HAMPSHIRE'S CONCRETE GUINEA-PIG ON THE ROAD

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

• Features: Photos;
• Pagination: p. 20-21
• Serial:
  • Surveyor - Public Authority Technology
  • Volume: 154
  • Issue Number: 4559
  • Publisher: IPC Building and Contract Journals Limited

Subject/Index Terms

• TRT Terms: Continuous structures; Continuously reinforced concrete pavements; Joint construction; Joints (Engineering); Overlays (Pavements); Pavements; Reinforced concrete; Repairing; Riding qualities; Rigid pavements; Slip form pavers; Slip form paving; Smoothness; Spalling; Steel wire fabrics; Strength of materials; Strengthening (Maintenance)
• Uncontrolled Terms: Repairs
• Geographic Terms: United Kingdom
• ITRD Terms: 9006: Continuous; 3071: Evenness; 2998: Joint (structural); 4794: Reinforced concrete; 2964: Rigid pavement; 3660: Slip form paver; 3096: Strengthening (pavement); 8119: United Kingdom
• Subject Areas: Construction; Highways; Maintenance and Preservation; Pavements; I61: Equipment and Maintenance Methods;

Filing Info

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