In 1986, the Arizona Department of Transportation (ADOT) constructed a 3500-ft porous pavement experimental section on SR-87 in the Phoenix metropolitan area. The objectives of this project were to determine the constructability and subsequent performance of porous pavement as a drainage system and pavement structure in an urban area and a desert environment. The porous pavement test section has performed satisfactorily for five years. Although a slight decrease in the infiltration rate has occurred, both the infiltration rate and the storage capacity are above the design values. Visual observation during storm events has shown that the surface of the porous pavement section does not include sheet flow. This provides a marked difference in stripe delineation and pavement glare during night time inclement weather driving when compared to conventional pavement. However, Mu-meter skid test results for the porous pavement section are comparable to those of conventional pavements (control). Material tests conducted on the pavement components indicate that the Marshall stability, resilient modulus, and asphalt cement viscosity of the open graded asphalt concrete have increased with time. No cracking or significant surface deformation has occurred during the five years of service. Annual FWD testing was conducted to establish the changes in layer properties. To date, little change has occurred in the layer moduli except for the open graded subbase whose modulus has decreased with time. This phenomenon is unexplained at present. No unusual presence of moisture was detected in any layer of the pavement system. The subgrade moisture content has achieved equilibrium at less than the optimum content determined during the design process.

  • Corporate Authors:

    Arizona State University, Tempe

    College of Engineering and Applied Science
    Tempe, AZ  United States  85287

    Arizona Department of Transportation

    206 South 17th Avenue
    Phoenix, AZ  United States  85007

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Hossain, M
    • Scofield, L A
  • Publication Date: 1991-7

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 76 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00623607
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-AZ91-352
  • Contract Numbers: PL-1(41)352
  • Created Date: Jul 31 1996 12:00AM