CAUSES, MEASUREMENT AND PREVENTION OF PAVEMENT FORCES LEADING TO BLOWUPS

A survey of blowup activity in Ohio's concrete pavements was conducted. One hundred and seventy-two blowups of various severity were reported during 1975 and 1976. A survey of blowup literature in the Untied States was conducted and resulted in an extensive bibliography of material dealing with jointed concrete pavements. A method of measuring residual strains within a concrete pavement was developed. Strain gage rosettes are attached to the walls of a corehole by means of an installation tool which was invented for this project. The hole is over-cored and the relief strains are measured. Available theory has been adapted to allow computation of state of stress in the original slab at the level of the gages. Laboratory and field tests were conducted. Computer models of the overcore and an entire pavement slab were developed using the STRUDL package. Various temperature loadings and boundary conditions were studied.

  • Supplemental Notes:
    • Sponsored by Ohio DOT and conducted in cooperation with DOT, Federal Highway Adminsitration.
  • Corporate Authors:

    Society of Mechanical Engineers

    345 East 47th Street
    New York, NY  USA  10017
  • Authors:
    • Richards, A M
  • Publication Date: 1976-10

Media Info

  • Pagination: 131 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00176548
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-78-S068 Final Rpt., OHIO-DOT-10-76, FCP 45D2-434
  • Contract Numbers: Job No. 14290(0)
  • Files: NTIS, TRIS, ATRI, USDOT
  • Created Date: Jul 29 1978 12:00AM