Moisture resistance of recycled warm-mix asphalt mixture using wax-base additive

Yeongsam Kim; Wonbae Kim; Jongsup Lee; Kwang W. Kim; Sungun Kim

doi:10.22702/jkai.2022.12.1.13

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2022 Vol.12, Issue 1 Preview Page Next Page

Scientific Paper

Moisture resistance of recycled warm-mix asphalt mixture using wax-base additive Wax계 중온화 첨가제 사용에 따른 중온 순환아스팔트 혼합물의 수분저항 특성

18 July 2022. pp. 135-147

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Abstract

In this study, wax-based warm mix additive, modifier, and RAP (reclaimed asphalt pavement) were used to prepare typical and modified recycled warm mix asphalt mixtures. Asphalt mix design was carried out to obtain the optimum asphalt content (OAC) by changing the content of RAP to 15, 30, and 50%. And the specimen was prepared with OAC to evaluate the crack resistance, rutting resistance, and moisture resistance of WMA. It was determined that the warm mix additive used in this study partially rejuvenated the aged binder of RAP and had an effect on the reduction of stiffness, improvement of aging, stripping resistance, and moisture resistance. Furthermore, when applied to the PG 64-22 or PG 76-22 mixture, it was determined that it was necessary to optimize the dosage by the content of RAP.

Keywords

warm mix asphalt

warm mix asphalt additive

high temperature stiffness

rutting resistance

crack resistance

moisture resistance

References

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Information

Publisher :KOREAN ASPHALT INSTITUTE
Publisher(Ko) :한국아스팔트학회
Journal Title :Journal of the Korean Asphalt Institute
Journal Title(Ko) :한국아스팔트학회지
Volume : 12
No :1
Pages :135-147
Received Date : 2022-06-13
Revised Date : 2022-06-28
Accepted Date : 2022-06-28
DOI :https://doi.org/10.22702/jkai.2022.12.1.13

Journal of the Korean Asphalt Institute ISSN:2234-0785(Print) 2635-9553(Online) 한국아스팔트학회지

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