CALORIMETRIC STUDY OF CEMENT BLENDS CONTAINING FLY ASH, SILICA FUME, AND SLAG AT ELEVATED TEMPERATURES

Investigators employ isothermal calorimetry to study the hydration behavior of blended cements containing fly ash, silica fume, and granulated blast furnace slag over the temperature range of 10 to 55 deg C. The rates of heat evolution for the first 24 hours of hydration were studied and the results analyzed to determine the kinetics of hydration of portland and blended cements. Relationships between the reactivities of these blended cements and the curing temperature were documented. Results indicate that an increase in temperature always leads to an increase in the rates of hydration reactions. Activation energy values were established for the hydration reactions of blends containing fly ash, silica fume, and slag. These fairly constant values may be related to diffusionally controlled hydration of the mineral admixtures.

• 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:
  • Ma, Weimin
  • Sample, D
  • Martin, R
  • Brown, P W
• Publication Date: 1994-12

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 93-99
• Serial:
  • Cement, Concrete and Aggregates
  • Volume: 16
  • 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: Calorimeters; Cement; Experiments; Fly ash; Granulated slag; Hydration; Silica fume; Temperature; Thermal stresses
• Old TRIS Terms: Arrhenius activation energy
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00675512
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 13 1995 12:00AM