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2021 Vol.11, Issue 2 Preview Page
Evaluation of applicability of warm mix modified SMA asphalt concrete using polyamide wax additive

폴리아미드계 왁스를 사용한 중온 개질 SMA 포장의 적용성 평가

ShinHaeng Jo1*
,
KyongNam Kim2
,
WenHui Cui3
,
SooHyoung Lee4
,
DongYeon Kim5
조 신행1*
,
김 경남2
,
최 문혜3
,
이 수형4
,
김 동연5
1Director, ShinchangENC Co., Ltd. (Ph.D)
2Post Doctor Course, Department of Civil Engineering, Kyonggi University (Ph.D)
3Master Course, Department of Civil Engineering, Kyonggi University
4Senior Researcher, Korea Institute of Civil Engineering and Building Technology (Ph.D)
5CEO, Samduksac Co., LTD.
1(주)신창이엔씨 이사(박사)
2경기대학교 토목공학과 박사후연구원(박사)
3경기대학교 토목공학과 석사과정
4한국건설기술연구원 수석연구원(박사)
5(주)삼덕특수아스콘 대표이사
*Corresponding Author
31 December 2021. pp. 215-223
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Abstract

This study evaluated the field application and laboratory performance of warm-mix polymer modified asphalt (WPSMA) as an eco-friendly construction technology. The rotational viscosity of warm-mix polymer modified asphalt binder is lower than that of straight asphalt binder, so it was applicable to warm-mix asphalt mixture. The performance grade is PG 76-22, which satisfies the specification of the modified asphalt binder. The compaction ratio of WPSMA asphalt concrete compacted at 125 degree was 0.998, and all of the quality standards of specification were satisfied. The dynamic stability was measured to be greater than 5,000 times/mm, indicating that permanent deformation resistance was excellent. It has been verified in the field that production and construction are possible even at warm-mix temperature by test construction. It was analyzed that WPSMA can obtain a benefit of about 6,000 won/ton through fuel consumption reduction and greenhouse gas emission reduction compared to PSMA asphalt mixture.

Keywords
warm-mix asphalt
PSMA
mixing temperature
compaction ratio
References
1
Han, S.H. (2019). Mechanical properties and long-term performance evaluation of additive injection type warm-mix asphalt (WMA), MS thesis, Kyunghee University.
2
Jang, J.H. (2020). A study on performance of warm mix recycled asphalt mixture using TDAE and PE wax, MS thesis, Incheon National University.
3
Ministry of Environment & Korea Environmental Industry & Technology Institute (ME &KEITI) (2015). Information of certification product for carbon footprint label, ME & KEITI.
4
Ministry of Land, Infrastructure and Tranportation (MLIT) (2017). Guidelines for investment evaluation of transportation facility, MLIT.
5
Ministry of Land, Infrastructure and Transport (MLIT) (2021). Guidelines for asphalt concrete pavement construction, MLIT.
6
Park, H.Y., Lee, J.H., Yoon, Y.M, Park, J.Y. and Kim, H.B. (2020). “Study on the performance characteristics of asphalt pavement using expressway long-term pavement performance data”, Int. J. Highw. Eng., 22(3), pp. 49-57. 10.7855/IJHE.2020.22.3.049
7
Roberts, F.L., Kandhal, P.S., Brown, E.R., Lee, D.Y. and Kennedy, T.W. (1996). Hot mix asphalt materials, mixture design, and construction, NAPA Education Foundation.
Information
  • Publisher :KOREAN ASPHALT INSTITUTE
  • Publisher(Ko) :한국아스팔트학회
  • Journal Title :Journal of the Korean Asphalt Institute
  • Journal Title(Ko) :한국아스팔트학회지
  • Volume : 11
  • No :2
  • Pages :215-223
  • Received Date : 2021-12-03
  • Revised Date : 2021-12-11
  • Accepted Date : 2021-12-18
  • DOI :https://doi.org/10.22702/jkai.2021.11.2.18
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