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Can I read Reaction molecular dynamics study of calcium alumino-silicate hydrate gel in the hydration deposition process at the calcium silicate hydrate interface: The influence of Al/Si on EtoBox?

Reaction molecular dynamics study of calcium alumino-silicate hydrate gel in the hydration deposition process at the calcium silicate hydrate interface: The influence of Al/Si by Heping Zheng; Yuying Duan; Mengmeng Li; Dongshuai Hou; Pan Wang; Jizhou Chen; Shaochun Li is a Engineering article available to read on EtoBox.

What is Reaction molecular dynamics study of calcium alumino-silicate hydrate gel in the hydration deposition process at the calcium silicate hydrate interface: The influence of Al/Si about?

Supplementary cementitious materials (SCMs) can partially replace cement in concrete production, forming calcium alumino-silicate hydrate (C-A-S-H). This enhances concrete durability while recycling waste. However, the early hydration reaction process of C-A-S-H and its deposition and aggregation behavior at the interface with the primary hydration product of cement, calcium silicate hydrate (C-S-H), remain unknown. Therefore, this study utilizes reactive molecular dynamics to model the deposition and growth behaviors of C-A-S-H precursors with different Al/Si ratios on C-S-H, and discusses the effects of the Al/Si ratio on C-A-S-H gel aggregation behavior and structural evolution at the C-S-H interface. The results show that increasing Al content significantly promotes the early hydration reaction rate of C-A-S-H gel, the degree of polymerization of silicate chains, and the amount of Q n (n ≥ 2) species. Moreover, higher Al content leads to the precursors aggregating among themselves rather than depositing on the C-S-H substrate surface. The incorporation of Al-O polyhedra can effectively bridge silicate chains on the C-S-H surface and alter the growth patterns of hydration produc

Who reads Reaction molecular dynamics study of calcium alumino-silicate hydrate gel in the hydration deposition process at the calcium silicate hydrate interface: The influence of Al/Si?

It is typically read by researchers, students, and practitioners in Engineering.

Author
Heping Zheng; Yuying Duan; Mengmeng Li; Dongshuai Hou; Pan Wang; Jizhou Chen; Shaochun Li
Publisher
Elsevier BV
Published
2024
Language
EN
Field
Engineering (Physical Sciences)

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