Browse > Article
http://dx.doi.org/10.14190/JRCR.2021.9.4.633

Long-Term Performance Evaluation on the Recycled Asphalt Concrete Using the Steel Slag and Reclaimed Asphalt Pavement Aggregates  

Park, Kyung-Won (The Institute of Technology, SG Co., Ltd.)
Jang, Dong-Bok (The Institute of Technology, SG Co., Ltd.)
Lee, Jong-Min (Environment & Energy Engineering Team, HYUNDAI STEEL Co., Ltd.)
Kang, Byung-Hwa (R&D Department, Hyoseok Co., Ltd.)
Kim, Hyung-Bae (Pavement Research Division, Korea Expressway Corporation)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.9, no.4, 2021 , pp. 633-641 More about this Journal
Abstract
The study performed long-term performacne evaluation on the hot mix asphalt using the steel slag aggregates and Reclaimed Asphalt Pavement (RAP). The laboratory comparative evaluation was conducted between conventional Hot Mix Asphalt (HMA) which is entitled WC-2 and HMA containing steel slag and RAP which is entitled ES WC-2(R). Dynamic stability test, dynamic modulus test, and fatigue crack test were conducted during the comparative evaluation process. The dynamic stability test result showed that ES WC-2(R) was 140% higher than WC-2. It is noted that ES WC-2(R) showed no inflection point whereas WC-2 showed inflection point during the dynamic stability test which implies ES WC-2(R) has the higher moisture susceptability than WC-2. The dynamic modulus of ES WC-2(R) were 342.3%, 486.7%, and 350.0% higher than WC-2 at medium temperature of 21℃, low temperature of -10℃, and high temperature of 38℃ respectively. The test result showed that rutting resistance of ES WC-2(R) is higher than WC-2 at all temperature spectrum. The fatigue resistance of ES WC-2(R) were 31.7%, 325.3%, 899.9% higher at low stress level, medium stress level, and high stress level, respectively. The test result showed that ES WC-2(R) is higher than WC-2 at all stress levels. Based on the laboratory comparative evaluation, The in-situ scale Accelerated Pavement Test (APT) was conducted comparing WC-2 and WC-2(R). APT found that the rutting resistance of WC-2(R) was 45% higher than WC-2.
Keywords
Steel slag; Reclaimed asphalt pavement aggregates; Hot mix asphalt; Long-term performance evaluation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Wen, H., Wu, S., Bhusal, S. (2015). Performance evaluation of asphalt mixes containing steel slag aggregate as a measure to resist studded tire wear, Journal of Materials in Civil Engineering, 28(5), 04015191.   DOI
2 Kavussi, A., Jalili Qazizadeh, M., Hassani, A. (2015). Fatigue behavior analysis of asphalt mixes containing electric arc furnace(EAF) steel slag, Journal of Rehabilitation in Civil Engineering, 3(1), 74-86.
3 Masad, E.A., Al-Rousan, T., Button, J.W., Little, D.N. (2007). Appendixes to NCHRP Report 555: Test Methods for Characterizing Aggregate Shape, Texture, and Angularity, National Cooperative Highway Research Program
4 Ministry of Land, Infrastructure and Transport (2018). Aggregate Supply and Demand Plan for 2018 [in Korean].
5 Shen, A., Zhai, C., Guo, Y., Yang, X. (2018). Mechanism of adhesion property between steel slag aggregate and rubber asphalt, Journal of Adhesion Science and Technology, 32(24), 2727-2740.   DOI
6 Ministry of Environment. (2020). The Direction of the Green New Deal policy of the Ministry of Environment and Major Projects [in Korean].