Modeling of diffusive mass transport in micropores in cement based materials: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Modeling of diffusive mass transport in micropores in cement based materials

Yamaguchi, Tetsuji / Negishi, Kumi / Hoshino, Seiichi / Tanaka, Tadao

AbstractIn order to predict long-term leaching behavior of cement constituents for safety assessments of radioactive waste disposal, we modeled diffusive mass transport in micropores in cement based materials. Based on available knowledge on the pore structure, we developed a transport porosity model that enables us to estimate effective porosity available for diffusion (transport porosity) in cement based materials. We microscopically examined the pore structure of hardened cement pastes to partially verify the model. Effective diffusivities of tritiated water in hardened cement pastes were also obtained experimentally, and were shown to be proportional to the estimated transport porosity.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Modeling of diffusive mass transport in micropores in cement based materials

Yamaguchi, Tetsuji / Negishi, Kumi / Hoshino, Seiichi / Tanaka, Tadao

AbstractIn order to predict long-term leaching behavior of cement constituents for safety assessments of radioactive waste disposal, we modeled diffusive mass transport in micropores in cement based materials. Based on available knowledge on the pore structure, we developed a transport porosity model that enables us to estimate effective porosity available for diffusion (transport porosity) in cement based materials. We microscopically examined the pore structure of hardened cement pastes to partially verify the model. Effective diffusivities of tritiated water in hardened cement pastes were also obtained experimentally, and were shown to be proportional to the estimated transport porosity.

Modeling of diffusive mass transport in micropores in cement based materials

Yamaguchi, Tetsuji / Negishi, Kumi / Hoshino, Seiichi / Tanaka, Tadao

AbstractIn order to predict long-term leaching behavior of cement constituents for safety assessments of radioactive waste disposal, we modeled diffusive mass transport in micropores in cement based materials. Based on available knowledge on the pore structure, we developed a transport porosity model that enables us to estimate effective porosity available for diffusion (transport porosity) in cement based materials. We microscopically examined the pore structure of hardened cement pastes to partially verify the model. Effective diffusivities of tritiated water in hardened cement pastes were also obtained experimentally, and were shown to be proportional to the estimated transport porosity.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Modeling of diffusive mass transport in micropores in cement based materials

Contributors:

Yamaguchi, Tetsuji (author) / Negishi, Kumi (author) / Hoshino, Seiichi (author) / Tanaka, Tadao (author)

Published in:

Cement and Concrete Research ; 39 ; 1149-1155

Publication date:

2009-08-19

Size:

7 pages

ISSN:

DOI:

https://doi.org/10.1016/j.cemconres.2009.08.012

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Microstructure (B) , Diffusion (C) , Long-term performance (C) , Modeling (E) , Waste management (E)

Similar titles

Modeling of diffusive mass transport in micropores in cement based materials

Yamaguchi, T. / Negishi, K. / Hoshino, S. et al. | British Library Online Contents | 2009

Modeling of diffusive mass transport in micropores in cement based materials

Yamaguchi, Tetsuji | Online Contents | 2009

Modeling of diffusive mass transport in micropores in cement based materials

Yamaguchi, Tetsuji | Online Contents | 2009

Moisture transport in materials with micropores

Winter, K. / Krus, M. / Kuenzel, H. M. | British Library Online Contents | 1997

Microstructural changes and mass transport in cement-based materials: A modeling approach

Michel, A. / Marcos-Meson, V. / Kunther, W. et al. | Elsevier | 2020