EFFECTS OF ADMIXTURES AND ALKALI COMPOUNDS ON ALKALI AGGREGATE REACTION

Tests of mortar bar expansion are reported with bronzite andesite reactive aggregate found in Japan. The effects of chemical admixtures, sodium alkalis and of fly ash and slag on expansion are presented. Chemical admixtures appeared to reduce expansion whereas alkali compounds caused large expansion with sodium salts more aggressive than potassium salts. Fly ash and slag were found effective in controlling expansion. (a)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02625075
• Corporate Authors:

  Longman Group UK Limited

  Longman House, Burnt Mill
  Harlow, Essex,   England 
• Authors:
  • Okada, K
  • Yoshikawa, T
  • Himeno, M
• Publication Date: 1988-11

Language

• English

Media Info

• Pagination: p. 205-8
• Serial:
  • International Journal of Cement Composites and Lightweight Concrete
  • Volume: 10
  • Issue Number: 4
  • Publisher: Longman Group UK Limited
  • ISSN: 0262-5075

Subject/Index Terms

• TRT Terms: Admixtures; Aggregates; Alkali; Bars (Building materials); Cement; Chemical reactions; Concrete; Durability; Expansion; Fly ash; Mortar; Oxides; Silicon; Slag; Volcanic rock
• Geographic Terms: Japan
• Old TRIS Terms: Andesite
• ITRD Terms: 4736: Admixture; 4577: Aggregate; 7353: Alkali; 3461: Bar; 4758: Cement; 4755: Concrete; 5910: Durability; 6720: Expansion; 4122: Felspar; 4580: Fly ash; 8053: Japan; 4769: Mortar; 7372: Oxide; 7156: Reaction (chem); 7148: Silicon; 4561: Slag
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00487066
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1989 12:00AM