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Title |
A Study on the Effects of Types of Emulsifier on Cold Recycle Emulsified Asphalt Concrete
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Authors |
박태순(Tae Soon Park) ; 강일환(Il Hwan Kang) ; 권태환(Tae Howan Kwoun) |
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DOI |
https://doi.org/10.4334/JKCI.2022.34.6.689 |
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Keywords |
상온 재생 유화 아스팔트 콘크리트; 재생골재; 유화 아스팔트; 유화제 cold-mix recycled emulsified asphalt concrete; RAP; emulsified asphalt; emulsifiers |
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Abstract |
Cold recycle emulsified asphalt concrete mixture (CREM) is an eco-friendly paving material manufactured using emulsified asphalt and recycled aggregate. This study set out to examine the effects of four different types of emulsified asphalt concretes. Two types of cationic emulsified asphalts, one type of anionic emulsified asphalt, and one kind of nonionic emulsified asphalt were used. Each emulsified asphalt was evaluated and compared using the Marshall stability, flow value, air void, indirect tensile strength (ITS), tensile strength ratio (TSR), and dynamic stability. The results of the tests showed that the different types of emulsified asphalt concretes had different performance characteristics, and the nonionic type of cold mix emulsified asphalt concrete showed better results in terms of Marshall stability, ITS, and TSR. The effect on the inclusion of cement also appeared to be more significant when it was mixed with nonionic emulsifier asphalt concrete.
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