Performance properties of CRM binders with wax warm additives

被引：28

作者：

Kim, Hyunhwan ^{[1
]}

Jeong, Kyu-Dong ^{[2
]}

Lee, Moon Sup ^{[2
]}

Lee, Soon-Jae ^{[1
]}

机构：

[1] SW Texas State Univ, San Marcos, TX 78666 USA

[2] Korea Inst Construct Technol, Goyang 411712, Gyeonggi, South Korea

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 66卷

关键词：

Crumb rubber; Wax additive; Viscosity; Rutting; Stiffness;

D O I：

10.1016/j.conbuildmat.2014.05.052

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Rheological properties of crumb rubber modified (CRM) binder with wax warm additive were evaluated at high, intermediate and low temperatures. CRM binders were blended using two wax additives and then artificially short-term and long-term aged using the rolling thin film oven (RTFO) and pressure aging vessel (PAV) procedures. Superpave binder tests were carried out on the binders through the rotational viscometer (RV), the dynamic shear rheometer (DSR), and the bending beam rheometer (BBR). In general, the results of this study indicated that (1) the wax additives into asphalt binder obviously decrease the viscosity; (2) the addition of wax additives is effective to improve the rheological properties of asphalt binder in high-temperature; (3) the use of crumb rubber positively influenced rutting and cracking properties; (4) the addition of LEADCAP showed the improvement of thermal cracking resistance in low-temperature. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：356 / 360

页数：5

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[2]

[Anonymous], 2007, MAIREPAV5 P PARK CIT

[3]

Bahia H., 1994, Journal of the Association of Asphalt Paving Technologists, V63, P414

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