| Title |
A Development of Strength Prediction Model of Epoxy Asphalt Concrete for Traffic Opening |
| Authors |
백유진(Baek, Yu Jin) ; 조신행(Jo, Shin Haeng) ; 박창우(Park, Chang Woo) ; 김낙석(Kim, Nakseok) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.6D.599 |
| Keywords |
에폭시 아스팔트;화학반응속도론;교통개방시기;강도 예측모델 epoxy asphalt;chemical kinetics;traffic opening time;strength prediction model |
| Abstract |
It is important to decide traffic opening time for construction plan of epoxy asphalt pavement. For this purpose, strength prediction model of epoxy asphalt concrete is required. In this study, Marshall stability was measured according to temperature and time for making strength properties equation. Strength prediction model was developed using chemical kinetics considering temperature variation. The traffic opening time of epoxy asphalt pavement on bridge deck has been predicted using the developed model. The prediction and actual traffic opening times were different by 17-days, because weathers of year 2009-2011 used in prediction model were different from weather of year 2012. When the prediction model used the actually measured temperatures of pavement, the difference between real opening time and prediction opening time was two days. The correlation analysis result between measured strength and prediction strength revealed that the $R^2$ using accurate temperature of pavement was 0.95. An improved precise prediction result is to be obtained if the prediction model uses accurate temperature data of pavement. |