The initial stages of cement hydration at the molecular level

Abstract Cement hydration is crucial for the strength development of cement-based materials; however, the mechanism that underlies this complex reaction remains poorly understood at the molecular level. An in-depth understanding of cement hydration is required for the development of environmentally...

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Үндсэн зохиолчид: Xinhang Xu, Chongchong Qi, Xabier M. Aretxabaleta, Chundi Ma, Dino Spagnoli, Hegoi Manzano
Формат: Өгүүллэг
Хэл сонгох:English
Хэвлэсэн: Nature Portfolio 2024-03-01
Цуврал:Nature Communications
Онлайн хандалт:https://doi.org/10.1038/s41467-024-46962-w
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author Xinhang Xu
Chongchong Qi
Xabier M. Aretxabaleta
Chundi Ma
Dino Spagnoli
Hegoi Manzano
author_facet Xinhang Xu
Chongchong Qi
Xabier M. Aretxabaleta
Chundi Ma
Dino Spagnoli
Hegoi Manzano
author_sort Xinhang Xu
collection DOAJ
description Abstract Cement hydration is crucial for the strength development of cement-based materials; however, the mechanism that underlies this complex reaction remains poorly understood at the molecular level. An in-depth understanding of cement hydration is required for the development of environmentally friendly cement and consequently the reduction of carbon emissions in the cement industry. Here, we use molecular dynamics simulations with a reactive force field to investigate the initial hydration processes of tricalcium silicate (C3S) and dicalcium silicate (C2S) up to 40 ns. Our simulations provide theoretical support for the rapid initial hydration of C3S compared to C2S at the molecular level. The dissolution pathways of calcium ions in C3S and C2S are revealed, showing that, two dissolution processes are required for the complete dissolution of calcium ions in C3S. Our findings promote the understanding of the calcium dissolution stage and serve as a valuable reference for the investigation of the initial cement hydration.
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spelling doaj.art-7ebc17fe10df447b9d58b394aa901b9d2024-03-31T11:24:51ZengNature PortfolioNature Communications2041-17232024-03-0115111010.1038/s41467-024-46962-wThe initial stages of cement hydration at the molecular levelXinhang Xu0Chongchong Qi1Xabier M. Aretxabaleta2Chundi Ma3Dino Spagnoli4Hegoi Manzano5School of Resources and Safety Engineering, Central South UniversitySchool of Resources and Safety Engineering, Central South UniversityDepartment of Physics, Faculty of Science and Technology, University of the Basque Country UPV/EHU, Barrio Sarriena s/nSchool of Resources and Safety Engineering, Central South UniversitySchool of Molecular Sciences, University of Western AustraliaDepartment of Physics, Faculty of Science and Technology, University of the Basque Country UPV/EHU, Barrio Sarriena s/nAbstract Cement hydration is crucial for the strength development of cement-based materials; however, the mechanism that underlies this complex reaction remains poorly understood at the molecular level. An in-depth understanding of cement hydration is required for the development of environmentally friendly cement and consequently the reduction of carbon emissions in the cement industry. Here, we use molecular dynamics simulations with a reactive force field to investigate the initial hydration processes of tricalcium silicate (C3S) and dicalcium silicate (C2S) up to 40 ns. Our simulations provide theoretical support for the rapid initial hydration of C3S compared to C2S at the molecular level. The dissolution pathways of calcium ions in C3S and C2S are revealed, showing that, two dissolution processes are required for the complete dissolution of calcium ions in C3S. Our findings promote the understanding of the calcium dissolution stage and serve as a valuable reference for the investigation of the initial cement hydration.https://doi.org/10.1038/s41467-024-46962-w
spellingShingle Xinhang Xu
Chongchong Qi
Xabier M. Aretxabaleta
Chundi Ma
Dino Spagnoli
Hegoi Manzano
The initial stages of cement hydration at the molecular level
Nature Communications
title The initial stages of cement hydration at the molecular level
title_full The initial stages of cement hydration at the molecular level
title_fullStr The initial stages of cement hydration at the molecular level
title_full_unstemmed The initial stages of cement hydration at the molecular level
title_short The initial stages of cement hydration at the molecular level
title_sort initial stages of cement hydration at the molecular level
url https://doi.org/10.1038/s41467-024-46962-w
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