Academic Journal of Engineering and Technology Science, 2026, 9(3); doi: 10.25236/AJETS.2026.090304.
Baoyu Liu1, Ming Sun1, Jian Li1, Zhen Li1, Jie Hu1, Tuo Zhao2, Yongling Ding2, Huadong Sun2
1Shandong Taishan Road & Bridge Engineering Group Co., Ltd, Tai’an, 27100, Shandong, China
2School of Transportation Civil Engineering, Shandong Jiaotong University, Jinan, 250357, Shandong, China
To address the issues of delamination, demulsification, and uneven spraying of tack-coat emulsified asphalt during storage and construction heating, this study employed a single-factor control method to systematically investigate the effects of emulsifier type and dosage, asphalt solids content, emulsification and soap-solution temperatures, stabilizer type and dosage, and soap-solution pH on storage stability. Stability was evaluated according to T0655 in JTG E20-2011, with cyclic heating used to simulate repeated construction heating. Long-term stability was assessed by solids content difference (SS) after 1 d, 5 d, 7 d of static storage and post-cyclic heating. Results show that Type A emulsifier performed best at an optimal dosage of 1%; solids content of 62% yielded maximum stability; optimal asphalt and soap-solution temperatures were 145~160 ℃ and 60~70 ℃, respectively; HEMC exhibited the most significant stabilizing effect at 0.3% dosage; and soap-solution pH of 2.5~3.5 ensured interfacial film integrity and optimal storage stability.
adhesive layer emulsified asphalt; storage stability; asphalt solid content; Soap pH
Baoyu Liu, Ming Sun, Jian Li, Zhen Li, Jie Hu, Tuo Zhao, Yongling Ding, Huadong Sun. Study on Influencing Factors and Improvement Measures for Storage Stability of Tack-Coat Emulsified Asphalt. Academic Journal of Engineering and Technology Science (2026), Vol. 9, Issue 3: 27-33. https://doi.org/10.25236/AJETS.2026.090304.
[1] He L H, Wen X X, Hou Y T, et al. Analysis of factors influencing the particle size and distribution of anionic emulsified asphalt [J]. Journal of Chongqing Jiaotong University (Natural Science Edition), 2021,40(06):99-104.
[2] Chang H Y, Liu W C, Du X B, et al. Study on the storage stability of modified emulsified asphalt [J]. Petroleum Asphalt, 2020,34(03):6-10.
[3] Fan P, Song L, Tu P C, et al. Study on the Effects of Stabilizers on the Storage Stability and Drying Film Formation Properties of Emulsified Asphalt [J]. Transportation Energy Conservation and Environmental Protection, 2024,20(05):193-197.
[4] Li Q Z, Yang H, Li B. Analysis of the Stabilization Mechanism of Emulsified Asphalt [J]. Petroleum Asphalt, 2013,27(02):68-72.
[5] Nan B Z, Wang Y B, Zhang X Y, et al. Experimental Study on the Storage Stability of Modified Emulsified Asphalt with Micro-Tablets [J]. Journal of Lanzhou Jiaotong University, 2022,41(03):14–18+46.
[6] Japan Emulsified asphalt Association. Japan emulsified asphalt association standard[S]. Tokyo: Japan Emulsified asphalt Asso citation, 2011:1-12.
[7] Zhu M. Preparation and performance evaluation of non-adhesive wheel-emulsified asphalt [J]. Liaoning Chemical Industry, 2021,50(5):1464–1466,1470.
[8] Xiu L Y, Song W J. The complete technology for emulsified asphalt in the adhesive layer of Yantai Highway Center has reached a domestically leading level [J]. China Highway, 2022(3):73–75.
[9] Euler. Application Research of Modified Emulsified Asphalt Binders in the Reconstruction and Expansion Project of the Wuhe Expressway [D]. Xi 'an: Chang' an University, 2019.