This report is a guide to the materials and methods generally used. Materials dealt with are: cement, epoxide resins, polyester resins, rubber latex, polyvinyl acetate. The most important properties of epoxide resins for repair work are very strong adhesion to sound surfaces, strength, resistance to chemical attack and impermeability. Repairs to spalled concrete are described. First loose concrete is cut away to expose sound material, exposed steel reinforcement should be protected quickly. Methods of making cement-based repairs and resin-based repairs are discussed. Methods of sealing cracks depend on whether further movement is expected. The use of spray-applied concrete (Gunite or shotcrete) is described. It adheres strongly to sound concrete surfaces and is widely used for building up areas such as walls and soffits, and for encasing structural members in which the concrete cover to the reinforcement is inadequate or has deteriorated. It is particularly useful for repair of structures damaged by fire or chemicals. Because of spread of material it is not an economical process for repairing isolated narrow members. Waterproofing problems, ranging from treatment of damp areas to stopping concentrated leaks, are also discussed. The publication does not deal with repairs to concrete roads or removal of superficial stains from concrete. (TRRL)

  • Availability:
  • Corporate Authors:

    Cement and Concrete Association

    Wexham Spring
    Slough SL3 6PL, Buckinghamshire,   England 
  • Authors:
    • ALLEN, RTL
  • Publication Date: 1978

Media Info

  • Features: Figures; Photos; References;
  • Pagination: 20 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00330846
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0 7210 0935 2
  • Report/Paper Numbers: No. 47.021 Monograph
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM