THE DESIGN OF A FLEXIBLE SURFACE MIX FOR USE AT BRIDGE EXPANSION JOINTS. BRIDGE MANAGEMENT. INSPECTION, MAINTENANCE, ASSESSMENT AND REPAIR. PAPERS PRESENTED AT THE FIRST INTERNATIONAL CONFERENCE ON BRIDGE MANAGEMENT, UNIVERSITY OF SURREY, GUILDFORD, MARCH 28-30, 1990

Leakage at bridge joints causes corrosion and enhanced by rock-salts has caused major structural problems in the infrastructure. Development of a flexible surfacing material was considered to be a possible alternative to restrict the ingress of water, i.e. the material could accommodate the changes in movement experienced without cracking. This paper reports the work carried out in designing a flexible surfacing mix known as 'H-MAC'. It initially summarises the requirements of bridge joints and the use of conventional surfacing methods. Using the limitations of existing materials and the structural requirements of the joint, the development of the flexible mix is outlined. Comparative laboratory testing is discussed using various binder types and aggregate gradings. These resulted in a single sized 6.3/3.35 mm mix using 23% Icosit Membrane H as a binder. Bridge joint trials were carried out using this prototype mix and the results reported.(A) For the covering abstract of the conference see IRRD 830553.

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  • Corporate Authors:

    Elsevier Science Publishers

    Crown House, Linton Road
    Barking, Essex IG11 8JU,   England 
  • Authors:
    • WOODSIDE, A R
    • WOODWARD, WDH
  • Publication Date: 1990

Language

  • English

Media Info

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Filing Info

  • Accession Number: 00606680
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 1-85166-456-4
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM