contributor author | Yongjie Ding | |
contributor author | Boming Tang | |
contributor author | Yuzhen Zhang | |
contributor author | Jianming Wei | |
contributor author | Xuejuan Cao | |
date accessioned | 2017-05-08T22:17:33Z | |
date available | 2017-05-08T22:17:33Z | |
date copyright | August 2015 | |
date issued | 2015 | |
identifier other | 40120944.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/76452 | |
description abstract | Styrene-butadiene-styrene (SBS) modified asphalt has been used in many road projects for its good performance at high and low temperatures. However, there was no final conclusion whether SBS could change the chemical structure of asphalt binders. The objective of this study was to analyze the impact of SBS on the molecular agglomeration behavior of asphalt binders by means of molecular simulation techniques. Two types of modifiers (SBS, MAH-g-SBS) were added into two asphalt models. Results of simulation show that three types of SBS all have impact on the molecular agglomeration behavior of asphalt binders. The impact of modifiers is largely dependent on the molecular structure of asphaltenes. The molecular agglomeration of asphalt with longer asphaltene alkane side branches is more regular. The agglomeration structure of asphalt molecules is more susceptible to SBS when the asphaltene alkane side branches are longer. The difference of influence on asphalt binders among two types of SBS is small. | |
publisher | American Society of Civil Engineers | |
title | Molecular Dynamics Simulation to Investigate the Influence of SBS on Molecular Agglomeration Behavior of Asphalt | |
type | Journal Paper | |
journal volume | 27 | |
journal issue | 8 | |
journal title | Journal of Materials in Civil Engineering | |
identifier doi | 10.1061/(ASCE)MT.1943-5533.0000998 | |
tree | Journal of Materials in Civil Engineering:;2015:;Volume ( 027 ):;issue: 008 | |
contenttype | Fulltext | |