Chemo-mechanical model for the expansion of concrete due to alkali silica reaction

Lianfang Sun; Xingji Zhu; Xiaoying Zhuang; Goangseup Zi

doi:10.3390/app10113807

Chemo-mechanical model for the expansion of concrete due to alkali silica reaction

Lianfang Sun, Xingji Zhu, Xiaoying Zhuang, Goangseup Zi

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A chemo-damage model is proposed to predict the expansion caused by the alkali silica reaction (ASR). The model covers the formation of the pre-expansion gel driven by alkali and the swelling of the gel driven by water. The swelling capacity of the ASR gel is quantified by the sodium to calcium ratio in the pore solution. The bound alkali in the gel recycled by calcium is also considered in this model. Both external alkali supply and internal alkali released from aggregates are included. Several sets of experimental data are compared with the simulation results for the verification of the model.

Original language	English
Article number	3807
Journal	Applied Sciences (Switzerland)
Volume	10
Issue number	11
DOIs	https://doi.org/10.3390/app10113807
Publication status	Published - 2020 Jun 1

Bibliographical note

Funding Information:
Funding: This research was supported by a grant (20CTAP-C152291-02) from Technology Advancement Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government. The first author would like to acknowledge the support of the China Scholarship Council (CSC201606450022).

Publisher Copyright:
© 2020 by the authors.

Keywords

Alkali silica reaction
Concrete
Durability
Numerical modeling

ASJC Scopus subject areas

General Materials Science
Instrumentation
General Engineering
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes

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10.3390/app10113807

Cite this

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abstract = "A chemo-damage model is proposed to predict the expansion caused by the alkali silica reaction (ASR). The model covers the formation of the pre-expansion gel driven by alkali and the swelling of the gel driven by water. The swelling capacity of the ASR gel is quantified by the sodium to calcium ratio in the pore solution. The bound alkali in the gel recycled by calcium is also considered in this model. Both external alkali supply and internal alkali released from aggregates are included. Several sets of experimental data are compared with the simulation results for the verification of the model.",

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AU - Sun, Lianfang

AU - Zhu, Xingji

AU - Zhuang, Xiaoying

AU - Zi, Goangseup

N1 - Funding Information: Funding: This research was supported by a grant (20CTAP-C152291-02) from Technology Advancement Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government. The first author would like to acknowledge the support of the China Scholarship Council (CSC201606450022). Publisher Copyright: © 2020 by the authors.

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N2 - A chemo-damage model is proposed to predict the expansion caused by the alkali silica reaction (ASR). The model covers the formation of the pre-expansion gel driven by alkali and the swelling of the gel driven by water. The swelling capacity of the ASR gel is quantified by the sodium to calcium ratio in the pore solution. The bound alkali in the gel recycled by calcium is also considered in this model. Both external alkali supply and internal alkali released from aggregates are included. Several sets of experimental data are compared with the simulation results for the verification of the model.

AB - A chemo-damage model is proposed to predict the expansion caused by the alkali silica reaction (ASR). The model covers the formation of the pre-expansion gel driven by alkali and the swelling of the gel driven by water. The swelling capacity of the ASR gel is quantified by the sodium to calcium ratio in the pore solution. The bound alkali in the gel recycled by calcium is also considered in this model. Both external alkali supply and internal alkali released from aggregates are included. Several sets of experimental data are compared with the simulation results for the verification of the model.

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KW - Durability

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Chemo-mechanical model for the expansion of concrete due to alkali silica reaction

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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