Laboratory evaluation of foamed warm mix binders and mixtures containing reclaimed asphalt pavements

被引：15

作者：

Liu, Shengjie ^{[1
]}

Zhou, Shengbo ^{[2
]}

Peng, Aihong ^{[3
]}

机构：

[1] Hohai Univ, Coll Civil & Transportat Engn, 1 Xikang Rd, Nanjing 210098, Jiangsu, Peoples R China

[2] Guangxi Key Lab Rd Mat & Struct, Nanning 530007, Guangxi, Peoples R China

[3] Jiangxi Commun Engn Grp Co Ltd, Nanchang 330029, Jiangxi, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 258卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Foamed warm mix asphalt; Reclaimed asphalt pavement; Rheological properties; Pavement performance; PERFORMANCE; MODULUS;

D O I：

10.1016/j.conbuildmat.2020.119773

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Concerns exist regarding whether residual foaming water will be unfavourable for the performance of asphalt and mixtures when foamed warm mix asphalt (FWMA) binders are combined with reclaimed asphalt pavement (RAP). A series of experimental methods was utilised to evaluate the performance of FWMA-RAP binders and mixtures. It was found that the FWMA-RAP binder performance was consistent with that of the mixtures. Foamed asphalts and mixtures exhibited better low-temperature performance and had longer fatigue lives than their unfoamed counterparts did at the same RAP content, but exhibited worse high-temperature performance and lower water stability. The RAP content had a significant influence on the asphalt and mixture performances and appeared to aggravate the effect of asphalt foaming. Foamed asphalt mixtures containing RAP were able to satisfy the standard requirements when the RAP content did not exceed 30%. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：14

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