Materials Reports  2020, Vol. 34 Issue (Z2): 612-617 |
| POLYMERS AND POLYMER MATRIX COMPOSITES |
|
|
|
|
|
| Study on Mechanical Properties of Water-curable Polymer Modified Emulsified Asphalt Mixture |
| ZHANG Qing1,2, HOU Dehua1,3, LIU Tingguo1,3
|
1 Henan Province Key Laboratory of Highgrade Highway Detection and Maintenance Technology, Xinxiang 453003, China
2 School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
3 Henan Gaoyuan Highway Maintenance Technology Co., Ltd., Xinxiang 453003, China |
|
|
|
|
Abstract In order to improve the working performance and road performance of emulsified asphalt mixture at room temperature,the mixing test, splitting test and indirect tensile fatigue test were used to study the mixing workability and mechanical properties of the water-curable polyurethane prepolymer modified emulsified asphalt mixture. Tests show that the water-curable polyurethane prepolymer modified emulsified asphalt mixture has good mixing, and better mixing effect than the SBR modified emulsified asphalt mixture. At the same time, the addition of water-curable polyurethane prepolymer is also conducive to the formation of early strength of emulsified asphalt mixture after demulsification, the early splitting strength and water stability of emulsified asphalt mixture are improved. In order to make it have good anti-fatigue performance, it is recommended that the amount of polyurethane prepolymer modified material is 40wt%—50wt% of the quality of asphalt. The research shows that the critical strain energy density has a significant correlation with the anti-fatigue evaluation index. Under the limited test environment, the comprehensive mechanical performance evaluation index critical strain energy density can quickly analyze the crack resistance of emulsified asphalt ability and anti-fatigue performance, it is helpful to guide indoor evaluation research.
|
|
Published: 08 January 2021
|
|
|
| Fund:This work was supported by the National Key R & D Plan (2018YFE0120200), Henan Innovation Demonstration Project (191110211500), Xinxiang Major Science and Technology Project (ZD19007). |
| About author:: Qing Zhang, doctor of engineering, senior engineer, master tutor, chief engineer of National Engineering Laboratory Research Center of Highway Maintenance Equipment.He received doctorate from Chang'an University in 2013, and went to Waterloo University in Canada for academic visits and collaborative research from 2016 to 2017. Its research team is committed to relying on the interdisciplinary advantages of materials science and engineering science, starting from basic application research and technology development, emphasis is placed on the micro-structure control and optimization of functional materials, centre on the improvement of comprehensive properties of materials, important breakthroughs in some key technologies of engineering functional materials have been achieved, and the performance and technological level of various engineering materials have been effectively improved.He published many articles in SCI, EI and core source journals, granted a number of invention patents, presides over and undertakes many key scientific research projects, and won a number of awards for science and technology.Through long-term research, he has established rich theoretical reserve and diversified research and development system. |
|
|
1 赵蓉龙, 李大鹏. 交通运输研究, 2008(4),91.
2 王志祥, 何创, 李建阁.石油沥青, 2015, 29(2),19.
3 季节,刘禄厚,索智,等.北京工业大学学报,2018,44(4),568.
4 李秀君,毕伟林,拾方治,等.重庆交通大学学报(自然科学版), 2018, 37(11),40.
5 Sheng X, Wang M, Xu T, et al. Construction and Building Materials, 2018, 189,375.
6 张庆,郝培文,白正宇.筑路机械与施工机械化, 2016(1),54.
7 张谦,王涵,毕治功.弹性体, 2019, 29(1),82.
8 陈利东,李璐,郝增.公路工程, 2013(2),218.
9 Chen Y, Li L, Xu L, et al. Journal of Applied Polymer Science, 2018, 135(22), 46334.
10 Calvo-Correas T, Santamaria-Echart A, Saralegi A, et al. European Polymer Journal, 2015, 70,173.
11 张丰雷, 凌晨, 王燚, 等. 功能材料, 2018, 49(2), 2183.
12 韩继成.聚氨酯(PU)改性乳化沥青制备及性能研究.硕士学位论文, 长安大学,2017.
13 Carrera V, Cuadri A A, García-Morales M, et al. Materials and Structures, 2015, 48(10), 3407.
14 陈俊,侯中新,黄晓明.公路交通科技, 2007(11),25.
15 褚建军,沈春林,康杰分.新型建筑材料, 2012(4),6.
16 Khoeini S, Dessouky S, Papagiannakis A T, et al. Construction and Building Materials, 2019, 204,177.
17 熊球兵,袁慎峰,尹红,等. 化工新型材料, 2011(S1),79.
18 易长海,甘厚磊,吴海燕,等.新型建筑材料, 2007, 34(2),62.
19 Kavussi A, Modarres A. Construction and Building Materials, 2010, 24(10), 1920. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
