Although spending on UK road maintenance continues to rise, this years allocation is L110m, the national road maintenance condition survey published in March 1984 shows signs of deterioration for the first time since 1977. At least three per cent of the network needs to be replaced annually for the next five years. This level is only being reached on motorways at the present. Because maintenance finance is unlikely to increase in real terms, attempts are being made to improve efficiency by recycling existing material, either in situ or by central recycling plants. The main disadvantages with recycled material are quality and cost; cores and in situ sampling are needed in adequate testing of the surface before mining. The use of precoated chippings in the UK prevents the recycling of layers deeper than the 40mm wearing course. It is claimed that proper compaction of surfaces, reducing air voids by two per cent, could double the life of a road. Cost savings can also be made through contractural efficiency. (TRRL)

Media Info

  • Features: Photos;
  • Pagination: p. 27-28
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00395064
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Oct 31 1985 12:00AM