Modeling of physico-chemical property and mechanical characteristics of meso-scale mortar deteriorated by Ca leaching

T. Miura, Yasuhiko Sato, H. Nakamura

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

1 Citation (Scopus)

Abstract

The purpose of this study is to grasp the change in mechanical behavior of meso-scale mortar specimens damaged by Ca leaching. Particularly, thin mortar specimens were immersed in demineralized water and NaCl solution for 0, 56, 112 and 168 days. After immersion tests, three points bending tests and double direct shear tests were carried out in order to determine elastic modulus, tensile strength, fracture energy and tensile softening curve from load displacement curves using back analysis and shear strength. In addition, chemical analysis was conducted so as to clarify how amount of calcium hydroxide and C-S-H and in the porosity quantitatively. Consequently, it was found that the change in mechanical behavior was strongly related to the change in the amount of cement hydrate and porosity. Furthermore, mechanical models that can consider the change in porosity were constructed and were evaluated adequacy itself.

Original languageEnglish
Title of host publicationLife-Cycle of Structural Systems
Subtitle of host publicationDesign, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
PublisherCRC Press/Balkema
Pages1678-1685
Number of pages8
ISBN (Print)9781138001206
Publication statusPublished - 2015 Jan 1
Externally publishedYes
Event4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 - Tokyo, Japan
Duration: 2014 Nov 162014 Nov 19

Other

Other4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
CountryJapan
CityTokyo
Period14/11/1614/11/19

Fingerprint

Mortar
Chemical properties
Leaching
Porosity
Hydrated lime
Fracture energy
Bending tests
Hydrates
Shear strength
Cements
Tensile strength
Elastic moduli
Hydrogen
Chemical analysis
Water

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Miura, T., Sato, Y., & Nakamura, H. (2015). Modeling of physico-chemical property and mechanical characteristics of meso-scale mortar deteriorated by Ca leaching. In Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 (pp. 1678-1685). CRC Press/Balkema.

Modeling of physico-chemical property and mechanical characteristics of meso-scale mortar deteriorated by Ca leaching. / Miura, T.; Sato, Yasuhiko; Nakamura, H.

Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014. CRC Press/Balkema, 2015. p. 1678-1685.

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

Miura, T, Sato, Y & Nakamura, H 2015, Modeling of physico-chemical property and mechanical characteristics of meso-scale mortar deteriorated by Ca leaching. in Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014. CRC Press/Balkema, pp. 1678-1685, 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014, Tokyo, Japan, 14/11/16.
Miura T, Sato Y, Nakamura H. Modeling of physico-chemical property and mechanical characteristics of meso-scale mortar deteriorated by Ca leaching. In Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014. CRC Press/Balkema. 2015. p. 1678-1685
Miura, T. ; Sato, Yasuhiko ; Nakamura, H. / Modeling of physico-chemical property and mechanical characteristics of meso-scale mortar deteriorated by Ca leaching. Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014. CRC Press/Balkema, 2015. pp. 1678-1685
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