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http://dx.doi.org/10.12652/Ksce.2017.37.6.1043

Performance Evaluation of Stress Absorbing Membrane Interlayer Using Epoxy Asphalt Binder  

Jo, Shin Haeng (Kyonggi University)
Lee, Bong Lim (Kyonggi University)
Kim, Nakseok (Kyonggi University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.37, no.6, 2017 , pp. 1043-1051 More about this Journal
Abstract
Asphalt overlay on deteriorated concrete pavement has a problem of early damage due to reflective cracking. There is a need for a new method capable of reducing reflection cracking and ensuring the durability of pavement. The purpose of this study was to obtain durability of asphalt overlay with stress absorbing membrane interlayer (SAMI) using epoxy asphalt binder. The tensile performance, durability, water resistance and bonding performance of Epoxy-SAMI were evaluated by various tests. As a result of tests, Epoxy-SAMI meets the quality standard of the bridge waterproofing material. The repeated direct tensile test was carried out to investigate the effect of reflective cracking reduction. When the Epoxy-SAMI was applied, it had 1.2~1.56 times higher reflective cracking resistance than PSMA asphalt concrete with the thickness of 10cm even if the section thickness decreased. 4-point bending beam test results showed the number of fatigue failures increased 7.5 times when Epoxy-SAMI was applied. The Epoxy-SAMI was found to be effective in improving the durability of the asphalt pavement overlay because it serves to prevent reflective cracking, increase lifespan, and function as a waterproof layer.
Keywords
Asphalt pavement overlay; Reflective cracking; SAMI; Epoxy asphalt binder;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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