PERFORMANCE OF BITUMEN TREATED BASES

This paper describe how, today, one of the most serious problems of asphaltic surfaced pavements containing a stabilized base course is the occurrence of transverse cracking in the stabilized base and the associated propagation of cracks to the surface, which reduces the effective life of otherwise structurally sound pavements. Compared to cement stabilized bases, Bitumen Treated Bases (BTBs) may be relatively more flexible and more resistant to fatigue cracking. However, although BTBs have been used as structural pavement layers for more than 40 years, research in this area has been very scarce. This paper summarizes the results of laboratory tests recently carried out on a BTB mix in order to assess its performance properties in relation to compaction and workability, strength, resistance to rutting and permeability.

Language

  • English

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Filing Info

  • Accession Number: 00964342
  • Record Type: Publication
  • ISBN: 087659229X
  • Files: TRIS, ATRI
  • Created Date: Oct 15 2003 12:00AM