Connections between chemical composition and rheology of aged base asphalt binders during repeated freeze-thaw cycles

doi:10.1016/j.conbuildmat.2017.10.097

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Connections between chemical composition and rheology of aged base asphalt binders during repeated freeze-thaw cycles
	Nian, Tengfei 2; Li, Ping 1,2; Mao, Yu 2; Zhang, Guohong 3; Liu, Yang 2
刊名	CONSTRUCTION AND BUILDING MATERIALS
	2018-01-20
卷号	159 页码:338-350
关键词	Base asphalts Freeze-thaw cycles Fourier transform infrared spectroscopy Dynamic shear rheological Cross-correlation analysis
ISSN号	0950-0618
DOI	10.1016/j.conbuildmat.2017.10.097
英文摘要	The chemical composition and rheological properties of asphalt binder play a key role in the performance of the asphalt pavement. However, pavement diseases (cracks, pitted surface, potholes and slurry) caused by the degradation of pavement performance have shortened the service life of the asphalt pavement and increased maintenance and repair costs, seriously affected the smooth flow of traffic and traffic safety. In this study, the sum of the different absorption peak areas of the asphalt binder spectroscopy was selected as a reference. Fourier Transform Infrared Spectroscopy (FT-IR) quantitative analysis was carried out on the Rolling Thin Film Oven (RTFO) test with different aging cycles and Pressure Aging Vessel (PAV) test of the asphalt binder after aging. Based on the above analysis, the author tries to establish a reliable FT-IR quantitative analysis method. An FT-IR specimen which could be subjected to multiple freeze-thaw cycles could be prepared by the self-designed test sample preparation device. By carrying out the freeze-thaw cycle aging test of asphalt binder for 0, 3, 6, 9, 12, 15 and 18 times, combining FT-IR and Dynamic Shear Rheological (DSR) testing techniques, the author explored the relationship between chemical composition and rheological performance parameters of asphalt binder in cold region, which were based on the Levenberg-Macquarie method and test data of universal global optimization algorithm regression analysis. The results show that FT-IR can not only qualitatively analyze and study the structure and chemical composition of asphalt binder before and after aging on a micro level, but also quantitatively represent the changes of characteristic functional groups before and after aging of asphalt binder. It is feasible to calculate the absorption peak area for FT-IR quantitative analysis using the tangent at the lowest point on both sides of the spectral absorption peak as the calibration baseline. It is recommended to use the range of 2000-650 cm(-1) absorption peak area sum as a benchmark for FT-IR quantitative analysis. The complex shear modulus of the asphalt binder shows a linear growth with the increase of freeze thaw cycles, and phase angle of asphalt binder also shows a linear growth with the increase of Ln T. There is a multivariate linear relationship between the rheological index and chemical functional groups after the aging freeze-thaw cycle. (C) 2017 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[51668041][51108222] ; Science and Technology Support Project in Gansu Province[1504GKCA031]
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000423643200033
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32827]
专题	土木工程学院
通讯作者	Li, Ping
作者单位	1.Lanzhou Univ Technol, Western Ctr Disaster Mitigat Civil Engn, Minist Educ, Lanzhou, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Gansu, Peoples R China 3.Gansu Prov Transportat Planning Survey & Design, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Nian, Tengfei,Li, Ping,Mao, Yu,et al. Connections between chemical composition and rheology of aged base asphalt binders during repeated freeze-thaw cycles[J]. CONSTRUCTION AND BUILDING MATERIALS,2018,159:338-350.
APA	Nian, Tengfei,Li, Ping,Mao, Yu,Zhang, Guohong,&Liu, Yang.(2018).Connections between chemical composition and rheology of aged base asphalt binders during repeated freeze-thaw cycles.CONSTRUCTION AND BUILDING MATERIALS,159,338-350.
MLA	Nian, Tengfei,et al."Connections between chemical composition and rheology of aged base asphalt binders during repeated freeze-thaw cycles".CONSTRUCTION AND BUILDING MATERIALS 159(2018):338-350.