RECYCLED MATERIAL FOR AGGREGATE BASE

ONE OF THE BID ITEMS FOR CONSTRUCTION OF A MAJOR LOS ANGELES FREEWAY INTERCHANGE ENTAILS PLACEMENT OF 61,000 TONS OF CLASS 2 AND 3 AGGREGATE BASE. THE CONTRACTOR IS USING AN ON-SITE CRUSHER FOR PCC AND AC RUBBLE FROM DEMOLISHED STRUCTURES, PARKING LOTS, AND ROADS. MUCH OF THE RESPONSIBILITY FOR SEGREGATION FALLS ON THE DOZER OPERATOR AND TWO MEN PLACED ALONG THE FEED BELT. AFTER ITS INITIAL CRUSHING THE RUBBLE UNDERGOES A SINGLE SCREENING WITH A ONE- INCH MESH. THE ESTIMATED COST OF PROCESSING WAS 80--90found PER TON, COMPARED WITH AN AVERAGE BID PRICE OF $2.30 FOR CLASS 3 AGGREGATE BASE IN CALIFORNIA IN 1969. IN ADDITION, THE METHOD HAS AN ENVIRONMENTAL SIDE BENEFIT.

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 1-7
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00217914
  • Record Type: Publication
  • Files: TRIS, USDOT
  • Created Date: Apr 23 1973 12:00AM