OPTIMIZING WORKABILITY AND EXPANSION OF A SALT-SATURATED CONCRETE

In experiments with an expansive salt-saturated concrete (esc), time of setting was controlled by amount of sodium citrate used. The rheologic and physical properties required of esc could not be achieved using conventional high-range water-reducing admixtures, such as melamine or naphthalene formaldehyde condensates. Within a fixed range of citrate percentages, expansivity of the concrete is proportional to the amount of citrate used. The desired level of expansion results from delaying formation of ettringite until after formation of a rigid structure in the paste. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Wakeley, L D
• Publication Date: 1987-9

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 723-733
• Serial:
  • Cement and Concrete Research
  • Volume: 17
  • Issue Number: 5
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Concrete; Ettringite; Expansion; Physical properties; Salts; Workability
• Uncontrolled Terms: Concrete properties
• Old TRIS Terms: Citrates
• ITRD Terms: 4736: Admixture; 4755: Concrete; 6720: Expansion; 4714: Mix design; 5442: Rheology; 4723: Setting (concrete); 7316: Sodium chloride; 5414: Time; 5941: Workability
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00478763
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jan 31 1989 12:00AM