INFLUENCE OF ALKALI ON CARBONATION OF CONCRETE, PART 1, PRELIMINARY TESTS WITH MORTAR SPECIMENS

Mortar specimens were made using a total of five kinds of ordinary portland cement including two of different na2o-equivalent alkali content (r2o) and three kinds of varying r2o to a maximum of 1.5% through addition of naoh, and accelerated carbonation tests were performed. It was found that the rate of carbonation becomes higher the greater the alkali content of cement, and it was shown through simulation experiments that this trend becomes prominent when there is movement of pore solution. (a)

• 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:
  • Kobayashi, K
  • Uno, Y
• Publication Date: 1989-9

Language

• English

Media Info

• Pagination: p. 821-6
• Serial:
  • Cement and Concrete Research
  • Volume: 19
  • Issue Number: 5
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Accelerating agents; Alkali; Carbonation; Cement; Chemical concentration; Hydroxides; Mortar; pH value; Sodium
• ITRD Terms: 4726: Accelerator (concrete); 7353: Alkali; 7312: Carbonate; 4758: Cement; 7132: Concentration (chem); 7354: Hydroxide; 4769: Mortar; 7116: pH value; 7197: Sodium
• Subject Areas: Materials;

Filing Info

• Accession Number: 00498112
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM