EVALUATION OF PAVEMENT DRAINAGE SYSTEMS MADE OF LAYERS OF OPEN-GRADED BITUMINOUS AGGREGATE MIXTURES

This study was aimed at evaluating the performance of pavement drainage systems in Illinois constructed with locally available aggregate sources. The study was limited to investigating the use of open-graded, hot-mixed bituminous aggregate mixtures in pavement drainage systems. A preliminary investigation was carried out in the laboratory to evaluate the permeability and the stability of open-graded bituminous aggregate mixtures. Specimens were prepared according to the procedures in ASTM D1559. Permeability tests (in which a constant-head test that allowed the measurement of permeability at low heads was used) and stability tests were performed on the same specimen. From the results of the preliminary investigations, six test pavements incorporating different design concepts were tested at the University of Illinois test track. Dynamic loading was applied to the test pavements, and water was passed through the open-graded bituminous aggregate drainage layers to simulate surface and lateral infiltration. Permeability tests at a constant head were carried out regularly on the pavement test sections. The progress of rutting in the test pavements was also recorded. Results of these limited tests indicate that open-graded bituminous aggregate mixtures possess a high order of permeability and that care must be taken to prevent the migration of subgrade fines into these aggregate layers if satisfactory drainage is to be achieved. This paper discusses methods that can be used to ensure satisfactory performance of pavements made of open-graded aggregates.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 49-63
  • Monograph Title: FROST, MOISTURE, AND EROSION
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00099654
  • Record Type: Publication
  • ISBN: 0309023807
  • Files: TRIS, TRB
  • Created Date: Nov 5 1975 12:00AM