Chloride transport modeling for normal and fly-ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effect
This study indicates two issues of available time-dependent diffusion coefficient function; non-smoothness of diffusion coefficient decay, and inconsistency of stable time of diffusion coefficient. A naturally logarithmic apparent diffusion coefficient function is thus developed for closed-form solu...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sustainable Development Press Limited
2025-06-01
|
| Series: | Sustainable Structures |
| Subjects: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849313632155860992 |
|---|---|
| author | Aruz Petcherdchoo Rafat Siddique Tanakorn Phoo-ngernkham |
| author_facet | Aruz Petcherdchoo Rafat Siddique Tanakorn Phoo-ngernkham |
| author_sort | Aruz Petcherdchoo |
| collection | DOAJ |
| description | This study indicates two issues of available time-dependent diffusion coefficient function; non-smoothness of diffusion coefficient decay, and inconsistency of stable time of diffusion coefficient. A naturally logarithmic apparent diffusion coefficient function is thus developed for closed-form solutions of chloride transport model. The developed model is validated with experimental data, and its generality is ensured by comparing with the finite difference approach. From the study, the stable time of the developed diffusion coefficient appears 2.87-3.21 years after exposure, and the stable time of surface chloride appears 5 years after exposure. Such early appearance of these stable times behaves different from other studies, causing different long-term chloride prediction and concrete service life. Using the developed model, the influence of cover depth and percent fly-ash is determined in service life prediction. Additionally, this study develops a model to predict environmental impact in terms of eutrophication potential, currently considered as an emerging global issue. The developed eutrophication potential model shows that the increase of fly-ash replacement of 0% to 50% reduces such eutrophication potential due to concrete production by as much as 38%. Moreover, the relationships between the service life and the eutrophication potential for normal and fly-ash concrete tend to be linear. |
| format | Article |
| id | doaj-art-3640460ddea94045b1068dbb6acdfb2f |
| institution | Kabale University |
| issn | 2789-3111 2789-312X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Sustainable Development Press Limited |
| record_format | Article |
| series | Sustainable Structures |
| spelling | doaj-art-3640460ddea94045b1068dbb6acdfb2f2025-08-20T03:52:42ZengSustainable Development Press LimitedSustainable Structures2789-31112789-312X2025-06-015210.54113/j.sust.2025.000072Chloride transport modeling for normal and fly-ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effectAruz Petcherdchoo0Rafat Siddique1Tanakorn Phoo-ngernkham2Department of Civil Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok Bangkok, 10800, ThailandDepartment of Civil Engineering, Thapar Institute of Engineering and Technology, Patiala, 147004, IndiaSustainable Construction Material Technology Research Unit, Department of Civil Engineering, Faculty of Engineering and Technology, Rajamangala University of Technology Isan, Nakhon Ratchasima, 30000, ThailandThis study indicates two issues of available time-dependent diffusion coefficient function; non-smoothness of diffusion coefficient decay, and inconsistency of stable time of diffusion coefficient. A naturally logarithmic apparent diffusion coefficient function is thus developed for closed-form solutions of chloride transport model. The developed model is validated with experimental data, and its generality is ensured by comparing with the finite difference approach. From the study, the stable time of the developed diffusion coefficient appears 2.87-3.21 years after exposure, and the stable time of surface chloride appears 5 years after exposure. Such early appearance of these stable times behaves different from other studies, causing different long-term chloride prediction and concrete service life. Using the developed model, the influence of cover depth and percent fly-ash is determined in service life prediction. Additionally, this study develops a model to predict environmental impact in terms of eutrophication potential, currently considered as an emerging global issue. The developed eutrophication potential model shows that the increase of fly-ash replacement of 0% to 50% reduces such eutrophication potential due to concrete production by as much as 38%. Moreover, the relationships between the service life and the eutrophication potential for normal and fly-ash concrete tend to be linear.naturally logarithmic apparent diffusion coefficientstable timeservice lifefly-ash concreteeutrophication potential |
| spellingShingle | Aruz Petcherdchoo Rafat Siddique Tanakorn Phoo-ngernkham Chloride transport modeling for normal and fly-ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effect Sustainable Structures naturally logarithmic apparent diffusion coefficient stable time service life fly-ash concrete eutrophication potential |
| title | Chloride transport modeling for normal and fly-ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effect |
| title_full | Chloride transport modeling for normal and fly-ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effect |
| title_fullStr | Chloride transport modeling for normal and fly-ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effect |
| title_full_unstemmed | Chloride transport modeling for normal and fly-ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effect |
| title_short | Chloride transport modeling for normal and fly-ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effect |
| title_sort | chloride transport modeling for normal and fly ash concrete using naturally logarithmic apparent diffusion coefficient with considering eutrophication potential effect |
| topic | naturally logarithmic apparent diffusion coefficient stable time service life fly-ash concrete eutrophication potential |
| work_keys_str_mv | AT aruzpetcherdchoo chloridetransportmodelingfornormalandflyashconcreteusingnaturallylogarithmicapparentdiffusioncoefficientwithconsideringeutrophicationpotentialeffect AT rafatsiddique chloridetransportmodelingfornormalandflyashconcreteusingnaturallylogarithmicapparentdiffusioncoefficientwithconsideringeutrophicationpotentialeffect AT tanakornphoongernkham chloridetransportmodelingfornormalandflyashconcreteusingnaturallylogarithmicapparentdiffusioncoefficientwithconsideringeutrophicationpotentialeffect |