
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| 引用本文： | 王春,郝培文,李瑞霞,杨凯.KSH系列温拌沥青混合料性能研究[J].武汉理工大学学报,2011(7):47-50,82. |
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| 作者姓名： | 王春 郝培文 李瑞霞 杨凯 |
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| 作者单位： | 长安大学特殊地区公路工程教育部重点实验室; |
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| 基金项目： | 国家自然科学基金(50578016) |
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| 摘 要： | 通过对添加不同温拌机理的KSH系列温拌剂的沥青混合料进行试验研究,对比分析了其在水稳定性、高温稳定性、低温抗裂性能等方面与相同级配热拌沥青混合料的差异,发现即使温拌沥青混合料60℃马歇尔稳定度达不到8kN,其残留稳定度、冻融劈裂强度比、动稳定度、低温弯曲破坏应变等亦可达到甚至超过同条件热拌沥青混合料的相应指标,说明在使用基质沥青时要求温拌沥青混合料的稳定度达到8kN是不合理的,添加KSH系列温拌剂的混合料可以满足热拌沥青混合料的路用性能要求。
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| 关 键 词： | 温拌机理 KSH系列温拌剂 温拌沥青混合料 热拌沥青混合料 路用性能 |
Study on the Performance of Warm Mix Asphalt with KSH Additives |
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| WANG Chun,HAO Pei-wen,LI Rui-xia,YANG Kai.Study on the Performance of Warm Mix Asphalt with KSH Additives[J].Journal of Wuhan University of Technology,2011(7):47-50,82. |
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| Authors: | WANG Chun HAO Pei-wen LI Rui-xia YANG Kai |
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| Affiliation: | WANG Chun,HAO Pei-wen,LI Rui-xia,YANG Kai(Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang'an University,Xi'an 710064,China) |
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| Abstract: | The paper compared differences of water stability,high temperature stability,low temperature cracking resistance performance between warm mix asphalt adding different mechanism of KSH additives and the same grade of hot mix asphalt through the test of asphalt mixture.It is found that residual stability,freeze-thaw splitting intensity ratio,dynamic stability and low temperature bending breakdown strain can meet or exceed the corresponding indicators of hot mix asphalt,even the 60 ℃ Marshall stability of warm mix asphalt can not reach 8 kN.This indicates that the require of the stability of warm mix asphalt to reach 8 kN is unreasonable when using asphalt not modified.The road performance of warm mix asphalt,adding KSH additives,could meet the standard requirements of hot mix asphalt. |
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| Keywords: | mechanism of warm mix series of KSH warm mix additives warm mix asphalt hot mix asphalt pavement performance |
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