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FULL-SCALE EXPERIMENT ON A GRAVEL ROAD AT VADSTENA TO STUDY THE EFFECT OF IN PLACE STABILIZATION WITH CEMENT ON BEARING CAPACITY AND TRANSVERSE CRACK FORMATION

CEMENTSTABILISERINGSPROVVAGEN VADSTENA 1969

This report summarizes the results from a long-term field-experiment designed to study the structural life of a gravel road strengthened by in-place stabilization with cement and provided with a thin bituminous pavement. In order to study two different methods to minimize the frequency of transverse cracks reflected from the stabilized layer, some of the test sections were given a one-passage treatment with a vibrating sheepsfoot roller at the construction. One some test sections a layer of oil gravel was placed on top of the stabilized road before the wear course of rolled asphalt was laid. The bearing capacity recorded during the first 3 years was as good for the cement stabilized sections not treated with vibrating sheepsfoot roller, was for a reference section constructed in a common way with unbound gravel layer, hot mix road base and rolled asphalt wearing course laid on the top of the existing gravel road. After this initial period the strength of the road was impaired. The study of the frequency of transverse cracks showed that for this very type of cement stabilizing the frequency was so low and the crack width so small that the problem, if any, to maintain cracks could be practically neglected. The study indicates that there will be no need for any special arrangement at the construction of mixed-in-place stabilized layers, like treatment with a vibrating sheepsfoot roller, to avoid future maintenance problems with reflected transverse cracks.

Media Info

  • Features: Appendices; References; Tables;
  • Pagination: 20 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00157211
  • Record Type: Publication
  • Report/Paper Numbers: Report No. 104
  • Files: TRIS
  • Created Date: Aug 15 1977 12:00AM