Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/62077
Title: Thermal analysis on the component interaction of asphalt binders modified with crumb rubber and warm mix additives
Authors: Yu, H
Leng, Z 
Gao, Z
Keywords: Asphalt rubber
Interaction mechanism
Thermal analysis
Warm mix additive
Issue Date: 2016
Publisher: Elsevier
Source: Construction and building materials, 2016, v. 125, p. 168-174 How to cite?
Journal: Construction and building materials 
Abstract: This study investigated the interaction among different components of asphalt binders collectively modified with crumb rubber and warm mix additives through thermal gravimetric analysis (TGA) and differential scanning calorimeter (DSC) testing. The modified binders were divided into two parts for analysis purpose, namely the extracted crumb rubber modifier (CRM) by removing all asphalt components and the separated binder system by removing insoluble CRM particles. The main findings of this study include that: (1) the interaction between CRM and base asphalt was a component exchange process, i.e., natural rubber and styrene-butadiene rubber were released from CRM and blended with asphalt molecules; (2) wax-based warm mix additives penetrated into CRM during the mixing process; (3) the incorporation of warm mix additives especially the wax-based additives, promoted the component exchange between rubber and asphalt.
URI: http://hdl.handle.net/10397/62077
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2016.08.032
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