Study on the Performance of Cold-Recycling Asphalt Mixture Influenced by Activity Sites of Lignin via Chemical Analysis

被引：5

作者：

Chen, Xiang ^{[1
,2
]}

Liu, Jie ^{[1
,2
]}

Lin, Juntao ^{[1
,2
]}

Hong, Jinxiang ^{[1
,2
]}

机构：

[1] Jiangsu Res Inst Bldg Sci, State Key Lab High Performance Civil Engn Mat, Nanjing 211103, Jiangsu, Peoples R China

[2] Jiangsu Bote New Mat Co Ltd, Nanjing 211103, Jiangsu, Peoples R China

来源：

JOURNAL OF TESTING AND EVALUATION | 2016年 / 44卷 / 01期

关键词：

lignin; activity site; gas chromatograph; gel permeation chromatography; cold recycling; bitumen emulsion; STRAW;

D O I：

10.1520/JTE20140404

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Gas chromatograph (GC) and gel permeation chromatography (GPC) were used to investigate the activity sites of lignin, which influence the emulsifiability of emulsifier and mixing performance of cold-recycling asphalt mixture obviously, in this paper. It was found that the emulsifier A prepared by lignin A showed the highest activity in emulsifiability and mixing performance, which was due to its 9.48 activity sites on average. Moreover, emulsifier B synthesized by lignin B exhibited a lower activity on emulsifiability and mixing performance than that of lignin A, which was because lignin B had 7.68 activity sites. However, the mixing performance of emulsifier C could not satisfy the technical specifications for highway asphalt pavement recycling, which was attributed to its 4.42 activity sites only. The synthetic route of this emulsifier was simple and its performances used in cold-recycling were excellent; as such, this kind of emulsifier could have a promising application in the future.

引用

页码：498 / 506

页数：9

共 23 条

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