ASR (AUTOMOTIVE SHREDDER RESIDUE) MODIFIED ASPHALT FOR BETTER QUALITY ROADS

When scrap automobiles are shredded to recover the ferrous and non-ferrous metals for recycling, a huge quantity of non-metallic residue is generated. The residue commonly called Automotive Shredder Residue (ASR) or "Fluff" is disposed of in landfills. Since ASR mostly contains plastic/rubber related materials, and addition of plastic and scrap rubber from waste tires as a road material has been proven to be effective in solving existing pavement related problems, attempts were made to examine the feasibility of ASR as a road material additive. The objective of this research was to study the effect of ASR on the modification of asphalt binders and asphalt pavement mix properties for better road performance. The asphalt (two grades 58-100 and 200-300) was mixed with a requisite amount of ASR (10, 15, 20, wt %) and mixed for one hour at 375 degrees F. As a part of compatibility study, glass transition temperature (Tg) and microstructure of ASR, asphalt and ASR modified asphalt were determined. ASR modified asphalt binders were evaluated by performing dynamic mechanical analysis. ASR modified asphalt mix was evaluated by Marshall stability testing. For the covering abstract, see IRRD 890379.

Language

  • English

Media Info

  • Features: References;
  • Pagination: 13 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00739482
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-86050-296-1
  • Files: ITRD
  • Created Date: Aug 28 1997 12:00AM