Open AccessEffects Analysis of Super Surfacing Pavement Performance Using Epoxy Modified Emulsified Asphalt as Bonding Layer
Author(s) -
Xiang Wen,
Manni Huang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/744/1/012013
Subject(s) - asphalt , epoxy , materials science , gradation , composite material , cohesion (chemistry) , computer science , chemistry , organic chemistry , computer vision
A large number of studies have shown that emulsified epoxy asphalt has good cohesion and is an ideal choice for road surface treatment technology. However, after emulsification, epoxy resin needs to be emulsified and modified in a very special way to form a good combination with other structural layers in different binders. Based on super surfacing treatment technology, the combination of epoxy resin emulsification and different emulsification modification methods was discussed. Referring to the latest precision design, three bonding methods were used to bond the surface and the underlying layer. That is, no bonding layer, emulsified asphalt bonding layer and epoxy emulsified asphalt bonding layer. The pavement performance comparison test of super surface asphalt mixture was carried out. SBR-A modified emulsified asphalt and SBR-B modified emulsified asphalt were selected as the most commonly used fine surface binder. After comprehensive mix proportion design, three key indicators of wear resistance, water damage resistance and skid resistance are selected to evaluate road performance. The test process and research results show that the epoxy emulsified asphalt binder has excellent pavement performance under the design of test gradation, and has good compatibility with SBR-A modified emulsified asphalt.