Effects of different types of warm-mixed agents on pavement performance of asphalt mixtures and its efficiency evaluation
1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang′an University, Xi′an, Shaanxi 710064, China; 2. Zhejiang Highway and Water Transport Engineering Supervision Co., Ltd.， Hangzhou, Zhejiang 310004, China； 3. Shaanxi Transportation Holding Group Co., Ltd., Xi′an, Shaanxi 710038, China
Abstract：To evaluate the effectiveness of different types of warm-mixed agents and recommend the applicable areas, the warm-mixed agents with different viscosity reduction mechanisms of PRLT, Sasobit, Aspha-min and HH-XⅡ were selected. SGC rotary compaction test, thermodynamic analysis and pavement performance test were carried out, and the effects of the types of warm-mixed agents on cooling effect, energy consumption and pavement performance of the asphalt mixture were investigated. The efficiencies of four warm-mixed agents were evaluated based on grey correlation theory. The results show that the mixing and compaction temperatures of SBS modified asphalt mixture can be reduced by four warm-mixed agents with different viscosity reduction mechanisms, and the best cooling effect can be obtained by PRLT with greatly reduced energy consumption. The high temperature performance can be improved by Sasobit, and Sasobit can be used in high temperature and heavy load areas. The low temperature and water stability performance can be improved by PRLT, but PRLT has adverse effects on high temperature performance, so it is suitable for asphalt pavement construction in seasonal freezing areas. Aspha-min asphalt mixture has the best low temperature performance and can be used in severe cold areas. HH-XⅡ has negative effect on the high and low temperature performance of asphalt mixture, while the water stability can be improved by HH-XⅡ, and HH-XⅡ can be used in areas with heavy rainfall. PRLT has the greatest correlation with the performance of warm mix mixture, and it has the best overall performance.
张争奇1， 张天天2， 王相友1， 石荣杰3. 不同类型温拌剂对沥青混合料路用性能影响及其效能评价[J]. 江苏大学学报（自然科学版）, 2022, 43(6): 711-718.
ZHANG Zhengqi1, ZHANG Tiantian2, WANG Xiangyou1, SHI Rongjie3. Effects of different types of warm-mixed agents on pavement performance of asphalt mixtures and its efficiency evaluation[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2022, 43(6): 711-718.
LIU Z F, WU S P, CHEN M Z, et al. Status and pro-blems of warm mix asphalt [J]. Journal of Wuhan University of Technology, 2009, 31(4): 170-173.（in Chinese）
［2］
SUKHIJA M, SABOO N. A comprehensive review of warm mix asphalt mixtures-laboratory to field [J]. Construction and Building Materials, doi：10.1016/j.conbuildmat.2020.121781.
［3］
ZHUANG R H, YU J Y, CHANG H, et al. Effect of warm mix agent on physical and aging properties of crumb rubber modified bitumen [J]. Materials Science Forum, 2019, 944: 1226-1233.
［4］
WOSZUK A, FRANUS W. A review of the application of zeolite materials in warm mix asphalt technologies [J]. Applied Sciences， doi:10.3390/app7030293.
［5］
IWANSKI M M, CHOMICZ-KOWALSKA A, MACIEJEWSKI K. Effect of surface active agent (SAA) on 50/70 bitumen foaming characteristics[J]. Materials, doi: 10.3390/ma12213514.
［6］
OLIVERA J R M, SILVA H M R D, ABREU L R F, et al. Use of a warm mix asphalt additive to reduce the production temperatures and to improve the performance of asphalt rubber mixtures [J]. Journal of Cleaner Production, 2013, 41: 15-22.
HE Y T, LI W, LEI J A, et al. Effect of different warm mix agent on performance of asphalt and its mixture [J]. Highway, 2020, 65(9): 59-64. （in Chinese）
YAN X L, CHEN S L, AN S W, et al. Compaction characteristics and operability factor of warm bituminous mixture [J]. Journal of Traffic and Transportation Engineering, 2017, 17(1): 11-19. （in Chinese）
ZHANG Y L, GUO K, ZHAO S Z, et al. Determination of construction temperature for modified asphalt mixture [J]. Journal of Jiangsu University (Natural Science Edition), 2016, 37(6):740-744. （in Chinese）
LI Q Y, LIANG N X, YANG Z L, et al. Research on the effect of different types of warm mix additives on the performance of asphalt mixture [J]. Journal of Wuhan University of Technology(Transportation Science ＆ Engineering), 2021,45（3）：562-567. （in Chinese）
LI X Y, SUO Z, LUO L. Quantitative analysis on energy saving and emission reduction of warm-mix asphalt mixture in production stage [J]. Materials Reports, 2020, 34(S1): 209-212. （in Chinese）
ZHU S Y, CHEN S F, QIN X T, et al. Key indexes of high viscosity modified asphalt based on grey correlation entropy analysis [J]. Journal of Materials Science and Engineering, 2014, 32(6): 863-867. （in Chinese）
2022, Vol. 43 
