A New Approach for Evaluating Rejuvenator Diffusing into Aged Bitumen

武汉理工大学学报-材料科学版(英文版), 2011, 26(1): 43-46. doi: 10.1007/s11595-011-0164-x

^1, , ^2, , ^3, , ^4, , ^5,

1.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

2.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

3.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

4.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

5.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

基金项目: Hubei Provincial Highway Administration Bureau Hubei Provincial Science and Technology Department(2009CDA053) the Ministry of Science and Technology of China(2010DFA82490)

A New Approach for Evaluating Rejuvenator Diffusing into Aged Bitumen

KUANG Dongliang ^1, , FENG Zhengang ^2, , YU Jianying ^3, , CHEN Xing ^4, , ZHOU Bo ^5,

1.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

2.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

3.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

4.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

5.Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University of Technology, Wuhan 430070, China

Keywords： bitumen

Rejuvenator diffusing into aged bitumen was evaluated by determining penetration and chemical components of aged bitumen with rejuvenator coat before and after diffusing experiment.Effects of temperature, time and viscosity of rejuvenator on the diffusing ability of rejuvenator into aged bitumen were investigated. Results indicated that the diffusing ability of rejuvenator into aged bitumen could be enhanced with the increasing of temperature and time, however, the diffusing of rejuvenator into aged bitumen would be restricted due to the volatilization of light component and aging of rejuvenator under high temperature (over 170 ℃). Rejuvenator with low viscosity diffused into aged bitumen more easily.

参考文献

[1]	Romera R;Santamaria A;Pena JJ;Munoz ME;Barral M;Garcia E;Janez V .Rheological aspects of the rejuvenation of aged bitumen[J].Rheologica Acta: An International Journal of Rheology,2006(4):474-478.
[2]	Junan Shen;Serji Amirkhanian;Jennifer Aune Miller .Effects of Rejuvenating Agents on Superpave Mixtures Containing Reclaimed Asphalt Pavement[J].Journal of Materials in Civil Engineering,2007(5):376-384.
[3]	JUNAN SHEN;SERJI AMIRKHANIAN;SOON-JAE LEE .The effects of rejuvenating agents on recycled aged CRM binders[J].The international journal of pavement engineering,2005(4):273-279.

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A New Approach for Evaluating Rejuvenator Diffusing into Aged Bitumen

参考文献