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2024 Vol.13, Issue 2 Preview Page

Scientific Paper

A study of asphalt mixture self-healing properties by using microwave irradiation in laboratory

마이크로웨이브를 이용한 아스팔트 혼합물 자가회복 특성 실내 연구

Sungun Kim1*
,
Kwangwoo Kim2
,
Unkyu Jeong3
김 성운1*
,
김 광우2
,
정 운규3
1Ph.D, Director, WOOHAENG Engineering & Construction Corporation
2Professor Emeritus, Regional Infrastructure Engineering, Kangwon National University
3Chief Executive Officer, FineKOWAK Corporation
1(주)우행이앤씨 공학박사(이사)
2강원대학교 지역건설공학과 공학박사(명예교수)
3(주)화인코왁 대표이사
*Corresponding Author
17 January 2024. pp. 262-268
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Abstract

Asphalt has the characteristic of changing phases into solid, viscoelastic, and liquid depending on temperature. Asphalt becomes brittle at low temperatures in the winter, causing cracks, and becomes fluid and deforms at high temperatures in the summer. Asphalt has fluidity as temperature rises and has the property of moving to cracks inside the pavement and sealing. Research on restoring road performance using this characteristic (asphalt self-healing) has been actively conducted. In this study, various tests were conducted to confirm the self-healing properties of asphalt using microwave irradiation in the laboratory. The flexural strength and indirect tensile strength before and after microwave irradiation were compared to analyze the different strength recovery ratio due to microwave irradiation. As a result of the study, it was confirmed that microwave irradiation is effective in recovering the strength of asphalt pavement, and that the strength recovery ratio of asphalt mixtures using SMA mixtures with high asphalt content and materials with heat conduction characteristics was high.

Keywords
Asphalt Self-healing
Hair-line Crack
Microwave Irradiation
Strength Recovery Ratio
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 : 13
  • No :2
  • Pages :262-268
  • Received Date : 2023-12-03
  • Revised Date : 2023-12-20
  • Accepted Date : 2023-12-20
  • DOI :https://doi.org/10.22702/jkai.2023.13.2.20
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