JOURNAL of the Korean Asphalt Institute Vol. 10, No. 1, 27-36, 2020 https://doi.org/10.22702/jkai.2020.10.1.003 pISSN: 2234-0785 eISSN: 2635-9553 Ⓒ 2020 by Korean Asphalt Institute. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Scientific Paper Analysis of waterborne epoxy modified emulsified asphalt properties & characteristics Pillip Yip 1 , Young Geon Lee 2 * and Tae Soon Park 3 1 General Manager, INOPAVE GROUP PTE LTD. 2 Master’s Course, Seoul National University of Science & Technology Department of Civil Engineering 3 Professor, Seoul National University of Science & Technology Department of Civil Engineering *Corresponding author: Tel. +82-01-5220-0917, E-mail. [email protected] Received: May 28, 2020; Revised: June 10, 2020; Accepted: June 17, 2020 ABSTRACT Using waterborne epoxy as a modifier to modify emulsified asphalt, a study of the changes in the physical properties with different ratio added of waterborne epoxy to the emulsified asphalt，combined with anti-skid composite sealing materials. A double mixture technology. Applying Infrared spectroscopy, DSC heat differential calorimeter, TG thermo gravimetric analysis methods to determine the effectiveness and performances of the waterborne epoxy modified emulsion asphalt. Test results show that when the waterborne epoxy added ratio of 30%, the modified emulsion asphalt significantly improved in hardness, adhesion, peeling & pulling strength, low temperature flexibility, heat and frost resistance. The Infrared spectroscopy shown the waterborne epoxy and the emulsified asphalt ideally composite hybridization. This paper base on a section of the Heyu Highway surface maintenance project further evaluate the benefits of waterborne epoxy modified emulsion asphalt acting as anti-skid composite sealing coating. Keywords: Waterborne epoxy, modified emulsion asphalt, anti-skid composite seal 1. Introduction Emulsified asphalt has been widely in use globally for pavement maintenances with different technologies such as fog seal, slurry seal, micro surface seal etc. Having the great benefits in environmental friendly, energy saving, convenient work process and more. However, general emulsified asphalt having disadvantages characteristics of low bonding strength, poor performance with high and low temperatures, insufficient strength, rapid aging and instability. Therefore an urgent needs to resolve the adhesion strength, stability and high/low temperature performances of the modified emulsified asphalt.
Analysis of waterborne epoxy modified emulsified asphalt properties & characteristics
Apr 28, 2023
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