COMPARISON OF RECYCLED ROAD CONSTRUCTION MATERIALS IN A FULL-SCALE PAVEMENT TEST

Decreasing availability of high quality materials, lack of disposal sites, and a higher conciousness for environmental issues led to the search for different possibilities to recycle road construction materials along with the evaluation of appropriate design methods and construction procedures. Therefore, the behaviour and the pavement response of different structures have been studied on a circular test facility for full-scale pavement tests. The test track, subdivided into different sections, provided the same conditions for all the structures, including climate, loading, and controlled groundwater level. The tested structures included hot mix and cold mix foundations with different percentages of recycled bituminous materials. The subgrade and all other conditions were the same for all the tested structures. Periodical observations, laboratory tests, and field measurements were carried out throughout the test period. Among them were measurements of rut depth, longitudinal profile, static and dynamic deflections, and temperatures at different depths. Additionally, strain measurements (using strain gauges placed between the layers) simultaneously with dynamic deflection measurements (using a opto-electronical system) took place at several stages of the project. Results are included.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 575-590
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00730076
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Nov 27 1997 12:00AM