A thin continuously reinforced concrete pavement has been used on the A3 near Horndean to overlay a 1600 M length of faulty concrete originally laid in 1946. Although the original construction was structurally sound, 'spalling' and 'stepping' at some joints led to below-standard riding quality. Half the 9 M wide continuous slab is 130 mm thick, the remainder is 110 mm thick. Reinforcement, at mid-depth in both cases, is of a high tensile steel welded fabric of lighter gauge and closer spacing than normal to minimise 'ripple' on the finished surface. Cross sections of longitudinal steel are approximately 0.6 per cent for the 130 mm thickness, and 0.7 per cent for the 110 mm overslab. Longitudinal restraint is provided by burdell-type expansion joints at either end. Full-width paving was carried out by a front-fed slip-form paver. (TRRL)

  • Corporate Authors:

    IPC Building and Contract Journals Limited

    Surrey House, 1 Throwley Way
    Sutton, Surrey SM1 4QQ,   England 
  • Authors:
    • Acton, P
  • Publication Date: 1979-10-25

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00309792
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Aug 5 1980 12:00AM