Utilization of recycled asphalt concrete with different warm mix asphalt additives prepared with different penetration grades bitumen

ŞENGÖZ B., Oylumluoglu J.

Construction and Building Materials, vol.45, pp.173-183, 2013 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 45
  • Publication Date: 2013
  • Doi Number: 10.1016/j.conbuildmat.2013.03.097
  • Journal Name: Construction and Building Materials
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.173-183
  • Keywords: Chemical additive, Organic additive, Recycled asphalt pavement, Warm mix asphalt, Water containing additive
  • Uşak University Affiliated: No

Abstract

This paper describes the feasibility of utilizing three different warm mix asphalt (WMA) additives prepared with B50/70 bitumen with different percentages of recycled asphalt pavement (RAP). The mechanical properties of WMA containing RAP have been analyzed and compared with WMA without RAP. Following the determination of optimum RAP content along with the suitable WMA additive prepared at B50/70 bitumen, the grade of bitumen has been changed and the effects on the variation of RAP contents have been investigated. The results indicated that, WMA systems provides significant benefits with regards to the environment and that mixtures containing RAP exhibit performance level better than control mixtures. Moreover, it is possible to consider that an increment is seen in the content of RAP with using higher penetration grades bitumen prepared with the organic WMA additive. © 2013 Elsevier Ltd. All rights reserved.