Preparation of temperature-sensitive slow-release snowmelt agent by UV-irradiation grafting method
Source abstract
Abstract
To achieve temperature-control or intelligent-release objectives, a slow-release salt-storage snowmelt agent (TSSA) microcapsule was prepared by UV-irradiation grafting method. Combined with swelling and contraction properties of a temperature-sensitive hydrogel, the TSSA exhibited a temperature sensitive slow-release function, excellent permeability and release difference at about 25°C. Conductivity test of its asphalt concrete sample mixed with TSSA (named AC-TSSA) showed that, by adding 4 wt% TSSA equal volume replacement of mineral powders, the conductivity of the soaking solution of AC-TSSA decreased by 56.1% after soaking for 10 days. After 10 days soaking of AC-TSSA, the increase rate of conductivity was stabled at 0.09 mS·cm−1·h−1. The high temperature stability and water stability of AC-TSSA with 5 wt% TSSA equal volume replacement of mineral powders showed that the dynamic stability and residual strength ratio increased by 1.3% and 1.1%, respectively. Accordingly, the utilization rate of snowmelt agent is expected to be significantly improved.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Surface Modification and Superhydrophobicity · Smart Materials for Construction · Asphalt Pavement Performance Evaluation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Southeast University
Funding
The National Natural Science Foundation of China
References (23)
Show source-provided references
1. 10.1016/S0927-7757(98)00753-510.1016/S0927-7757(98)00753-5 ↗
2. 10.1016/j.trpro.2016.05.33610.1016/j.trpro.2016.05.336 ↗
3. Bai Y. J. (2012). Evaluate on the performance of snow melt salt asphalt mixture. Xi’an: Chang’ an University. (in Chinese).
4. 10.1016/S0168-3659(99)00060-710.1016/S0168-3659(99)00060-7 ↗
5. California Pavement Preservation Center. (2008). Use of Verglimit de-icing product on EI Dorado County Highway 50 PM 38.6 to 39.7.Report Number CP2C-2008-103TB.
6. 10.1002/jbm.a.1006210.1002/jbm.a.10062 ↗
7. 10.1080/0144164090341447010.1080/01441640903414470 ↗
8. Eskandarian, A., Blum, J., & Delaigue, P. (2005). The government approach to improving vehicle/highway transportation safety and its effectiveness. First International Conference on Traffic Accidents, Iran, University of Tehran.
9. 10.1016/S0168-3659(99)00181-910.1016/S0168-3659(99)00181-9 ↗
10. JTG E20-2011. (2011). Standard test methods of bitumen and bituminous mixtures for Highway Engineering. (in Chinese).
11. JTG E42-2005. (2005). Testing specification of aggregate for Highway Engineering. (in Chinese).
12. Liu, C. (1999). Relation between concentration of salt in aqueous solution and its conductivity. Chongqing University, (2), 128–132.
13. Liu Z. Z. (2013). Anti-freezing materials used in asphalt pavement and its application properties. Xi’an: Chang’ an University. (in Chinese).
14. 10.1061/(ASCE)MT.1943-5533.000108210.1061/(ASCE)MT.1943-5533.0001082 ↗
15. 10.1016/j.coldregions.2015.02.00910.1016/j.coldregions.2015.02.009 ↗
16. Shi X. & O’Keefe K. (2006). Anti-icing and pre-wetting: Improved methods for winter highway maintenance in North America. Transportation Research Board Meeting 2006 Annual Meeting.
17. 10.19721/j.cnki.1671-8879.2010.06.00410.19721/j.cnki.1671-8879.2010.06.004 ↗
18. 10.1016/j.conbuildmat.2017.03.07010.1016/j.conbuildmat.2017.03.070 ↗
19. 10.1002/mats.20030001310.1002/mats.200300013 ↗
20. 10.1016/j.conbuildmat.2019.11757910.1016/j.conbuildmat.2019.117579 ↗
21. Wuori A. F. (1993). Ice-pavement bond disbanding-surface modification and disbanding. Report: SHRP-H-664.
22. 10.1080/14680629.2023.218546610.1080/14680629.2023.2185466 ↗
23. 10.1016/j.conbuildmat.2018.10.18510.1016/j.conbuildmat.2018.10.185 ↗