期刊
CASE STUDIES IN CONSTRUCTION MATERIALS
卷 11, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cscm.2019.e00276
关键词
Crumb rubber modifier; Asphalt binder; Rhelogical properties; Analytical hiarchy process
资金
- UNLV libraries
Crumb rubber modifier (CRM) is one of the most popular asphalt binder modifiers due to the economic benefits and desired physical and rheological properties of asphalt binders and asphalt mixes. This research focuses on evaluating the properties of rubber-modified asphalt binders and selecting the best modified binder. The modified binders were produced by blending virgin binders with CRM at various contents of different gradations, and different methods of grinding. CRM made through ambient and cryogenic grinding methods with two gradation sizes were produced and tested. Three different virgin binders from two sources were obtained and used. The Analytic Hierarchy Process (AHP) method was used to determine the best combination of virgin binder and CRM, based on the rheological properties and their importance in Nevada's construction code. Based on AHP analysis, ambient CRM obtained the highest priority. CRM contents of 10% and 15% were ranked higher than 20% depending on the grade of the virgin binder. Both mesh 20 and 40 CRM sizes were favorable. (C) 2019 The Author(s). Published by Elsevier Ltd.
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