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Effect of warm-mix additives on the strain strength and indirect tensile strength of asphalt binders and mixtures

중온 첨가제가 아스팔트 혼합물의 변형 강도 및 간접인장강도에 미치는 영향에 관한 연구

Soon yong An1*
,
Kwang W. Kim2
,
Tae Soon Park3
안 순용1*
,
김 광우2
,
박 태순3
1Ph.D Course, Dept. of Civil Engineering, Seoul National University of Science & Technology
2Professor Emeritus, Department of Regional Infrastructure Engineering, Kangwon National University
3Professor, Dept. of Civil Engineering, Seoul National University of Science & Technology
1서울과학기술대학교 일반대학원 박사과정
2강원대학교 지역건설공학과 명예교수
3서울과학기술대학교 건설시스템공학과 교수
*Corresponding Author
31 December 2021. pp. 158-173
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Abstract

Environmental protection and carbon dioxide reduction, which are advantages of the Warm-mix asphalt mixture, are very well-suited to environmental issues such as fine dust and climate change that are emerging in society. In order to realize this topic, it has been recognized as a new technology in the field of asphalt packaging. However, studies have reported since 1993 that when Warm-mix asphalt is exposed under low temperature (-5°C or lower), the internal fracture toughness due to shrinkage expansion cracks is lowered. Therefore, various modified additives are used to prevent plastic deformation and cracking, which have been pointed out as disadvantages of Warm-mix asphalt mixtures. This study was conducted to investigate the effects and effects of modified additives on the optimum amount of asphalt, plastic deformation and crack resistance of modified medium temperature asphalt.

Keywords
Warm mix asphalt
Indirect tensile strength test
Deformation strength
Kim test
t-test
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 : 11
  • No :2
  • Pages :158-173
  • Received Date : 2021-10-06
  • Revised Date : 2021-11-03
  • Accepted Date : 2021-11-23
  • DOI :https://doi.org/10.22702/jkai.2021.11.2.13
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