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A multi-compound model for the hydration of Portland Cement: fly ash binders

Gert Baert (UGent) , Nele De Belie (UGent) and Geert De Schutter (UGent)
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Abstract
In this study traditional reaction equations (based on the theory of Powers) are applied on the hydration reactions of Portland cement and the pozzolanic reaction of fly ash separately. Moreover, Portland clinker is considered as a mixture of four minerals each with their own sensitivity to the presence of fly ash. The kinetics of the reactions of each clinker mineral have been analysed by fitting generally known models such as the Avrami and Jander equations to isothermal heat measurements on pastes of cement, fly ash and water. The proposed model therefore consists of different stages, in which nucleation, phase-boundary and diffusion reactions, become rate-controlling. The kinetics of the pozzolanic reactions have been described with similar equations, implementing parameter values based on measured selective dissoluation data. Fly ash may accelerate the reaction of a clinker mineral, while at the same time it can decelerate another mineral

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Chicago
Baert, Gert, Nele De Belie, and Geert De Schutter. 2010. “A Multi-compound Model for the Hydration of Portland Cement: Fly Ash Binders.” In Second International Conference on Sustainable Construction Materials and Technologies, Proceedings, ed. Tarun R Naik, Fethullah Canpolat, Peter Claisse, and Eshamiel Ganjian, 203–213. Milwaukee, WI, USA: UWM Center for By-Products Utilization.
APA
Baert, Gert, De Belie, N., & De Schutter, G. (2010). A multi-compound model for the hydration of Portland Cement: fly ash binders. In T. R. Naik, F. Canpolat, P. Claisse, & E. Ganjian (Eds.), Second international conference on sustainable construction materials and technologies, Proceedings (pp. 203–213). Presented at the Second International Conference on Sustainable Construction Materials and Technologies, Milwaukee, WI, USA: UWM Center for By-Products Utilization.
Vancouver
1.
Baert G, De Belie N, De Schutter G. A multi-compound model for the hydration of Portland Cement: fly ash binders. In: Naik TR, Canpolat F, Claisse P, Ganjian E, editors. Second international conference on sustainable construction materials and technologies, Proceedings. Milwaukee, WI, USA: UWM Center for By-Products Utilization; 2010. p. 203–13.
MLA
Baert, Gert, Nele De Belie, and Geert De Schutter. “A Multi-compound Model for the Hydration of Portland Cement: Fly Ash Binders.” Second International Conference on Sustainable Construction Materials and Technologies, Proceedings. Ed. Tarun R Naik et al. Milwaukee, WI, USA: UWM Center for By-Products Utilization, 2010. 203–213. Print.
@inproceedings{1579112,
  abstract     = {In this study traditional reaction equations (based on the theory of Powers) are applied on the hydration reactions of Portland cement and the pozzolanic reaction of fly ash separately. Moreover, Portland clinker is considered as a mixture of four minerals each with their own sensitivity to the presence of fly ash. The kinetics of the reactions of each clinker mineral have been analysed by fitting generally known models such as the Avrami and Jander equations to isothermal heat measurements on pastes of cement, fly ash and water. The proposed model therefore consists of different stages, in which nucleation, phase-boundary and diffusion reactions, become rate-controlling. The kinetics of the pozzolanic reactions have been described with similar equations, implementing parameter values based on measured selective dissoluation data. Fly ash may accelerate the reaction of a clinker mineral, while at the same time it can decelerate another mineral},
  author       = {Baert, Gert and De Belie, Nele and De Schutter, Geert},
  booktitle    = {Second international conference on sustainable construction materials and technologies, Proceedings},
  editor       = {Naik, Tarun R and Canpolat, Fethullah and Claisse, Peter and Ganjian, Eshamiel},
  isbn         = {9781450714877},
  language     = {eng},
  location     = {Ancona, Italy},
  pages        = {203--213},
  publisher    = {UWM Center for By-Products Utilization},
  title        = {A multi-compound model for the hydration of Portland Cement: fly ash binders},
  year         = {2010},
}