Rheological properties and chemical analysis of nanoclay and carbon microfiber modified asphalt with Fourier transform infrared spectroscopy
作者： Hui Yao , Zhanping You , Liang Li , Shu Wei Goh , Chee Huei Lee
DOI: 10.1016/J.CONBUILDMAT.2012.08.004
关键词:
摘要: Abstract This work aims to improve the rutting and fatigue cracking resistance of asphalt binders using selected nano- or micro-sized materials shed light on microstructure changes induced by such modification binders. The four modifiers (Nanomer I.44P, carbon microfiber, non-modified nanoclay polymer modified nanoclay) were added into control binder (PG 58-34). Superpave™ tests Fourier transform infrared spectroscopy (FTIR) measurements conducted for obtaining complex shear modulus G * distribution Meanwhile, short-term long-term aging processes are simulated rolling thin film oven (RTFO) pressure vessel (PAV) tests. From dynamic rheometer (DSR) FTIR results, values micro-materials microfiber) increase, performance is improved compared binder. addition (PMN) decreases modulus, enhances cracking. Moreover, can delay weaken oxidation effect.
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