Investigation of the Effect of Recycled Asphalt Pavement Material on Permeability and Bearing Capacity in the Base Layer

The purpose of this research was to investigate the effects of recycled asphalt pavement (RAP) and cement content on the permeability and bearing capacity characteristics of aggregate base courses. Mixtures containing untreated RAP ranging between 0 and 100 percent and 1, 2, and 3% cement-treated RAP were subjected to laboratory tests (bitumen content, sieve analysis, modified proctor, soaked California bearing ratio (CBR), and constant-level permeability tests). The results showed that, as the RAP percentage in the mixture increased, CBR values decreased considerably. Moreover, there is a linear increase in the CBR values with cement treatment. Optimum moisture contents (OMC) and maximum dry densities (MDD) showed a decreasing trend. Increasing the cement percentages in 100% RAP blend increases the OMC and MDD values. The permeability of RAP showed a decrease as the percentage of RAP and cement increased in blends. The study showed that the CBR value of the 20% RAP blend is also obtained in the 100% RAP/3% cement-treated blend. Thus, it has been understood that cement is a suitable material in order to increase the use of RAP. In addition, the increase in the percentage of RAP and cement made the base course more impermeable.

• Record URL:
  • https://doi.org/10.1155/2018/2860213
• Record URL:
  • https://doi.org/10.1155/2018/2860213
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16878086
• Supplemental Notes:
  • © 2018 Ayşegül Güneş Seferoğlu et al.
• Authors:
  • Seferoğlu, Ayşegül Güneş
  • Seferoğlu, Mehmet Tevfik
  • Akpınar, Muhammet Vefa
• Publication Date: 2018

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: Article ID 2860213
• Serial:
  • Advances in Civil Engineering
  • Volume: 2018
  • Publisher: Wiley
  • ISSN: 1687-8086
  • EISSN: 1687-8094
  • Serial URL: https://onlinelibrary.wiley.com/journal/7074
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Asphalt pavements; Base course (Pavements); Bearing capacity; California bearing ratio; Cement; Permeability; Recycled materials
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01660696
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 20 2018 9:36AM