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Reactivity of fly ash in cement paste studied by means of thermogravimetry and isothermal calorimetry

Gert Baert (UGent) , Serge Hoste (UGent) , Geert De Schutter (UGent) and Nele De Belie (UGent)
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Abstract
Four paste mixtures with varying replacement level of the cement content by fly ash have been studied. Due to fly ash, the acceleration period decreased and a third hydration peak was noticed with isothermal calorimetry. The total heat after 7 days increased with increasing fly ash content. From 1 to 7 days, thermogravimetry showed a higher chemically bound water and Ca(OH)(2)-content for the pastes with fly ash. Between 7 and 14 days the calcium hydroxide started to be depleted due to the pozzolanic reaction. A unique relation was found between calcium hydroxide and total heat development
Keywords
pozzolanic reaction, cement hydration, fly ash cement paste

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Citation

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Chicago
Baert, Gert, Serge Hoste, Geert De Schutter, and Nele De Belie. 2008. “Reactivity of Fly Ash in Cement Paste Studied by Means of Thermogravimetry and Isothermal Calorimetry.” Journal of Thermal Analysis and Calorimetry 94 (2): 485–492.
APA
Baert, Gert, Hoste, S., De Schutter, G., & De Belie, N. (2008). Reactivity of fly ash in cement paste studied by means of thermogravimetry and isothermal calorimetry. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 94(2), 485–492.
Vancouver
1.
Baert G, Hoste S, De Schutter G, De Belie N. Reactivity of fly ash in cement paste studied by means of thermogravimetry and isothermal calorimetry. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY. DORDRECHT, NETHERLANDS: Springer; 2008;94(2):485–92.
MLA
Baert, Gert, Serge Hoste, Geert De Schutter, et al. “Reactivity of Fly Ash in Cement Paste Studied by Means of Thermogravimetry and Isothermal Calorimetry.” JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 94.2 (2008): 485–492. Print.
@article{596280,
  abstract     = {Four paste mixtures with varying replacement level of the cement content by fly ash have been studied. Due to fly ash, the acceleration period decreased and a third hydration peak was noticed with isothermal calorimetry. The total heat after 7 days increased with increasing fly ash content. From 1 to 7 days, thermogravimetry showed a higher chemically bound water and Ca(OH)(2)-content for the pastes with fly ash. Between 7 and 14 days the calcium hydroxide started to be depleted due to the pozzolanic reaction. A unique relation was found between calcium hydroxide and total heat development},
  author       = {Baert, Gert and Hoste, Serge and De Schutter, Geert and De Belie, Nele},
  issn         = {1388-6150},
  journal      = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY},
  keyword      = {pozzolanic reaction,cement hydration,fly ash cement paste},
  language     = {eng},
  number       = {2},
  pages        = {485--492},
  publisher    = {Springer},
  title        = {Reactivity of fly ash in cement paste studied by means of thermogravimetry and isothermal calorimetry},
  url          = {http://dx.doi.org/10.1007/s10973-007-8787-z},
  volume       = {94},
  year         = {2008},
}

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