首页>>文献首页>>文献正文

Effects of Sasobit/Deurex on amorphous poly alpha olefin (APAO) modified asphalt binder

yankezhen 添加于 2017/12/23 19:26:51  189次阅读 | 0次推荐 | 0个评论

The purpose of this study aims at investigating the effect of warm-mix additive Sasobit/Deurex on properties of APAO modified asphalt binder (AMB). The physical properties were measured through penetration,softening point and ductility tests. Besides, rotational viscosity (RV), dynamic shear rheometer (DSR) and bending beam rheometer (BBR) test were utilized to determine the rheological characteristics of warm-mix asphalt binders before and after aging. Fourier transform infrared spectroscopy (FTIR) test was used to describe the chemical characteristics of Sasobit/Deurex warm-mixed APAO modified asphalt binder (AMB). The results showed that incorporation of Sasobit/Deurex into AMB could effectively reduce the viscosity and exert a distinct modification on high temperature performance of asphalt binders in terms of reduced penetration, increased softening point and decreased ductility. Dynamic shear rheometer (DSR) test showed that warm-mix asphalt had bigger complex modulus and smaller phase angle than blank AMB. Bending beam rheometer (BBR) test indicated that minor addition of Deurex (2%) have improved the low temperature rheological performance of AMB while Sasobit had negative effect on it. Moreover, the FTIR analysis showed that chemical reactions might happen during the mixing of Sasobit/Deurex with AMB. In overall consideration, 4% Sasobit and 2% Deurex were optimal dosages for the AMB in this experiment concerning the rheological characteristics, construction workability and economic benefits.

作 者:Xiaowen Zhao, Kezhen Yan , Weili He, Cong Cai
期刊名称: Construction and Building Materials
期卷页: 2017-08-05 第Vol.154卷 第期 323-330页
学科领域:工程材料 » 建筑环境与结构工程 » 交通工程
添加人是否为作者:
原文链接:https://www.researchgate.net/publication/318935780_Effects_of_SasobitDeurex_on_amorphous_poly_alpha_olefin_APAO_modified_asphalt_binder
DOI: 10.1016/j.conbuildmat.2017.07.234
ISBN: 0950-0618
关键词: Warm-mixed asphalt; Amorphous poly alpha olefin; Sasobit/Deurex; Physical properties; Rheological characteristic; FTIR
全文地址: 下载
备 注:
文献笔记

 
导出选项:

评论 (0 个评论)

Page 1 of 1
<<<[1]>>>

举报 | Archiver | 科学网( 京ICP备07017567 )

GMT+8, 2011-2-15 11:31

Powered by ScienceNet.cn

Copyright © 2007- 科学时报社