Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions
A theoretical model for cement hydration was proposed to study multi-mineral reactive transport processes under various mineral compositions and determine the effect of multi-mineral reactions and interactions on cement hydration kinetics shifting from silicate to aluminate dominance. The reaction r...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/171602 |
| _version_ | 1826128168813068288 |
|---|---|
| author | Liu, Yang Liu, Muyu Li, Hua Luo, Guitao Tan, Hongbo Liu, Qimin |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Liu, Yang Liu, Muyu Li, Hua Luo, Guitao Tan, Hongbo Liu, Qimin |
| author_sort | Liu, Yang |
| collection | NTU |
| description | A theoretical model for cement hydration was proposed to study multi-mineral reactive transport processes under various mineral compositions and determine the effect of multi-mineral reactions and interactions on cement hydration kinetics shifting from silicate to aluminate dominance. The reaction rates of each mineral dissolution, product precipitation, ionic diffusion, and adsorption were calculated individually through the degrees of undersaturation and supersaturation associated with the ionic concentration, all of which were coupled in the modified Poisson–Nernst–Planck equation. The hydration heat flow was then theoretically calculated by the superposition of the reaction rates of silicate and aluminate phases, which was derived from the calculated ionic concentration. The model was validated by comparison with experimental data obtained under various conditions, showing consistency. The combined effect of multi-mineral reactions and interactions on hydration kinetics was investigated using the model, and the results indicated that (1) faster dissolution of gypsum or a higher ratio of tricalcium aluminate to tricalcium silicate leads to a larger time interval between silicate and aluminate peaks; (2) faster precipitation of calcium silicate hydrate results in a more significant difference between silicate and aluminate peaks; and (3) the sulfate ion retards cement hydration kinetics shifting from silicate to aluminate dominance. |
| first_indexed | 2024-10-01T07:20:31Z |
| format | Journal Article |
| id | ntu-10356/171602 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:20:31Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1716022023-11-04T16:48:22Z Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions Liu, Yang Liu, Muyu Li, Hua Luo, Guitao Tan, Hongbo Liu, Qimin School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Portland Cement Kinetics Shift A theoretical model for cement hydration was proposed to study multi-mineral reactive transport processes under various mineral compositions and determine the effect of multi-mineral reactions and interactions on cement hydration kinetics shifting from silicate to aluminate dominance. The reaction rates of each mineral dissolution, product precipitation, ionic diffusion, and adsorption were calculated individually through the degrees of undersaturation and supersaturation associated with the ionic concentration, all of which were coupled in the modified Poisson–Nernst–Planck equation. The hydration heat flow was then theoretically calculated by the superposition of the reaction rates of silicate and aluminate phases, which was derived from the calculated ionic concentration. The model was validated by comparison with experimental data obtained under various conditions, showing consistency. The combined effect of multi-mineral reactions and interactions on hydration kinetics was investigated using the model, and the results indicated that (1) faster dissolution of gypsum or a higher ratio of tricalcium aluminate to tricalcium silicate leads to a larger time interval between silicate and aluminate peaks; (2) faster precipitation of calcium silicate hydrate results in a more significant difference between silicate and aluminate peaks; and (3) the sulfate ion retards cement hydration kinetics shifting from silicate to aluminate dominance. Published version This work was supported by the Key Research and Development Program of Hubei Province (Grant No. 2020BCB065). 2023-11-01T01:08:59Z 2023-11-01T01:08:59Z 2023 Journal Article Liu, Y., Liu, M., Li, H., Luo, G., Tan, H. & Liu, Q. (2023). Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions. Materials and Design, 233, 112228-. https://dx.doi.org/10.1016/j.matdes.2023.112228 0264-1275 https://hdl.handle.net/10356/171602 10.1016/j.matdes.2023.112228 2-s2.0-85168556198 233 112228 en Materials and Design © 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/). application/pdf |
| spellingShingle | Engineering::Mechanical engineering Portland Cement Kinetics Shift Liu, Yang Liu, Muyu Li, Hua Luo, Guitao Tan, Hongbo Liu, Qimin Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions |
| title | Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions |
| title_full | Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions |
| title_fullStr | Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions |
| title_full_unstemmed | Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions |
| title_short | Hydration kinetics of Portland cement shifting from silicate to aluminate dominance based on multi-mineral reactions and interactions |
| title_sort | hydration kinetics of portland cement shifting from silicate to aluminate dominance based on multi mineral reactions and interactions |
| topic | Engineering::Mechanical engineering Portland Cement Kinetics Shift |
| url | https://hdl.handle.net/10356/171602 |
| work_keys_str_mv | AT liuyang hydrationkineticsofportlandcementshiftingfromsilicatetoaluminatedominancebasedonmultimineralreactionsandinteractions AT liumuyu hydrationkineticsofportlandcementshiftingfromsilicatetoaluminatedominancebasedonmultimineralreactionsandinteractions AT lihua hydrationkineticsofportlandcementshiftingfromsilicatetoaluminatedominancebasedonmultimineralreactionsandinteractions AT luoguitao hydrationkineticsofportlandcementshiftingfromsilicatetoaluminatedominancebasedonmultimineralreactionsandinteractions AT tanhongbo hydrationkineticsofportlandcementshiftingfromsilicatetoaluminatedominancebasedonmultimineralreactionsandinteractions AT liuqimin hydrationkineticsofportlandcementshiftingfromsilicatetoaluminatedominancebasedonmultimineralreactionsandinteractions |