Chemical model to explain asphalt binder and asphalt–aggregate interface behaviors

Dong-Woo Cho; Kyoungchul Kim; Min-Jae Lee

doi:10.1139/l09-163

journal article Jan 01, 2010

Chemical model to explain asphalt binder and asphalt–aggregate interface behaviors

Dong-Woo Cho Kyoungchul Kim Min-Jae Lee

Canadian Journal of Civil Engineering Vol. 37 No. 1 pp. 45-53 · Canadian Science Publishing

View at Publisher Save 10.1139/l09-163

Abstract

The behavior of asphalt mixtures is very complicated due to structural configuration and interfacial friction of aggregates as well as chemical and rheological reactions of the asphalt binder itself or with the aggregates. Furthermore, this complex response is more complicated under various loads, temperatures, and other environmental factors. To control the complex responses and reduce the complex factors, a DSR moisture damage test using small rock disks was developed. This paper focuses on the more fundamental concepts to explain asphalt and asphalt–aggregate bond behavior exhibited under the newly-developed DSR moisture damage test. The traditional model of asphalt structure is based on the theory of colloid and surface chemistry. Although this traditional model can explain many physical phenomena of asphalt structure, it cannot explain all the asphalt behaviors, such as steric hardening. Therefore, more general, but fundamental concepts may be required to attain insight of the material. As one of the possible concepts, a self-assembly concept in supramolecular chemistry is proposed and phenomena and results of the DSR moisture damage test are explained by the concept.

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Details

Published: Jan 01, 2010
Vol/Issue: 37(1)
Pages: 45-53
License: View

Authors

D

Dong-Woo Cho

Highway Research Division, Korea Institute of Construction Technology, 1190, Simindaero, Ilsan-Gu, Goyang-Si, Gyeonggi-do 411-712, Korea.; Civil Engineering Research Team, R&D Center, KOLON Engineering & Construction Co, Ltd.; Department of Civil Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea.

K

Kyoungchul Kim

Highway Research Division, Korea Institute of Construction Technology, 1190, Simindaero, Ilsan-Gu, Goyang-Si, Gyeonggi-do 411-712, Korea.; Civil Engineering Research Team, R&D Center, KOLON Engineering & Construction Co, Ltd.; Department of Civil Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea.

M

Min-Jae Lee

Highway Research Division, Korea Institute of Construction Technology, 1190, Simindaero, Ilsan-Gu, Goyang-Si, Gyeonggi-do 411-712, Korea.; Civil Engineering Research Team, R&D Center, KOLON Engineering & Construction Co, Ltd.; Department of Civil Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea.

Cite This Article

Dong-Woo Cho, Kyoungchul Kim, Min-Jae Lee (2010). Chemical model to explain asphalt binder and asphalt–aggregate interface behaviors. Canadian Journal of Civil Engineering, 37(1), 45-53. https://doi.org/10.1139/l09-163

Chemical model to explain asphalt binder and asphalt–aggregate interface behaviors

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