THE APPLICATION OF CHEMICAL GROUTS TO GROUND CONSOLIDATION

The author gives a brief history of the development of this process which, until recently, was mostly based on the gelling of sodium silicate solution by the use of calcium chloride. Details are given of the two-shot methods that have been developed to inject the chemical into the ground and of typical equipment and methods used. This is followed by an account of the one shot method which has subsequently been developed and which makes use of chemicals that slow down the gelling process. After listing the requirements of a one-shot silicate grout, the author points out that they often exhibit undesirable characteristics for some applications. Alternative grouts are next discussed, these include a grout based on sulphite lye, acrylic polymers and other resins, such as certain tannins, which have a viscosity approaching that of water and can therefore be used to penetrate silty sands. The conclusion deals with the selection of grouts for particular applications, (referring to the guide specifications set up by the American Society of Civil Engineers) and to the choice of equipment. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00174653
• Corporate Authors:

  Foundation Publications Limited

  7 Ongar Road
  Brentwood CM15 9AU, Essex,   England 
• Authors:
  • Plaisted, A C
• Publication Date: 1974-7

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 42-44
• Serial:
  • GROUND ENGINEERING
  • Volume: 7
  • Issue Number: 4
  • Publisher: EMAP CONSTRUCT LIMITED
  • ISSN: 0017-4653

Subject/Index Terms

• TRT Terms: Calcium chloride; Chemicals; Colloids; Consolidation; Consolidations; Grout; Grouting; Permeability; Polymers; Silica gel; Silicates; Sodium; Sodium silicate; Soil compaction; Soil stabilization; Soils; Sulfites; Synthetic resins
• Uncontrolled Terms: Soil consolidation
• Old TRIS Terms: Chemical consolidation; Soil compacting
• ITRD Terms: 7315: Calcium chloride; 7175: Colloid; 5791: Consolidation (soil); 4729: Grout; 7303: Silicate; 7197: Sodium; 4156: Soil; 7300: Sulphite; 7460: Synthetic resin
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00096674
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Aug 27 2000 12:00AM