A STUDY OF TIRE CHIPS AS ROAD CONSTRUCTION MATERIAL

the feasibility of using tire chips as aggregates in a cold mix, chunk rubber cold mix (CRCM), for use on low-volume roads was investigated. The results of this study show that the use of rubber chunks (up to a maximum 12.5 mm size) as a replacement for crushed-stone aggregates results in a weaker mix than a mix without rubber. Since chunk rubber is not as hard as the crushed-stone aggregates, the Marshall stability values of the asphalt-aggregate-tire chip mixes were consistently lower than the control mixes without any tire chips. It was also presumed that the tire chips tend to absorb some of the energy imparted to compact a CRCM sample resulting in a weaker aggregate structure than a mix with no tire chips in it. Addition of a Class C fly ash to a CRCM sample results in higher Marshall stability. A gap-graded CRCM with 2 percent chunk rubber and 10 percent fly ash with an optimum emulsion content of 7 percent showed the highest average Marshall stability of 1400 N.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 147-149

Subject/Index Terms

Filing Info

  • Accession Number: 00721868
  • Record Type: Publication
  • ISBN: 0965231003
  • Files: TRIS, STATEDOT
  • Created Date: Jun 11 1996 12:00AM