Title :
Compound modification of asphalt with PVC waste and SBS
Author :
Bin Huang ; Liping Ma ; Wenjuan Xu ; Ren Yang
Author_Institution :
Fac. of Environ. Sci. & Eng., Kunming Univ. of Sci. & Technol., Kunming, China
Abstract :
The asphalt was modified with waste PVC and SBS, adopt 2%SBS+PVC and 4%SBS+PVC (the percentage of total asphalt system) two processes to compound modification of 90# asphalt. The softening point test, penetration at 25°C test, ductility at 5°C test and PI index were performed to characterize the modification effects. The results show that, the waste PVC/SBS compound asphalt can effectively increase both high and low temperature performance, remedy the shortage of waste PVC modified asphalt. Besides, infrared absorption spectroscopy analysis was carried out, we reason that modification mechanism was mainly for the multiphase three-dimensional network graft´s formation between stabilizer, modifier and asphalt, caused internal chemical composition change of modified asphalt.
Keywords :
asphalt; ductility; impact (mechanical); infrared spectra; polymers; waste handling; PI index; PVC waste; SBS; asphalt; compound modification; ductility; infrared absorption spectroscopy; internal chemical composition change; multiphase three-dimensional network graft; penetration; softening point test; temperature 25 degC; Absorption; Asphalt; Chemicals; Compounds; Polymers; Scattering; PVC; SBS; compound modification; modification mechanism; modified asphalt;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5965182
