Hydrated Calcium Silicate Erosion in Sulfate Environments a Molecular Dynamics Simulation Study
Mengjie You, Xiaosan Yin, Yuzhou Sun, Hairong Wu, Jimin Li, Xiangming Zhou, Neven Ukrainczyk, Lizhi Sun · 2024
Read Hydrated Calcium Silicate Erosion in Sulfate Environments a Molecular Dynamics Simulation Study by Mengjie You, Xiaosan Yin, Yuzhou Sun, Hairong Wu, Jimin Li, Xiangming Zhou, Neven Ukrainczyk, Lizhi Sun (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11643564.txt.
Description
Mengjie You and seven co-authors present a study from twenty twenty-four on how sulfate attacks the gel that binds concrete. The gel, a hydrated calcium silicate, gives concrete its strength. Sulfate in soil and water eats it from the inside. The team builds a molecule level model of the gel in sodium sulfate baths at three strengths. Electron scans of worn samples back the model.
Stronger baths drew far more ions onto the gel. Sulfate sped the loss of calcium from the gel, which forms gypsum and a swollen mineral. Both chew the gel and speed ion flow, which deepens the attack. Sodium clung tight to pore walls. Water ran far ahead of the other ions, with sulfate in tow.
Catalog record
| CREATOR | Mengjie You, Xiaosan Yin, Yuzhou Sun, Hairong Wu, Jimin Li, Xiangming Zhou, Neven Ukrainczyk, Lizhi Sun |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 40 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |