Compatibility and Adhesion Properties of Rubber Asphalt
王筵铸1, 王旭东2
1. Harbin Institute of Technology, Harbin Heilongjiang 150090, China; 2. Fundamental Research Innovation Center, Research Institute of Highway Ministry of Transport, Beijing 100088, China
Compatibility and Adhesion Properties of Rubber Asphalt
WANG Yan-zhu1, WANG Xu-dong2
1. Harbin Institute of Technology, Harbin Heilongjiang 150090, China; 2. Fundamental Research Innovation Center, Research Institute of Highway Ministry of Transport, Beijing 100088, China
摘要To research the compatibility and adhesion of rubber asphalt, the correlation of the asphalt components and rubber content with conventional properties of rubber asphalt was analyzed. The effects of asphalt component, rubber content, thin-film oven testing, and ultraviolet (UV)-aging testing on the adhesion properties of rubber asphalt were analyzed by measuring the surface free energy and its component based on the theory of surface free energy. Results show that the three major indicators of rubber asphalt are obviously affected by the properties of matrix asphalt, i.e., rubber asphalt has low penetration, high softening point, and movement viscosity processed by the matrix asphalt with high resin and asphaltene content. With increased rubber content, the penetration of rubber asphalt decreases and its softening point increases, but its ductility value is closer. Viscosity decreases when rubber asphalt is stored at high temperature, and viscosity decreases by 60% when stored for 8 h at 180℃. The surface energy of rubber asphalt increases with increased rubber content. After thin-film oven testing of 5, 10, and 15 h, the surface energy of rubber asphalt increases, but the change rate of surface energy decreases. The effect of UV aging on the surface properties of rubber bitumen is not obvious. The surface energies of rubber asphalt processed by different components of matrix asphalt after 10 and 20 d of UV aging differ.
Abstract：To research the compatibility and adhesion of rubber asphalt, the correlation of the asphalt components and rubber content with conventional properties of rubber asphalt was analyzed. The effects of asphalt component, rubber content, thin-film oven testing, and ultraviolet (UV)-aging testing on the adhesion properties of rubber asphalt were analyzed by measuring the surface free energy and its component based on the theory of surface free energy. Results show that the three major indicators of rubber asphalt are obviously affected by the properties of matrix asphalt, i.e., rubber asphalt has low penetration, high softening point, and movement viscosity processed by the matrix asphalt with high resin and asphaltene content. With increased rubber content, the penetration of rubber asphalt decreases and its softening point increases, but its ductility value is closer. Viscosity decreases when rubber asphalt is stored at high temperature, and viscosity decreases by 60% when stored for 8 h at 180℃. The surface energy of rubber asphalt increases with increased rubber content. After thin-film oven testing of 5, 10, and 15 h, the surface energy of rubber asphalt increases, but the change rate of surface energy decreases. The effect of UV aging on the surface properties of rubber bitumen is not obvious. The surface energies of rubber asphalt processed by different components of matrix asphalt after 10 and 20 d of UV aging differ.
王筵铸, 王旭东. Compatibility and Adhesion Properties of Rubber Asphalt[J]. Journal of Highway and Transportation Research and Development, 2020, 14(2): 40-50.
WANG Yan-zhu, WANG Xu-dong. Compatibility and Adhesion Properties of Rubber Asphalt. Journal of Highway and Transportation Research and Development, 2020, 14(2): 40-50.
[1] WANG Jin-feng, ZHANG Yu-zhen. Application of Crumb Rubber in Modified Asphalt[J]. Petroleum Asphalt, 2013,27(4):62-66. (in Chinese) [2] SHEN J, AMIRKHANIAN S N. The Influence of Crumb Rubber Modifier (CRM) Microstructures on the High Temperature Properties of CRM Binders[J]. International Journal of Pavement Engineering, 2005,6(4):265-271. [3] GUO Chao-yang. Study on Application Technology of Crumb Tire Rubber Asphalt[D]. Chongqing:Chongqing Jiaotong University, 2008. (in Chinese) [4] WANG Xu-dong,LI Mei-jiang,LU Kai-ji,et al. The Applied Technology of the Crumb Rubber in the Asphalt and Mixture[M]. Beijing:China Communications Press, 2008. (in Chinese) [5] SUN Zu-wang, CHEN Biao. Application Guide for Rubber Asphalt[M]. Beijing:China Communications Press, 2007. (in Chinese) [6] MULL M A, STUART K, YEHIA A. Fracture Resistance Characterization of Chemically Modifier Crumb Rubber Asphalt Pavement[J]. Journal of Materials Science, 2002, 37(3):557-566. [7] ZHANG Wen-wu. Study on Mechanism of Crumb Rubber Modified Asphalt[D]. Chongqing:Chongqing Jiaotong University, 2009. (in Chinese) [8] LI Yu. Study on Rubber Asphalt Production Technology Application[D]. Jinan:Shandong University, 2013. (in Chinese) [9] PENG Gang. Study on Study on Stability of Rubberized Warm Asphalt Based on Orthogonal Experiment[J]. Journal of East China Jiaotong University, 2016,33(5):12-17. (in Chinese) [10] HE Liang, HUANG Xiao-ming, MA Yu, et al. Experimental Study on Storage Stability of Crumb Rubber Modified Asphalt[J]. Journal of Southeast University:Natural Science Edition, 2011,41(5):1086-1091. (in Chinese) [11] JANSSEN D, DE PALMA R, VERLAAK S, et al. Static Solvent Contact Angle Measurements, Surface Free Energy and Wettability Determination of Various Self-assembled Monolayers on Silicon Dioxide[J]. Thin Solid Films, 2006, 515(4):1433-1438. [12] KWOK D Y, GIETZELT T, GRUNDKE K, et al. Contact Angle Measurements and Contact Angle Interpretation. 1. Contact Angle Measurements by Axisymmetric Drop Shape Analysis and a Goniometer Sessile Drop Technique[J]. Langmuir, 1997, 13(10):2880-2894. [13] KWOK D Y, NEUMANN A W. Contact Angle Measurement and Contact Angle Interpretation[J]. Advances in Colloid and Interface Science, 1999, 81(3):167-249. [14] ZHAO Hua, LIAO Ke-jian, LI Ying-gang. Analysis on the Anti-ageing Performance and Benefit of Crumb Tire Rubber Modified Asphalt[J]. Science and Technology in Chemical Industry, 2010,18(6):9-12. (in Chinese) [15] XU Dong, WANG Xin-kuan, CHEN Bo. Research on Properties of Reclaimed Rubber Modified Asphalt Mixture[J]. Journal of Wuhan University of Technology, 2012,34(10):48-52. (in Chinese) [16] TEND Xu-qiu, FEI Zhan-li, WEN Hua, et al. Study on Aging Characteristics of Rubber Asphalt in Consideration of Multiple Factors[J]. Journal of Lanzhou Jiaotong University, 2016,35(4):1-5. (in Chinese) [17] SHEN Yan, KANG Ai-hong, WANG Chao, et al. Characterization of Aging Degree of Rubber Asphalt in Rubber Asphalt Mixture[J]. China Synthetic Rubber Industry, 2017,40(6):467-472. (in Chinese) [18] XIAO Peng, WU Mei-ping, JIANG De-an. Study on Properties of Ultraviolet Aged Rubber Asphalt[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2013,45(1):152-156. (in Chinese)
2020, Vol. 14 
