GOOD SURFACE PREPARATION - THE KEY TO EFFECTIVE CONCRETE REPAIRS

A description is given of high pressure water jetting and its uses. Traditional methods for removing damaged concrete have disadvantages where steel reinforcements exist and where the work is overhead. High pressure water jetting is still being developed but has proved cost effective and efficient. Details are given of the techniques used which involve a combination of pressure and volume depending on the individual situation and usually the experience of the operator. Equipment, water volumes and clothing are also discussed. The use of the technique during repairs to the underside of the Tyne tunnel roadway, in building a diaphragm wall for the Stevenston outfall works (Strathclyde) and for resurfacing work in sewage treatment plants is also described. Rates of cutting various materials by means of "jetnife", a water/abrasive mixture are given. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00105317
• Corporate Authors:

  Palladian Publications Limited

  11 Grosvenor Crescent
  London,   England 
• Authors:
  • Donaldson, M
• Publication Date: 1987-10

Media Info

• Pagination: p. 24-27
• Serial:
  • CONCRETE
  • Volume: 21
  • Issue Number: 10
  • Publisher: THE CONCRETE SOCIETY
  • ISSN: 0010-5317

Subject/Index Terms

• TRT Terms: Clothing; Concrete construction; Concrete structures; Cost effectiveness; Equipment; Hydraulic jetting; Repairing; Surface preparation; Water
• ITRD Terms: 3604: Breaking up; 4755: Concrete; 224: Cost; 5911: Efficiency; 3674: Equipment; 3643: Hydraulic jetting; 5412: Pressure; 3635: Repair; 8119: United Kingdom; 4355: Water
• Subject Areas: Construction; Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 00470136
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jul 31 1988 12:00AM