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Petroleum Science and Technology Volume 32, 2014 - Issue 24
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Original Articles

The Effect of Surface-modified Nano-titania on the Ultraviolet Aging Properties of Bitumen

C. H. LiuKey Laboratory of Special Environment Road Engineering of Hunan Province, Changsha University of Science & Technology, Changsha, China
,
H. L. ZhangCollege of Civil Engineering, Hunan University, Changsha, ChinaCorrespondence[email protected]
,
S. LiKey Laboratory of Special Environment Road Engineering of Hunan Province, Changsha University of Science & Technology, Changsha, China
&
C. Z. ZhuCollege of Civil Engineering, Hunan University, Changsha, China
Pages 2995-3001 | Published online: 14 Nov 2014
 
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Abstract

The effect of surface modification of nano-titania on ultraviolet (UV) aging properties of bitumen was investigated. The results show that γ-(2,3-epoxypropoxy) propytrimethoxysilane is bound on the surface of nano-titania according to Fourier transform infrared spectroscopy analysis. The dispersion stability of nano-titania in bitumen is improved by surface modification of nano-titania. Viscosity aging index values and carbonyl indexes of the bitumen are decreased by adding nano-titania. After surface modification, the UV aging resistance of nano-titania modified bitumen can be further improved. The result suggests that nano-titania can be effectively used as a modifier to improve the UV aging resistance of bitumen.

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