ILLINOIS' EXPERIENCE WITH A RECYCLED CONCRETE INLAY. PROCEEDINGS, 4TH INTERNATIONAL CONFERENCE ON CONCRETE PAVEMENT DESIGN AND REHABILITATION, PURDUE UNIVERSITY, APRIL 18-20, 1989

This paper describes a research project which evaluated the feasibility of recycling a deteriorated concrete pavement. A cracked and badly faulted 24-foot wide jointed reinforced concrete pavement was selected for the study. Originally constructed in 1964, the pavement cross-section consisted of 10 in. of concrete over 6 in. of aggregate subbase. A 27-ft-wide inlay was constructed to take advantage of the bituminous shoulders that had been reconstructed in 1978. The two northbound lanes of the four lane project were constructed in 1986, and the two southbound lanes completed in 1987. The construction sequence consisted of removing the inner 1 1/2 ft of each shoulder, breaking the pavement with a diesel pile driver, crushing the broken concrete, cement stabilizing the aggregate subbase in-place to a depth of 7 in., and constructing a new 10-in. continuously reinforced concrete pavement. The recycled concrete mix contained both coarse and fine crushed concrete. Small amounts of natural sand and fly ash were added for workability. The crushed concrete met standard quality requirements with the exception of the sodium sulfate soundness test. The mix properties of the recycled concrete were comparable to those of a conventional concrete mix. The Illinois Department of Transportation is monitoring the long-term performance of the pavement. The feasibility of the recycling process and the cost savings potentially associated with such a process indicate that recycling deteriorated concrete pavements is yet another viable rehabilitative technique.

• Corporate Authors:

  Purdue University

  School of Civil Engineering, 550 Stadium Mall Drive
  West Lafeyette, IN  United States  47907

  Federal Highway Administration

  Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
  McLean, VA  United States  22101
• Authors:
  • Van Matre, F R
  • Schutzbach, A M
• Publication Date: 1989-4

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 625-639
• Serial:
  • Publication of: Purdue University
  • Publisher: Purdue University

Subject/Index Terms

• TRT Terms: Concrete pavements; Continuously reinforced concrete pavements; Cost effectiveness; Feasibility analysis; Monitoring; Pavement maintenance; Pavement performance; Recycling; Reinforced concrete pavements; Time duration
• Uncontrolled Terms: Long term
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00486370
• Record Type: Publication
• Report/Paper Numbers: FHWA-RD-89-208, 3C1B1144
• Contract Numbers: DTFH61-87-C-00140
• Files: TRIS, USDOT
• Created Date: Aug 31 1989 12:00AM