Abstract
It has been observed that the hydration of cement paste stops when the relative humidity drops below about 80%. A thermodynamic analysis shows that the capillary pressure exerted at that RH shifts the solubility of tricalcium silicate, so that it is in equilibrium with water. This is a reflection of the chemical shrinkage in this system: according to Le Chatelier's principle, since the volume of the products is less than that of the reactants, a negative (capillary) pressure opposes the reaction.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 987-992 |
| Number of pages | 6 |
| Journal | Cement and Concrete Research |
| Volume | 41 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2011 |
All Science Journal Classification (ASJC) codes
- Building and Construction
- General Materials Science
Keywords
- A. Humidity
- A. Hydration
- A. Reaction
Fingerprint
Dive into the research topics of 'Why alite stops hydrating below 80% relative humidity'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver