This is a brief description of the construction under two contracts of 25 km of concrete dual carriageway of motorway M11 between London and Cambridge. An outline is given of the route, running roughly parallel to the existing main road A11, and bypassing several villages and towns. Some 3 M cubic metres of material was excavated, of which about 70 per cent was used for embankment construction. Pavement design consisted of unreinforced concrete slab 280 mm thick throughout with varying thickness of sub-base which was mainly of soil cement, mixed in place on the first contract using a purpose made cement spreader, and plant-mixed on the second. Transverse joints are at 5 M intervals. The details of carriageway construction include the use of a slip form paver on the first stretch of motorway, and a conventional rail-mounted concreting train on the second. The article also describes joint construction, mix design and manufacture of concrete. The two contracts have included the building of 29 structures, most of the bridges being standard "type", and the overbridges normally being of four-span design. (TRRL)

  • Availability:
  • Corporate Authors:

    Cement and Concrete Association

    Wexham Spring
    Slough SL3 6PL, Buckinghamshire,   England 

    Concrete Society

    Terminal House, Grosvenor Gardens
    London,   England 
  • Publication Date: 1979-12

Media Info

  • Features: Photos;
  • Pagination: p. 20-21
  • Serial:
    • Volume: 13
    • Issue Number: 12
    • ISSN: 0010-5317

Subject/Index Terms

Filing Info

  • Accession Number: 00310107
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jun 9 1980 12:00AM