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A speciation solver for cement paste modeling and the semismooth Newton method
Abstract The mineral assemblage of a cement paste may vary considerably with its environment. In addition, the water content of a cement paste is relatively low and the ionic strength of the interstitial solution is often high. These conditions are extreme conditions with respect to the common assumptions made in speciation problem. Furthermore the common trial and error algorithm to find the phase assemblage does not provide any guarantee of convergence. We propose a speciation solver based on a semismooth Newton method adapted to the thermodynamic modeling of cement paste. The strong theoretical properties associated with these methods offer practical advantages. Results of numerical experiments indicate that the algorithm is reliable, robust, and efficient.
A speciation solver for cement paste modeling and the semismooth Newton method
Abstract The mineral assemblage of a cement paste may vary considerably with its environment. In addition, the water content of a cement paste is relatively low and the ionic strength of the interstitial solution is often high. These conditions are extreme conditions with respect to the common assumptions made in speciation problem. Furthermore the common trial and error algorithm to find the phase assemblage does not provide any guarantee of convergence. We propose a speciation solver based on a semismooth Newton method adapted to the thermodynamic modeling of cement paste. The strong theoretical properties associated with these methods offer practical advantages. Results of numerical experiments indicate that the algorithm is reliable, robust, and efficient.
A speciation solver for cement paste modeling and the semismooth Newton method
Georget, Fabien (Autor:in) / Prévost, Jean H. (Autor:in) / Vanderbei, Robert J. (Autor:in)
Cement and Concrete Research ; 68 ; 139-147
06.11.2014
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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