MICROSTRUCTURAL DEVELOPMENT IN A HIGH-STRENGTH CONCRETE CONTAINING A TERNARY CEMENTITIOUS SYSTEM

The cause is investigated and the microstructural characteristics are determined of the sudden upsurge of mechanical strength at 12 h in a silica-fume/fly ash high-strength concrete. The concrete was subject to progressive hydration from 1 to 91 days. It is noted that the early increase in compressive strength in a silica fume/fly ash concrete might be explained by the dissolution of a certain quantity of K2O from the surface of a substantial number of fly-ash particles in very early hydration. In contrast, silica-fume concrete with identical cement, aggregates, and W/C fails to develop such high strength though this trend was reversed from age one day. This and other findings are discussed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3528769
• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Sarkar, S L
  • Baalbaki, M
  • Aitcin, P-C
• Publication Date: 1991

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 81-87
• Serial:
  • Cement, Concrete and Aggregates
  • Volume: 13
  • Issue Number: 2
  • Publisher: American Society for Testing and Materials (ASTM)
  • ISSN: 0149-6123
  • Serial URL: http://journalsip.astm.org/JOURNALS/CEMENT/cca_home.html

Subject/Index Terms

• TRT Terms: Compressive strength; Concrete; Fly ash; High strength concrete; Hydration; Microstructure; Silica fume
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00618039
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 31 1991 12:00AM