Simulating cement microstructural evolution during calcium leaching

Ravi A. Patel; Janez Perko; Diederik Jacques; Geert De Schutter; Klaas Van Breugel; Guang Ye

Simulating cement microstructural evolution during calcium leaching

Ravi A. Patel, Janez Perko, Diederik Jacques, Geert De Schutter, Klaas Van Breugel, Guang Ye

Research output › peer-review

Abstract

Calcium leaching is one of the important degradation mechanisms causing dissolution of the crystalline phases such as, AFm, portlandite increasing capillary porosity. Further it leads to decalcification of an amorphous C-S-H phase causing increase in the gel porosity and in turn degrading the long term performance of concrete structures. In this paper a lattice Boltzmann based pore-scale reactive transport approach in the context of simulating the evolution of microstructure of a hardened cement paste during calcium leaching is presented. This approach is based on fundamental principles of chemical thermodynamics and mass transport. The example presented illustrates influence of location of mineral grains and surface area on overall dissolution rate and pore structure evolution.

Original language	English
Title of host publication	Proceedings of the 10th fib International PhD Symposium in Civil Engineering
Editors	Nicolas Rouleau, Josee Bastien, Mathieu Fiset, Mathieu Thomassin
Publisher	Universite Laval
Pages	173-178
Number of pages	6
ISBN (Electronic)	9782980676215
State	Published - 2014
Event	10th International Federation for Structural Concrete (fib) International PhD Symposium in Civil Engineering 2014 - Quebec City Duration: 21 Jul 2014 → 23 Jul 2014

Publication series

Name	Proceedings of the 10th fib International PhD Symposium in Civil Engineering

Conference

Conference	10th International Federation for Structural Concrete (fib) International PhD Symposium in Civil Engineering 2014
Country/Territory	Canada
City	Quebec City
Period	2014-07-21 → 2014-07-23

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Architecture

Cite this

Patel, R. A., Perko, J., Jacques, D., De Schutter, G., Van Breugel, K., & Ye, G. (2014). Simulating cement microstructural evolution during calcium leaching. In N. Rouleau, J. Bastien, M. Fiset, & M. Thomassin (Eds.), Proceedings of the 10th fib International PhD Symposium in Civil Engineering (pp. 173-178). (Proceedings of the 10th fib International PhD Symposium in Civil Engineering). Universite Laval.

Patel, Ravi A. ; Perko, Janez ; Jacques, Diederik et al. / Simulating cement microstructural evolution during calcium leaching. Proceedings of the 10th fib International PhD Symposium in Civil Engineering. editor / Nicolas Rouleau ; Josee Bastien ; Mathieu Fiset ; Mathieu Thomassin. Universite Laval, 2014. pp. 173-178 (Proceedings of the 10th fib International PhD Symposium in Civil Engineering).

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title = "Simulating cement microstructural evolution during calcium leaching",

abstract = "Calcium leaching is one of the important degradation mechanisms causing dissolution of the crystalline phases such as, AFm, portlandite increasing capillary porosity. Further it leads to decalcification of an amorphous C-S-H phase causing increase in the gel porosity and in turn degrading the long term performance of concrete structures. In this paper a lattice Boltzmann based pore-scale reactive transport approach in the context of simulating the evolution of microstructure of a hardened cement paste during calcium leaching is presented. This approach is based on fundamental principles of chemical thermodynamics and mass transport. The example presented illustrates influence of location of mineral grains and surface area on overall dissolution rate and pore structure evolution.",

keywords = "Cement degradation, Calcium leaching",

author = "Patel, {Ravi A.} and Janez Perko and Diederik Jacques and {De Schutter}, Geert and {Van Breugel}, Klaas and Guang Ye",

year = "2014",

language = "English",

series = "Proceedings of the 10th fib International PhD Symposium in Civil Engineering",

publisher = "Universite Laval",

pages = "173--178",

editor = "Nicolas Rouleau and Josee Bastien and Mathieu Fiset and Mathieu Thomassin",

booktitle = "Proceedings of the 10th fib International PhD Symposium in Civil Engineering",

note = "10th International Federation for Structural Concrete (fib) International PhD Symposium in Civil Engineering 2014 ; Conference date: 21-07-2014 Through 23-07-2014",

}

Patel, RA , Perko, J , Jacques, D, De Schutter, G, Van Breugel, K & Ye, G 2014, Simulating cement microstructural evolution during calcium leaching. in N Rouleau, J Bastien, M Fiset & M Thomassin (eds), Proceedings of the 10th fib International PhD Symposium in Civil Engineering. Proceedings of the 10th fib International PhD Symposium in Civil Engineering, Universite Laval, pp. 173-178, 10th International Federation for Structural Concrete (fib) International PhD Symposium in Civil Engineering 2014, Quebec City, Canada, 2014-07-21.

Simulating cement microstructural evolution during calcium leaching. / Patel, Ravi A.; Perko, Janez ; Jacques, Diederik et al.
Proceedings of the 10th fib International PhD Symposium in Civil Engineering. ed. / Nicolas Rouleau; Josee Bastien; Mathieu Fiset; Mathieu Thomassin. Universite Laval, 2014. p. 173-178 (Proceedings of the 10th fib International PhD Symposium in Civil Engineering).

Research output › peer-review

TY - GEN

T1 - Simulating cement microstructural evolution during calcium leaching

AU - Patel, Ravi A.

AU - Perko, Janez

AU - Jacques, Diederik

AU - De Schutter, Geert

AU - Van Breugel, Klaas

AU - Ye, Guang

PY - 2014

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N2 - Calcium leaching is one of the important degradation mechanisms causing dissolution of the crystalline phases such as, AFm, portlandite increasing capillary porosity. Further it leads to decalcification of an amorphous C-S-H phase causing increase in the gel porosity and in turn degrading the long term performance of concrete structures. In this paper a lattice Boltzmann based pore-scale reactive transport approach in the context of simulating the evolution of microstructure of a hardened cement paste during calcium leaching is presented. This approach is based on fundamental principles of chemical thermodynamics and mass transport. The example presented illustrates influence of location of mineral grains and surface area on overall dissolution rate and pore structure evolution.

AB - Calcium leaching is one of the important degradation mechanisms causing dissolution of the crystalline phases such as, AFm, portlandite increasing capillary porosity. Further it leads to decalcification of an amorphous C-S-H phase causing increase in the gel porosity and in turn degrading the long term performance of concrete structures. In this paper a lattice Boltzmann based pore-scale reactive transport approach in the context of simulating the evolution of microstructure of a hardened cement paste during calcium leaching is presented. This approach is based on fundamental principles of chemical thermodynamics and mass transport. The example presented illustrates influence of location of mineral grains and surface area on overall dissolution rate and pore structure evolution.

KW - Cement degradation

KW - Calcium leaching

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M3 - In-proceedings paper

AN - SCOPUS:85015452611

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BT - Proceedings of the 10th fib International PhD Symposium in Civil Engineering

A2 - Rouleau, Nicolas

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PB - Universite Laval

T2 - 10th International Federation for Structural Concrete (fib) International PhD Symposium in Civil Engineering 2014

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Patel RA , Perko J , Jacques D, De Schutter G, Van Breugel K, Ye G. Simulating cement microstructural evolution during calcium leaching. In Rouleau N, Bastien J, Fiset M, Thomassin M, editors, Proceedings of the 10th fib International PhD Symposium in Civil Engineering. Universite Laval. 2014. p. 173-178. (Proceedings of the 10th fib International PhD Symposium in Civil Engineering).