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The interaction of calcium nitrate and a Class C fly ash during hydration

Journal Article · · Cement and Concrete Research
 [1];  [2]
  1. Monex Resources, San Antonio, TX (United States)
  2. Univ. of North Texas, Denton, TX (United States)
Different analytical techniques were used to study the hydration of a Class C fly ash in the presence of various concentrations of calcium nitrate. Calcium nitrate was found to accelerate the hydration of calcium aluminate phases in relationship to dosage. Hydration mechanisms were modified resulting in altered products. The new products consisted of calcium aluminate hydrate and nitrate. Evidence suggested that the modified nitrate-hydrates competed with or inhibited the formation of calcium aluminate sulfates hydrates.
OSTI ID:
367793
Journal Information:
Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 7 Vol. 26; ISSN CCNRAI; ISSN 0008-8846
Country of Publication:
United States
Language:
English

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