Effect of Rejuvenating Agents on Performances of Aged SBS Modified Asphalt

Abstract:

Rejuvenating seal, widely used due to its economic benefits and convenience, is one of the preventive maintenance methods. The rejuvenating seal materials (RSM) work on the surface course of asphalt pavement. This paper described the effects of RSM on the physical properties and rheological properties of aged SBS modified asphalt (ASMA). Two RSM, R and C, were involved in this research. The dosage of each RSM was 2%, 4%, 6%, 8%, and 10% of ASMA by weight. Physical properties, including softening point, penetration and ductility, were tested. Rheological properties were carried out by means of dynamic shear rheometer (DSR). Results show that RSMs, R and C, have improved the low-temperature performance and fatigue resistance. R has more positive effect on low-temperature performance and fatigue resistance of ASMA compared to values of C.

• Periodical: Key Engineering Materials (Volume 599)
• Pages: 141-144
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.599.141
• Online since: February 2014
• Authors: Fei Guo*, Ling Pang, Zi Qiang Peng, Zu Huang Zhu
• Keywords: Aging, Performance, Rejuvenator Sealer Material, SBS Modified Asphalt

References

[1] N Prapaitrakul, T Freeman, C. J Glover, Analyze existing fog seal asphalts and additives, Texas: Texas Transportation Institute, (2005).

[2] T. F Fwa, Evaluation of engineering benefits of Rjseal, a report prepared for Kalvani international Pte Ltd (2006).

[3] J Brownridge, The role of an asphalt rejuvenator in pavement preservation: use and need for asphalt rejuvenation, Compendium of papers from the first international conference on pavement preservation, California, (2010) 351-64.

[4] R Romera, A Santamaria, J Pena，Rheological aspects of the rejuvenation of aged bitumen, J. Rheol Acta. 45 (2006) 474-8.

DOI: 10.1007/s00397-005-0078-7

[5] J Shen, Y Ohne, Determining rejuvenator content for recycling reclaimed asphalt pavement by SHRP binder specifications, J. Int J Pavement Eng. 3 (2002) 261-8.

DOI: 10.1080/1029843021000083685

[6] D Christopher, M. B Julian, Z. P You, Properties of recovered asphalt binder blended with waste engine oil: A preliminary study, J. Mater. Civ. Eng. (2011) 4399-06.

DOI: 10.1061/41186(421)433

[7] J. N Shen, N. A Serji, S. J Lee, HP-GPC characterization of rejuvenated aged CRM binders, J. Mater. Civ. Eng. 7 (2007) 515-22.

DOI: 10.1061/(asce)0899-1561(2007)19:6(515)

[8] J. T Lin, P. D Guo, J Xie, Effects of rejuvenator sealer materials on the properties of aged asphalt binder, J. Mater. Civ. Eng. 9 (2012) 1-15.

DOI: 10.1061/(asce)mt.1943-5533.0000702