Rheological Properties of Emulsified Asphalt Residue for Cold Regeneration
WANG Decai1,2, HAO Peiwen3, YUE Jinchao1, SUN Yang1, ZHANG Qing4
1 School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou 450000, China; 2 Henan Transportation Science and Technology Research Institute Co., Ltd., Zhengzhou 450006, China; 3 Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang'an University, Xi'an 710064, China; 4 College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
Abstract: In order to deeply understand the characteristics of emulsified asphalt material for cold recycling and the mechanism of its residue action, dynamic shear rheological test and repeated creep test were adopted. Emulsified asphalt residues were prepared under two different conditions of a high-temperature evaporation mode and a low-temperature evaporation mode. The material composition was changed by changing the type and dosage of emulsifier and adding modifier. Combined with variance analysis, the influence of different material composition and preparation methods on the rheological properties of emulsified asphalt residue was analyzed. The test results show that the type, dosage and preparation method of emulsifier have significant influence on the rheological properties of emulsified asphalt residue at high temperature. The rutting factor of residue shows a power function relation with temperature. The variation characteristics of rutting factor of modified emulsified asphalt residue under high-temperature evaporation are obviously different from that of common emulsified asphalt residue, while the variation characteristics under low-temperature evaporation are consistent with that of common emulsified asphalt residue, and the PG classification temperature of emulsified asphalt residue will be reduced under high-temperature evaporation. The modified emulsified asphalt residue presents the viscoelastic fluid characteristic of irregular curve change in the 1st loading stage, which is inconsistent with the rheological characteristic of the modified emulsified asphalt residue under the condition of low temperature evaporation. The rutting factor and creep compliance are used to evaluate the high temperature performance of common emulsified asphalt residue under the same evaporation condition, which has good consistency. In this study, it is proposed that low-temperature evaporation method should be used to obtain the residue of modified emulsified asphalt, and creep compliance should be used as the high-temperature performance evaluation index.
1 Gingras J P, Fradette L, Tanguy P, et al. Industrial & Engineering Chemistry Research, 2007, 46 (6),1818. 2 Banerjee A,Smit A D F,Prozzi J A.Construction and Building Materials,2012,27 (1), 158. 3 Chompoorat T,Likitlersuang S.Ksce Journal of Civil Engineering,2016,20 (7),1. 4 Ma L X. Research on the viscoelastic properties of asphalt and asphalt mixture in the process of ageing. Master's Thesis, Wuhan University of Technology, China,2012 (in Chinese). 马莉骍. 沥青及沥青混合料老化过程中的粘弹性能研究.硕士学位论文,武汉理工大学,2012. 5 Islam R M, Ashani S S, Wasiuddin N M, et al. Journal of Testing & Evaluation, 2015, 43 (5),1134. 6 Marasteanu M O, Clyne T R. Journal of Materials in Civil Engineering, 2006,18 (3), 398. 7 Pang J Y, Du S J, Chang R T, et al. Journal of Applied Polymer Science, DOI.org/10.1002/app.41806. 8 Chang R T,Du S J, Pei Q, et al. Journal of Chongqing Jiaotong University (Natural Sciences), 2016,35 (5),38 (in Chinese). 畅润田,杜素军,裴强,等. 重庆交通大学学报 (自然科学版),2016,35 (5),38. 9 Gao X W, Pang J Y. Journal of Chang'an University (Natural Science Edition), 2018,38 (4),21 (in Chinese). 高新文,庞瑾瑜.长安大学学报 (自然科学版),2018,38 (4),21. 10 Cui D X, Pang J Y. Journal of China & Foreign Highway, 2015,35 (6),229 (in Chinese). 崔东霞,庞瑾瑜.中外公路,2015,35 (6),229. 11 Wang D C. Design method and performance improvement of emulsified asphalt cold recycled mixture. Ph.D.Thesis, Chang'an University, China, 2017 (in Chinese). 汪德才.乳化沥青冷再生混合料配合比设计方法及性能优化研究. 博士学位论文,长安大学,2017. 12 Zhang X N. Viscoelastic mechanics theory and application of asphalt and asphalt mixture, China Communications Press, China, 2006 (in Chinese). 张肖宁.沥青与沥青混合料的粘弹力学,人民交通出版社,2006. 13 Zhou Q H, Jia Y. Journal of Chang'an University (Natural Science Edition), 2008 (2),9 (in Chinese). 周庆华,贾渝.长安大学学报 (自然科学版),2008 (2),9. 14 Zhou Q H, Sha A M. Journal of Traffic and Transportation Engineering, 2008 (1), 27. 周庆华,沙爱民.交通运输工程学报,2008 (1),27. 15 Zhang X N, Meng Y J, Zou G L. Journal of South China of University,2008,36 (2),22 (in Chinese). 张肖宁,孟勇军,邹桂莲.华南理工大学学报,2008,36 (2),22. 16 Wang L, Chang C Q, Xing Y M. Journal of Building Materials,2014,17 (4),721 (in Chinese). 王岚,常春清,邢永明.建筑材料学报,2014,17 (4),721.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2020, Vol. 34 
