In a growing number of areas in the United States, it is becoming increasingly advantageous to recycle old portland cement concrete. The momentum for recycling has been primarily generated in areas where there is a shortage of, or a complete lack of, supplies of aggregates meeting present day quality standards. Another equally important factor is the problem of solid waste disposal, particularly in urban areas. A reduction in construction costs and conservation of energy have also sparked interest in recycling. Under the recycling concept, existing roadways, airport pavements or any suitable waste concrete becomes a readily available source for producing aggregates. Laboratory research and experience at several recent projects have proven that recycling concrete into aggregate for use in new concrete is feasible and should be considered whenever quality aggregates are not locally available or waste disposal of concrete rubble is costly. (Author)

Media Info

  • Features: References; Tables;
  • Pagination: p. 431-444

Subject/Index Terms

Filing Info

  • Accession Number: 00334274
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS, USDOT
  • Created Date: Sep 16 1981 12:00AM