A predictive equation for dynamic modulus of asphalt mixtures used in Korea

被引：39
|
作者：
Cho, Yoon-Ho [2 ]
Park, Dae-Wook [1 ]
Hwang, Sung-Do [3 ]
机构：
[1] Kunsan Natl Univ, Dept Civil Engn, Kunsan 573701, Chellabuk Do, South Korea
[2] Chung Ang Univ, Dept Civil & Environm Engn, Seoul 156756, South Korea
[3] Korea Inst Construct Technol, Goyang 411712, Gyeonggi, South Korea
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2010年 / 24卷 / 04期
关键词：
Asphalt mixtures; Dynamic modulus; Temperature time-dependent; Predictive equation; ME pavement design;
D O I：
10.1016/j.conbuildmat.2009.10.008
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The dynamic modulus of an asphalt mixture is widely used as an important material property in mechanistic-empirical (ME) pavement design and analysis because it accounts temperature and time-dependent asphalt mixture modulus. The aim of this study is to evaluate the dynamic modulus of asphalt mixtures used in Korea and develop a predictive equation for Korea ME pavement design guide based on the results of dynamic modulus tests. Asphalt mixtures contained a granite aggregate with PG 5822 and PG 64-22 asphalt binders were tested at five different temperatures (-10, 5, 21, 40, and 55 degrees C) and six different loading frequencies (0.1, 0.5, 1, 5, 10, and 25 Hz). A predictive equation was constructed based on the test data, and compared and verified between the measured and the predicted dynamic modulus. From the results, it was found that the predictive equation correlated well with the measured values. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：513 / 519
页数：7
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