Evaluation of permeability of concrete specimens affected by chloride attack using reconstruction and probabilistic description methods

Sang Yeop Chung, Se Yun Kim, Yong Woo Kim, Tong Seok Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The spatial distribution of constituents in concrete affects the material performance, and voids present in cast concrete significantly affect permeability and durability because most of the air and water are passed through voids inside the material. Therefore, a proper investigation of the void distribution inside concrete is important to evaluate and understand material characteristics. To visualize and investigate the spatial distribution of voids in a concrete specimen, X-ray CT images and probabilistic description methods including reconstruction were used in this study. Additionally, a virtual concrete specimen was reconstructed using the probabilistic information of real specimens, and the permeability of each specimen was evaluated using finite element simulation, and compared with experimental data. From the results, we confirm that the proposed reconstruction method can effectively generate a virtual cement paste specimen with a specific void distribution.

Original languageEnglish
Title of host publicationIABSE Conference, Nara 2015
Subtitle of host publicationElegance in Structures - Report
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Pages274-275
Number of pages2
ISBN (Electronic)9783857481383
Publication statusPublished - 2015 Jan 1
EventIABSE Conference, Nara 2015: Elegance in Structures - Nara, Japan
Duration: 2015 May 132015 May 15

Other

OtherIABSE Conference, Nara 2015: Elegance in Structures
CountryJapan
CityNara
Period15/5/1315/5/15

Fingerprint

Concretes
Spatial distribution
Cements
Durability
X rays
Air
Water

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction

Cite this

Chung, S. Y., Kim, S. Y., Kim, Y. W., & Han, T. S. (2015). Evaluation of permeability of concrete specimens affected by chloride attack using reconstruction and probabilistic description methods. In IABSE Conference, Nara 2015: Elegance in Structures - Report (pp. 274-275). International Association for Bridge and Structural Engineering (IABSE).
Chung, Sang Yeop ; Kim, Se Yun ; Kim, Yong Woo ; Han, Tong Seok. / Evaluation of permeability of concrete specimens affected by chloride attack using reconstruction and probabilistic description methods. IABSE Conference, Nara 2015: Elegance in Structures - Report. International Association for Bridge and Structural Engineering (IABSE), 2015. pp. 274-275
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Chung, SY, Kim, SY, Kim, YW & Han, TS 2015, Evaluation of permeability of concrete specimens affected by chloride attack using reconstruction and probabilistic description methods. in IABSE Conference, Nara 2015: Elegance in Structures - Report. International Association for Bridge and Structural Engineering (IABSE), pp. 274-275, IABSE Conference, Nara 2015: Elegance in Structures, Nara, Japan, 15/5/13.

Evaluation of permeability of concrete specimens affected by chloride attack using reconstruction and probabilistic description methods. / Chung, Sang Yeop; Kim, Se Yun; Kim, Yong Woo; Han, Tong Seok.

IABSE Conference, Nara 2015: Elegance in Structures - Report. International Association for Bridge and Structural Engineering (IABSE), 2015. p. 274-275.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - The spatial distribution of constituents in concrete affects the material performance, and voids present in cast concrete significantly affect permeability and durability because most of the air and water are passed through voids inside the material. Therefore, a proper investigation of the void distribution inside concrete is important to evaluate and understand material characteristics. To visualize and investigate the spatial distribution of voids in a concrete specimen, X-ray CT images and probabilistic description methods including reconstruction were used in this study. Additionally, a virtual concrete specimen was reconstructed using the probabilistic information of real specimens, and the permeability of each specimen was evaluated using finite element simulation, and compared with experimental data. From the results, we confirm that the proposed reconstruction method can effectively generate a virtual cement paste specimen with a specific void distribution.

AB - The spatial distribution of constituents in concrete affects the material performance, and voids present in cast concrete significantly affect permeability and durability because most of the air and water are passed through voids inside the material. Therefore, a proper investigation of the void distribution inside concrete is important to evaluate and understand material characteristics. To visualize and investigate the spatial distribution of voids in a concrete specimen, X-ray CT images and probabilistic description methods including reconstruction were used in this study. Additionally, a virtual concrete specimen was reconstructed using the probabilistic information of real specimens, and the permeability of each specimen was evaluated using finite element simulation, and compared with experimental data. From the results, we confirm that the proposed reconstruction method can effectively generate a virtual cement paste specimen with a specific void distribution.

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Chung SY, Kim SY, Kim YW, Han TS. Evaluation of permeability of concrete specimens affected by chloride attack using reconstruction and probabilistic description methods. In IABSE Conference, Nara 2015: Elegance in Structures - Report. International Association for Bridge and Structural Engineering (IABSE). 2015. p. 274-275