基于生态路面减排理念下的CeO<sub>2</sub>柱撑蒙脱土改性沥青及其催化性能研究

doi:10.11896/cldb.22040157

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Abstract The improvement of pavement durability and functional development are the current research hotspots in the field of road. The CeO₂ pillared montmorillonite (Ce-MMT) composite modifier was prepared by the liquid-phase precipitation method. By analyzing the structural composition and microscopic characterization, it was found that CeO₂ successfully entered the interlayer of montmorillonite to form a pillared structure, and the absorptive ability of the new composite material in the ultraviolet and visible light regions was significantly enhanced. The high and low-tempe-rature performance, anti-aging performance, and catalytic degradation efficiency of modified asphalt with different Ce-MMT content were also studied. The results show that Ce-MMT can effectively improve the high-temperature performance and the anti-aging performance of the asphalt, when the content range of the modifier is 4wt%—6wt%. Besides, the Ce-MMT modified asphalt with a content of 6% can degrade NO up to 50.8% after reacting for 120 min in the simulated automobile exhaust test. This study is based on the enhancement of the capability of functional pavement to actively degrade the residual exhaust gas in the road domain, and aims to promote the new development of green road field.

Key words： montmorillonite nano-pillar modified asphalt aging exhaust degradation

Published: 25 August 2022 Online: 2022-08-29

CLC number:

U414

Fund:National Natural Science Foundation of China (52174237), Innovative Project of Hunan Province (2020RC3039), Science Foundation for Outstanding Youth of Hunan Province (2022JJ10051) and Science and Technology Project of Changsha (kq2106042).

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	Articles by authors
	JIN Jiao
	LIU Mohan
	LIU Shuai
	CHEN Bozhen
	LIU Xinyu

Cite this article:

JIN Jiao,LIU Mohan,LIU Shuai, et al. Study on CeO₂ Pillared Montmorillonite Modified Asphalt and Its Catalytic Performance Based on the Emission Reduction of Ecological Pavement[J]. Materials Reports, 2022, 36(16): 22040157-7.

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http://www.mater-rep.com/EN/10.11896/cldb.22040157 OR http://www.mater-rep.com/EN/Y2022/V36/I16/22040157

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