Effect of bitumen fluxing using a bio-origin additive

被引：39

作者：

Krol, Jan B. ^{[1
]}

Kowalski, Karol J. ^{[1
]}

Niczke, Lukasz ^{[2
]}

Radziszewski, Piotr ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Civil Engn, Al Armii Ludowej 16, PL-00637 Warsaw, Poland

[2] Gen Directorate Natl Rd & Motorways, Ul Wierzbowa 6, PL-66004 Zielona Gora, Poland

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 114卷

关键词：

Bitumen flux; Bio-binder; Bioadditive; Warm mix asphalt; Reclaim asphalt pavement; Sustainable roads; RHEOLOGICAL PROPERTIES; OIL; BEHAVIOR; BINDER;

D O I：

10.1016/j.conbuildmat.2016.03.086

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Currently, the bio-binder or bio-origin polymers can be successfully used for bituminous binder modification. Bio-derived oil is also used as a flux additive for binders or as an additive in reclaimed asphalt pavement technology. The main goal of the research was to investigate a new method of bituminous binder fluxing with bioderived additive. In this technology, bioadditive decreases binder viscosity during production processes and then, once asphalt pavement is placed, gradually reconstructs binder viscosity as a result of oxidative polymerization. Based on the Dynamic Shear Rheometer, Ring and Ball tests and fluorescent microscopy, changes in time in biomodified binder were studied. Three binders with various performance grade values with different bioadditive addition were tested. Binders fluxed with bioadditive were conditioned for up to 56 days in order to evaluate oxidative polymerization reaction. Base on the conducted tests it can be stated that vegetable oils and their methyl ester containing polyunsaturated fatty acids can be used as an ecological flux for bituminous binders. As a result of oxypolymerization reaction, partial consistency recovery is possible for bituminous binder with bioadditives. It was found that effectiveness of oxidative polymerization reaction is mainly dependent on bioadditive content and binder performance grade. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：194 / 203

页数：10

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