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Effects of Extraction Solvent, Fine Particles, and Reclaimed Asphalt Pavement Aggregate in Aging Determination of Asphalt Binder by ATR-FTIRS
Fourier transform infrared spectroscopy (FTIRS) is a rapid and nondestructive technique by which oxidative aging in asphalt binder can be evaluated for laboratory, plant, and field condition. In this study, effects of solvent intrusion, aggregate size, laboratory aging, and percentage of reclaimed asphalt pavement (RAP) binder on absorbance values of attenuated total reflectance (ATR) FTIRS were investigated. No significant difference in absorbance values were observed due to solvent (95% evaporation) and aggregate size (#200 passing). In the case of oxidative aging determination, both laboratory aged and RAP induced samples demonstrated a significant increase in oxidation signals. Laboratory aged pressure aging vessel (PAV) samples increased the sulfoxide and carbonyl oxidation approximately 26% and 33% where RAP binder induced samples increased the sulfoxide oxidation 211% (20% RAP) and 378% (80% RAP) and carbonyl oxidation 49% (20% RAP) and 221% (80% RAP) respectively. The results indicated the efficiency, viability, and potential of using ATR- FTIRS in laboratory conditions as well as for aging due to RAP binder in field condition.
Effects of Extraction Solvent, Fine Particles, and Reclaimed Asphalt Pavement Aggregate in Aging Determination of Asphalt Binder by ATR-FTIRS
Fourier transform infrared spectroscopy (FTIRS) is a rapid and nondestructive technique by which oxidative aging in asphalt binder can be evaluated for laboratory, plant, and field condition. In this study, effects of solvent intrusion, aggregate size, laboratory aging, and percentage of reclaimed asphalt pavement (RAP) binder on absorbance values of attenuated total reflectance (ATR) FTIRS were investigated. No significant difference in absorbance values were observed due to solvent (95% evaporation) and aggregate size (#200 passing). In the case of oxidative aging determination, both laboratory aged and RAP induced samples demonstrated a significant increase in oxidation signals. Laboratory aged pressure aging vessel (PAV) samples increased the sulfoxide and carbonyl oxidation approximately 26% and 33% where RAP binder induced samples increased the sulfoxide oxidation 211% (20% RAP) and 378% (80% RAP) and carbonyl oxidation 49% (20% RAP) and 221% (80% RAP) respectively. The results indicated the efficiency, viability, and potential of using ATR- FTIRS in laboratory conditions as well as for aging due to RAP binder in field condition.
Effects of Extraction Solvent, Fine Particles, and Reclaimed Asphalt Pavement Aggregate in Aging Determination of Asphalt Binder by ATR-FTIRS
Noor, L. (author) / Wasiuddin, N. M. (author)
International Conference on Transportation and Development 2018 ; 2018 ; Pittsburgh, Pennsylvania
2018-07-12
Conference paper
Electronic Resource
English
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