期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 53, 期 -, 页码 324-332出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2013.11.087
关键词
Asphalt; Additive; Soybean; Fatty acids; Characterization
资金
- Indiana Soybean Alliance
This investigation examines theological properties of asphalts blended with soybean acidulated soapstock, a relatively low-cost and highly concentrated source of soybean fatty acids. Rheological tests indicate that as soybean acidulated soapstock is added, binders become softer, less stiff and their high temperature viscosities are reduced. The addition of 1% soybean acidulated soapstock reduces thermal stress accumulation. These findings suggest that soybean acidulated soapstock could be used as a fluxing agent (i.e., consistency reducer) for stiff, hard and viscous asphalt binders, increasing their workability and may improve low temperature performance of an asphalt binder by reducing thermal stress development. (C) 2013 Elsevier Ltd. All rights reserved.
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