[1]孙璐,辛宪涛,任皎龙.纳米改性沥青混合料路用性能[J].东南大学学报(自然科学版),2013,43(4):873-876.[doi:10.3969/j.issn.1001-0505.2013.04.037]
　Sun Lu,Xin Xiantao,Ren Jiaolong.Pavement performance of nanomaterial modified asphalt mixture[J].Journal of Southeast University (Natural Science Edition),2013,43(4):873-876.[doi:10.3969/j.issn.1001-0505.2013.04.037]
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纳米改性沥青混合料路用性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第4期
页码:
873-876
栏目:
交通运输工程
出版日期:
2013-07-20

文章信息/Info

Title:
Pavement performance of nanomaterial modified asphalt mixture
作者:
孙璐1; 2; 辛宪涛1; 任皎龙1
1东南大学交通学院, 南京 210096; 2美国天主教大学土木工程系, 华盛顿 20064
Author(s):
Sun Lu1; 2;  Xin Xiantao1;  Ren Jiaolong1
1School of Transportation, Southeast University, Nanjing 210096, China
2Department of Civil Engineering, The Catholic University of America, Washington DC 20064, USA
关键词:
道路工程;  沥青混合料;  纳米材料;  路用性能
Keywords:
road engineering;  asphalt mixture;  nanomaterial;  pavement performance
分类号:
U414
DOI:
10.3969/j.issn.1001-0505.2013.04.037
摘要:
通过室内试验研究了纳米SiO2改性沥青混合料、膨润土改性沥青混合料、纳米SiO2/膨润土复合改性沥青混合料、纳米SiO2/膨润土/SBS复合改性沥青混合料的高温稳定性、低温抗裂性和水稳定性,并与基质沥青混合料和SBS改性沥青混合料进行对比.结果表明,纳米SiO2改性沥青混合料、膨润土改性沥青混合料、纳米SiO2/膨润土复合改性沥青混合料的高温稳定性较基质沥青提高了56%~77%,水稳定性提高了3%~7%,与SBS改性沥青相比则相差不大.其中,纳米SiO2/膨润土/SBS复合改性沥青混合料的高温稳定性和水稳定性最优,较SBS改性沥青分别提高86%和3%.纳米SiO2改性沥青混合料、膨润土改性沥青混合料和纳米SiO2/膨润土复合改性沥青混合料的低温抗裂性较基质沥青略有降低,但仍能满足沥青路面对低温抗裂性能的要求.因此,纳米改性沥青混合料具有优良的路用性能,可适用于沥青改性技术中.
Abstract:
The high temperature stability, the low temperature crack resistance and the water stability of nano-SiO2 modified asphalt mixture, bentonite modified asphalt mixture, nano-SiO2/bentonite complex modified asphalt mixture and nano-SiO2/bentonite/SBS complex modified asphalt mixture are studied by laboratory experiments in comparison with matrix asphalt mixture and SBS modified asphalt. The results show that compared with matrix asphalt mixture, the high temperature stability and the water stability of nano-SiO2 modified asphalt mixture, bentonite modified asphalt mixture and nano-SiO2/bentonite complex modified asphalt mixture increase 56% to 77% and 3% to 7%, respectively, while there are no obvious differences when compared with SBS modified asphalt mixture. The high temperature stability and the water stability of nano-SiO2/bentonite/SBS complex modified asphalt mixture are the highest in the six kinds of asphalt, and they are 86% and 3% higher than those of SBS modified asphalt mixture respectively. The low temperature performance of nano-SiO2 modified asphalt mixture, bentonite modified asphalt mixture and nano-SiO2/bentonite complex modified asphalt mixture decreases slightly, but it still satisfies the requirement of the low temperature crack resistance on asphalt pavement. Therefore, the nanomaterial modified asphalt mixture has excellent pavement performance and it is suitable for the application of asphalt modified technology.

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备注/Memo

备注/Memo:
作者简介: 孙璐(1972—),男,博士,教授,博士生导师,sunl@cua.edu.
基金项目: 教育部霍英东基金资助项目(114024)、交通运输部西部交通建设科技资助项目(0901005C)、美国国家自然科学基金资助项目(CMMI-0644552)、江苏省自然科学基金重点资助项目(DK2009015).
引文格式: 孙璐,辛宪涛,任皎龙.纳米改性沥青混合料路用性能［J］.东南大学学报:自然科学版,2013,43(4):873-876. ［doi:10.3969/j.issn.1001-0505.2013.04.037］
更新日期/Last Update: 2013-07-20