Research on Adhesive Properties between Asphalt and Aggregates at High Temperature
王筵铸1,2, 时敬涛3, 王旭东2, 杨光1
1. Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150090; 2. China Research Institute of Highway, Ministry of Transport, Beijing, 100088, China; 3. Petrochina Fuel Oil Co., Ltd Research Institute, Beijing, 100000, China
Research on Adhesive Properties between Asphalt and Aggregates at High Temperature
WANG Yan-zhu1,2, SHI Jing-tao3, WANG Xu-dong2, YANG Guang1
1. Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150090; 2. China Research Institute of Highway, Ministry of Transport, Beijing, 100088, China; 3. Petrochina Fuel Oil Co., Ltd Research Institute, Beijing, 100000, China
摘要In order to achieve a quantitative evaluation of adhesion from the microscopic point of view, based on the variation law of the contact angle in the process of asphalt spreading at the aggregate surface, an evaluation index that can quantitatively characterize the adhesive properties of asphalt and aggregate is presented. The image information of the contact angle is collected based on wetting theory and sessile drop method at different temperatures. The technical parameters are extracted from the fitting equation of the contact angle, and the quantitative analysis of the adhesive performance is realized. The result shows that (1) In the process of the asphalt spreading at the aggregate surface, the equation for the relationship between the contact angle and time is in accordance with power function y=Axa, the constant term A in the power function represents the size of the initial contact angle, and the initial state of contact angle is related to the viscosity state of the asphalt at the same temperature, which represents of the asphalt. There is a linear relationship between the constant term A and the asphalt viscosity η at log-log plot. (2) The index a of the power function represents the diffusion rate of asphalt at the aggregate surface and reflects the wetting and the adhesive properties between the asphalt and the aggregate. (3) The diffusion rate of 3 graded matrix asphalts at the surface of diabase experimented in this research has a higher temperature sensitivity, and the wetting and the adhesive properties between the asphalt and the diabase is better than those of limestone.
Abstract：In order to achieve a quantitative evaluation of adhesion from the microscopic point of view, based on the variation law of the contact angle in the process of asphalt spreading at the aggregate surface, an evaluation index that can quantitatively characterize the adhesive properties of asphalt and aggregate is presented. The image information of the contact angle is collected based on wetting theory and sessile drop method at different temperatures. The technical parameters are extracted from the fitting equation of the contact angle, and the quantitative analysis of the adhesive performance is realized. The result shows that (1) In the process of the asphalt spreading at the aggregate surface, the equation for the relationship between the contact angle and time is in accordance with power function y=Axa, the constant term A in the power function represents the size of the initial contact angle, and the initial state of contact angle is related to the viscosity state of the asphalt at the same temperature, which represents of the asphalt. There is a linear relationship between the constant term A and the asphalt viscosity η at log-log plot. (2) The index a of the power function represents the diffusion rate of asphalt at the aggregate surface and reflects the wetting and the adhesive properties between the asphalt and the aggregate. (3) The diffusion rate of 3 graded matrix asphalts at the surface of diabase experimented in this research has a higher temperature sensitivity, and the wetting and the adhesive properties between the asphalt and the diabase is better than those of limestone.
王筵铸, 时敬涛, 王旭东, 杨光. Research on Adhesive Properties between Asphalt and Aggregates at High Temperature[J]. Journal of Highway and Transportation Research and Development, 2020, 14(3): 53-61.
WANG Yan-zhu, SHI Jing-tao, WANG Xu-dong, YANG Guang. Research on Adhesive Properties between Asphalt and Aggregates at High Temperature. Journal of Highway and Transportation Research and Development, 2020, 14(3): 53-61.
[1] CARO S, MASAD E, BHASIN A, et al. Moisture Susceptibility of Asphalt Mixtures, Part 1:Mechanisms[J]. International Journal of Pavement Engineering, 2008, 9(2):81-98. [2] CARO S, MASAD E, BHASIN A, et al. Coupled Micromechanical Model of Moisture-induced Damage in Asphalt Mixtures[J]. Journal of Materials in Civil Engineering,2010,22(4):380-388. [3] BHASIN A, MASAD E, LITTLE D, et al. Limits on Adhesive Bond Energy for Improved Resistance of Hot-mix Asphalt to Moisture Damage[J]. Transportation Research Record, 2006,1970:3-13. [4] TAN Y, GUO M. Using Surface Free Energy Method to Study the Cohesion and Adhesion of Asphalt Mastic[J]. Construction and Building Materials,2013,47(5):254-260. [5] SCHULTZ J, NARDIN M. Theories and Mechanisms of Adhesion[M]. New York:Marcel Dekker Inc., 2002. [6] YOON H H, TARRAR A R. Effect of Aggregate Properties on Stripping[J]. Transportation Research Record, 1988, 1171:37-43. [7] APEAGYEI A K, GRENFELL J R A, AIREY G D. Observation of Reversible Moisture Damage in Asphalt Mixtures[J]. Construction and Building Materials, 2014,60(9):73-80. [8] KAKAR M R, HAMZAH M O, VALENTIN J. A Review on Moisture Damages of Hot and Warm Mix Asphalt and Related Investigations[J]. Journal of Cleaner Production,2015,3(28):39-58. [9] HEFER A W, BHASIN A, LITTLE D N. Bitumen Surface Energy Characterization Using a Contact Angle Approach[J]. Journal of Materials in Civil Engineering, 2006, 18(6):759-767. [10] BHASIN A, LITTLE D N. Characterization of Aggregate Surface Energy Using the Universal Sorption Device[J]. Journal of Materials in Civil Engineering, 2007, 19(8):634-641. [11] KOC M, BULUT R. Assessment of A Sessile Drop Device and A New Testing Approach Measuring Contact Angles on Aggregates and Asphalt Binders[J]. Journal of Materials in Civil Engineering, 2014,26(3):391-398. [12] MARASTEANU M, CLYNE T, MCGRAW J, et al. High-temperature Rheological Properties of Asphalt Binders[J]. Transportation Research Record, 2005,1901:52-59. [13] YILDIRIM Y, IDEKER J, HAZLETT D. Evaluation of Viscosity Values for Mixing and Compaction Temperatures[J]. Journal of Materials in Civil Engineering, 2006, 18(4):545-553. [14] WASIUDDIN N M. Effect of Additives on Surface Free Energy Characteristics of Aggregates and Binders in Hot Mix Asphalt[D]. Norman:University of Oklahoma, 2007. [15] LI Xiu-jun, SHI Fang-zhi. Study on Viscosity of Viscous Flowing Asphalt[J]. Petroleum Asphalt, 2003, 17(2):28-30. (in Chinese) [16] ZHANG Jin-sheng. Bituminous Materials[M]. Beijing:Chemical Industry Press, 2009. (in Chinese) [17] YIN Dong-xia, MA Pei-sheng, XIA Shu-qian. Progress on Methods for Measuring Surface Tension of Liquids[J]. Bulletin of Science and Technology,2007, 23(3):424-429. (in Chinese) [18] HANSEN F K, RODSRUD G. Surface Tension By Pendant Drop:I. A Fast Standard Instrument Using Computer Image Analysis[J]. Journal of Colloid and Interface Science, 1991, 141(1):1-9. [19] 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.
2020, Vol. 14 
