GROUTING AS A REPAIR AND STRENGTHENING TECHNIQUE

This paper examines the benefits and difficulties inherent in the use of modern grout formulae for masonry repair. It first outlines the state of knowledge about grouting technology, and reviews its implied demands and cautions. The different types of grout now available are lime-based, cement-based, ultrafine-cement-based, microcement-based, or polymeric. Reference values for the rheological properties of each of these types of grouts are given: dynamic viscosity, minimum injectable dimension of voids, compressive strength, and tensile strength. Their mixing procedures and compatibility with historic buildings are analysed. Secondly, grouting efficiency is discussed, with respect to its two main parameters, the type of grout and type of masonry. Descriptions are given of methods to check the expected efficiency, and optimise the technological procedure. It is important to emphasise that double-leaf masonry grouting is expected to be about 150% more efficient than solid masonry grouting. After grouting, non-destructive tests, usually sonic and electrical resistivity measurements, must be conducted to test its effectiveness. For grouting with masonry, a grouting design should be fully calibrated on site, and grouting work should be supervised closely to ensure effective quality control.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09670726
• Corporate Authors:

  PALLADIAN PUBLICATIONS LTD

  THE OLD FORGE
  ELSTEAD, SURREY  United Kingdom  GU8 6DD
• Authors:
  • GIL, N P
• Publication Date: 1996

Language

• English

Media Info

• Features: References;
• Pagination: p. 24-6
• Serial:
  • CONSTRUCTION REPAIR
  • Volume: 10
  • Issue Number: 3
  • Publisher: PALLADIAN PUBLICATIONS LTD
  • ISSN: 0967-0726

Subject/Index Terms

• TRT Terms: Calcium oxide; Cement; Compression; Electrical resistance; Grout; Masonry construction; Measurement; Polymerization; Repairing; Rheology; Strength of materials; Tension; Test procedures
• Uncontrolled Terms: Injection (Materials)
• ITRD Terms: 4758: Cement; 5532: Compression; 4729: Grout; 3617: Injection (mater); 4574: Lime; 4529: Masonry; 6136: Measurement; 7481: Polymerization; 3635: Repair; 6916: Resistance (electr); 5442: Rheology; 5544: Strength (mater); 5502: Tension; 6288: Test method
• Subject Areas: Maintenance and Preservation;

Filing Info

• Accession Number: 00729172
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 12 1996 12:00AM