Journal article
Rheological properties and chemical analysis of nanoclay and carbon microfiber modified asphalt with Fourier transform infrared spectroscopy
Construction & building materials, Vol.38, pp.327-337
01/2013
Handle:
https://hdl.handle.net/2376/120253
Abstract
► Asphalt binders blended with four nano/micro-modifiers were used. ► The complex shear modulus was measured with DSR. ► The chemical bonding of asphalt binders was analyzed through FTIR. ► The addition of four modifiers can delay the aging and oxidation effect.
This work aims to improve the rutting and fatigue cracking resistance of asphalt binders using selected nano- or micro-sized materials and to shed light on the microstructure changes induced by such modification to asphalt binders. The four modifiers (Nanomer I.44P, carbon microfiber, non-modified nanoclay and polymer modified nanoclay) were added into the control asphalt binder (PG 58-34). The Superpave™ tests and Fourier transform infrared spectroscopy (FTIR) measurements were conducted for obtaining the complex shear modulus G* and microstructure distribution of modified asphalt binders. Meanwhile, the short-term and long-term aging processes of asphalt binders are simulated by rolling thin film oven (RTFO) and pressure aging vessel (PAV) tests. From the dynamic shear rheometer (DSR) and FTIR tests results, the complex shear modulus G* values of nano- or micro-materials (Nanomer I.44P, non-modified nanoclay and carbon microfiber) modified asphalt binders increase, and the performance of resistance to rutting is improved compared to the control asphalt binder. The addition of polymer modified nanoclay (PMN) into the control asphalt binder decreases the complex shear modulus, and enhances the resistance to fatigue cracking. Moreover, the addition of four modifiers into the control asphalt binder can delay and weaken the aging and oxidation effect.
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Details
- Title
- Rheological properties and chemical analysis of nanoclay and carbon microfiber modified asphalt with Fourier transform infrared spectroscopy
- Creators
- Hui Yao - School of Civil Engineering and Architecture, Central South University, Changsha, Hunan 410075, ChinaZhanping You - Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931-1295, USALiang Li - School of Civil Engineering and Architecture, Central South University, Changsha, Hunan 410075, ChinaShu Wei Goh - Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931-1295, USAChee Huei Lee - Department of Physics, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931-1295, USAYoke Khin Yap - Department of Physics, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931-1295, USAXianming Shi - Western Transportation Institute and Civil Engineering Department, Montana State University, Bozeman, MT 59717-4250, USA
- Publication Details
- Construction & building materials, Vol.38, pp.327-337
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900612855401842
- Language
- English
- Resource Type
- Journal article