Relaxation modulus comparison of tank and modified asphalt binder by means of experimental and simple numerical approaches

Ki Hoon Moon

doi:10.22702/jkai.2024.14.2.28

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2024 Vol.14, Issue 2 Preview Page Next Page

Scientific Paper

Relaxation modulus comparison of tank and modified asphalt binder by means of experimental and simple numerical approaches

31 December 2024. pp. 306-313

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Abstract

For bituminous material such as asphalt pavement material, low temperature cracking is one of significant distresses. During the cold session, several macro cracks can be occurred due to too brittle characteristic of asphalt material. To evaluate the level of brittleness of given asphalt binder, low temperature creep test is widely used. In this low temperature creep test of asphalt material, creep stiffness is computed and this value can be converted into relaxation modulus: one of significant criteria for evaluating low temperature performance of asphalt binder, with various mathematical approaches. In this paper, relaxation modulus of modified asphalt binder with two different mathematical approaches, was computed, analyzed then compared. It was found that the two different computation methods can successfully provide upper and lower bounds of relaxation modulus of given asphalt binder.

Keywords

Low temperature cracking

Creep stiffness

Relaxation modulus

Mathematical approach

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 : 14
No :2
Pages :306-313
Received Date : 2024-12-19
Revised Date : 2024-12-24
Accepted Date : 2024-12-31
DOI :https://doi.org/10.22702/jkai.2024.14.2.28

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

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