NEW CHEMICALS SPEED CONCRETE REPAIRS

This article provides some guidelines for selecting concrete repair materials, then discusses one of the best-known of the new repair materials--magnesium-phosphate based chemical-action concrete. Magnesium-based repair materials are formulated to produce an exothermic reaction when mixed with water. Composed of a blend of magnesium oxide and ammonium dihydrogen phosphate, different mixtures are often available for use in various weather conditions, including "hot-weather" formulas which contain a special integral retarder to ease work in warmer temperatures. Faster repair times and lower traffic control costs offset the slightly higher cost of these materials. Guidelines to be followed when using these magnesium phosphate-based materials are outlined.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03620506
• Corporate Authors:

  Cahners Publishing Company

  275 Washington Street
  Newton, MA  United States  02158-1630
• Authors:
  • Gulyas, B
• Publication Date: 1990-10

Media Info

• Features: Photos;
• Pagination: p. 36-37
• Serial:
  • Highways and Heavy Construction
  • Volume: 133
  • Issue Number: 13
  • Publisher: Cahners Publishing Company
  • ISSN: 0362-0506

Subject/Index Terms

• TRT Terms: Bridge decks; Concrete; Concrete pavements; Guidelines; Inorganic phosphates; Magnesium compounds; Pavement maintenance; Pavement overlays; Repairing; Utilization
• Uncontrolled Terms: Magnesium phosphate; Repairs; Selecting
• Old TRIS Terms: Concrete products
• Subject Areas: Highways; Materials; Research; I32: Concrete;

Filing Info

• Accession Number: 00601431
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 30 1990 12:00AM