EXPERIMENTAL AC OVERLAYS OF PCC PAVEMENT

A series of experimental asphalt concrete (AC) overlays was constructed over an existing distressed portland cement concrete pavement on Interstate 80 near Boca, California. The experimental overalys included rubberized dense-graded AC, rubberized open-graded AC, a rubber flush coat interlayer, dense-graded AC with short polyester fibers and Bituthene interlayer strips. The report presents a description and discussion of AC mix batching, construction observations, laboratory testing, overlay coring, and initial performance evaluation. Periodic inspections of the overlays will be conducted to evaluate performance and to determine their relative effectiveness in providing resistance to surface abrasion (chain wear) and cracking. In the initial inspection after one winter of service, the rubberized AC test sections exhibited minor surface raveling. All of the other sections wee in excellent condition. (FHWA)

• Corporate Authors:

  California Department of Transportation

  Transportation Laboratory
  5900 Folsom Boulevard
  Sacramento, CA  United States  95819

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Smith, R D
• Publication Date: 1983-11

Media Info

• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Abrasion resistance; Asphalt concrete; Concrete pavements; Core samples; Laboratory tests; Overlays (Pavements); Pavement performance; Paving; Polyester resins; Portland cement concrete; Rubberized bitumen
• Uncontrolled Terms: Batching
• Old TRIS Terms: Coring
• Subject Areas: Construction; Highways; Materials; Pavements; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00388831
• Record Type: Publication
• Report/Paper Numbers: FHWA-CA-TL-83-07 Intrm Rpt.
• Contract Numbers: F81TL03
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Sep 28 1984 12:00AM