Effect of Crumb Rubber-Modified Asphalt Properties on Its Storage Stability

The current research investigated the effect of the properties of the crumb rubber modified asphalt (CRMA) on its storage stability. This was carried out by investigating the influence of asphalt-crumb rubber modifier (CRM) interaction parameters (interaction time, interaction speed, and interaction temperature) on the CRM activities and how such activities affect the properties of CRMA resulting in changes in its storage stability. The CRM activities were investigated by dissolution tests and thermo gravimetric analysis (TGA) that were carried out on the extracted CRM after interaction with asphalt. The storage stability of the CRMA was carried out on the whole matrix (asphalt+CRM) as well as the liquid phase (asphalt after removal of CRM) of the modified binder. The asphalt-CRM interaction parameters were found to be essential in the modification of the properties of CRMA through controlling the swelling, dissolution and release of CRM components into the asphalt liquid phase. The control of the CRM activities significantly affected the storage stability of CRMA.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AFK10 Standing Committee on General Issues in Asphalt Technology. Alternate title: Effect of Crumb Rubber Modified Asphalt's Properties on Its Storage Stability.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Ragab, Mohyeldin
  • Abdelrahman, Magdy
• Conference:
  • Transportation Research Board 95th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2016-1-10 to 2016-1-14
• Date: 2016

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: 14p
• Monograph Title: TRB 95th Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Crumb rubber; Properties of materials
• Uncontrolled Terms: Interaction (Materials); Storage stability
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01593275
• Record Type: Publication
• Report/Paper Numbers: 16-6707
• Files: TRIS, TRB, ATRI
• Created Date: Mar 7 2016 5:18PM