|Table of Contents|

Influence of chlorine salt snow-melting agent on road performance of asphalt binder(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2014年04期
Page:
7-13
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Influence of chlorine salt snow-melting agent on road performance of asphalt binder
Author(s):
WEI Jian-guo1 FU Guang-wen2 FU Qi-lin1
1. School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410004, Hunan, China; 2. Guangdong Hualu Transprot Technology Co., Ltd., Guangzhou 510420, Guangdong, China
Keywords:
road material snow-melting agent chlorine salt asphalt binder road performance infrared spectrum
PACS:
U414.75
DOI:
-
Abstract:
The asphalt specimens were made by using base asphalt, SBS modified asphalt, NaCl and CaCl2 snow-melting agents. The high temperature property, low temperature property, temperature sensitivity, anti-aging property and infrared spectrum of asphalt soaked by chlorine salt snow-melting agent were studied based on the test methods of softening point, penetration, ductility, viscosity and infrared spectrum. The influence of chlorine salt snow-melting agent on asphalt binder road performance and the erosion mechanism were revealed. Analysis result shows that chlorine salt snow-melting agent improves the high temperature property of base asphalt and reduces the high temperature property of SBS modified asphalt; it lowers the temperature sensitivity of base asphalt and enhances the temperature sensitivity of SBS modified asphalt; it reduces the low temperature property of asphalt, but improves the anti-aging property. CaCl2snow-melting agent has more significant impact on the road performance of base asphalt, and NaCl snow-melting agent has more significant impact on the road performance of SBS modified asphalt. The snow-melting agent does not react with asphalt, and the molecular structure or functional group of asphalt soaked by snow-melting agent is not changed. 8 tabs, 7 figs, 20 refs.

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Last Update: 2014-08-30